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Posted to commits@clerezza.apache.org by re...@apache.org on 2015/04/11 15:43:57 UTC

[5/9] clerezza git commit: CLEREZZA-983: Adapted to new casing of rdf-core (part 1)

http://git-wip-us.apache.org/repos/asf/clerezza/blob/60d73ea7/rdf/core/src/main/java/org/apache/clerezza/rdf/core/access/security/TcAccessController.java
----------------------------------------------------------------------
diff --git a/rdf/core/src/main/java/org/apache/clerezza/rdf/core/access/security/TcAccessController.java b/rdf/core/src/main/java/org/apache/clerezza/rdf/core/access/security/TcAccessController.java
index 1079a9d..274b7e5 100644
--- a/rdf/core/src/main/java/org/apache/clerezza/rdf/core/access/security/TcAccessController.java
+++ b/rdf/core/src/main/java/org/apache/clerezza/rdf/core/access/security/TcAccessController.java
@@ -33,10 +33,10 @@ import java.util.NoSuchElementException;
 import java.util.concurrent.locks.Lock;
 import org.apache.clerezza.rdf.core.LiteralFactory;
 import org.apache.clerezza.commons.rdf.BlankNode;
-import org.apache.clerezza.commons.rdf.BlankNodeOrIri;
-import org.apache.clerezza.commons.rdf.RdfTerm;
+import org.apache.clerezza.commons.rdf.BlankNodeOrIRI;
+import org.apache.clerezza.commons.rdf.RDFTerm;
 import org.apache.clerezza.commons.rdf.Triple;
-import org.apache.clerezza.commons.rdf.Iri;
+import org.apache.clerezza.commons.rdf.IRI;
 import org.apache.clerezza.rdf.core.access.NoSuchEntityException;
 import org.apache.clerezza.rdf.core.access.TcManager;
 import org.apache.clerezza.commons.rdf.impl.utils.TripleImpl;
@@ -59,24 +59,24 @@ import org.apache.clerezza.commons.rdf.Literal;
 public abstract class TcAccessController {
 
     private final TcManager tcManager;
-    private final Iri permissionGraphName = new Iri("urn:x-localinstance:/ImmutableGraph-access.ImmutableGraph");
+    private final IRI permissionGraphName = new IRI("urn:x-localinstance:/ImmutableGraph-access.ImmutableGraph");
     //we can't rely on ontology plugin in rdf core
     private String ontologyNamespace = "http://clerezza.apache.org/2010/07/10/graphpermssions#";
-    private final Iri readPermissionListProperty = new Iri(ontologyNamespace + "readPermissionList");
-    private final Iri readWritePermissionListProperty = new Iri(ontologyNamespace + "readWritePermissionList");
+    private final IRI readPermissionListProperty = new IRI(ontologyNamespace + "readPermissionList");
+    private final IRI readWritePermissionListProperty = new IRI(ontologyNamespace + "readWritePermissionList");
     /**
      * The first item in the subject RDF list.
      */
-    public static final Iri first = new Iri("http://www.w3.org/1999/02/22-rdf-syntax-ns#first");
+    public static final IRI first = new IRI("http://www.w3.org/1999/02/22-rdf-syntax-ns#first");
     /**
      * The rest of the subject RDF list after the first item.
      */
-    public static final Iri rest = new Iri("http://www.w3.org/1999/02/22-rdf-syntax-ns#rest");
-    public static final Iri rdfNil = new Iri("http://www.w3.org/1999/02/22-rdf-syntax-ns#nil");
-    private final Map<Iri, Collection<Permission>> readPermissionCache =
-            Collections.synchronizedMap(new HashMap<Iri, Collection<Permission>>());
-    private final Map<Iri, Collection<Permission>> readWritePermissionCache =
-            Collections.synchronizedMap(new HashMap<Iri, Collection<Permission>>());
+    public static final IRI rest = new IRI("http://www.w3.org/1999/02/22-rdf-syntax-ns#rest");
+    public static final IRI rdfNil = new IRI("http://www.w3.org/1999/02/22-rdf-syntax-ns#nil");
+    private final Map<IRI, Collection<Permission>> readPermissionCache =
+            Collections.synchronizedMap(new HashMap<IRI, Collection<Permission>>());
+    private final Map<IRI, Collection<Permission>> readWritePermissionCache =
+            Collections.synchronizedMap(new HashMap<IRI, Collection<Permission>>());
 
     /**
      *
@@ -86,7 +86,7 @@ public abstract class TcAccessController {
         this.tcManager = getTcManager();
     }
 
-    public void checkReadPermission(Iri GraphUri) {
+    public void checkReadPermission(IRI GraphUri) {
         if (GraphUri.equals(permissionGraphName)) {
             //This is world readable, as this prevents as from doingf things as
             //priviledged during verfification
@@ -111,7 +111,7 @@ public abstract class TcAccessController {
         }
     }
 
-    public void checkReadWritePermission(Iri GraphUri) {
+    public void checkReadWritePermission(IRI GraphUri) {
         SecurityManager security = System.getSecurityManager();
         if (security != null) {
             //will AllPermissions the rest is obsolete
@@ -143,7 +143,7 @@ public abstract class TcAccessController {
      * @param GraphUri
      * @param permissionDescriptions
      */
-    public void setRequiredReadPermissionStrings(Iri GraphUri,
+    public void setRequiredReadPermissionStrings(IRI GraphUri,
             Collection<String> permissionDescriptions) {
         readPermissionCache.remove(GraphUri);
         final Graph permissionMGraph = getOrCreatePermisionGraph();
@@ -151,7 +151,7 @@ public abstract class TcAccessController {
         l.lock();
         try {
             removeExistingRequiredReadPermissions(GraphUri, permissionMGraph);
-            final BlankNodeOrIri permissionList = createList(permissionDescriptions.iterator(), permissionMGraph);
+            final BlankNodeOrIRI permissionList = createList(permissionDescriptions.iterator(), permissionMGraph);
             permissionMGraph.add(new TripleImpl(GraphUri,
                     readPermissionListProperty, permissionList));
         } finally {
@@ -166,7 +166,7 @@ public abstract class TcAccessController {
      * @param GraphUri
      * @param permissionDescriptions
      */
-    public void setRequiredReadPermissions(Iri GraphUri,
+    public void setRequiredReadPermissions(IRI GraphUri,
             Collection<Permission> permissions) {
         Collection<String> permissionStrings = new ArrayList<String>();
         for (Permission permission : permissions) {
@@ -183,7 +183,7 @@ public abstract class TcAccessController {
      * @param GraphUri
      * @param permissionDescriptions
      */
-    public void setRequiredReadWritePermissionStrings(Iri GraphUri,
+    public void setRequiredReadWritePermissionStrings(IRI GraphUri,
             Collection<String> permissionDescriptions) {
         readWritePermissionCache.remove(GraphUri);
         final Graph permissionMGraph = getOrCreatePermisionGraph();
@@ -191,7 +191,7 @@ public abstract class TcAccessController {
         l.lock();
         try {
             removeExistingRequiredReadPermissions(GraphUri, permissionMGraph);
-            final BlankNodeOrIri permissionList = createList(permissionDescriptions.iterator(), permissionMGraph);
+            final BlankNodeOrIRI permissionList = createList(permissionDescriptions.iterator(), permissionMGraph);
             permissionMGraph.add(new TripleImpl(GraphUri,
                     readWritePermissionListProperty, permissionList));
         } finally {
@@ -207,7 +207,7 @@ public abstract class TcAccessController {
      * @param GraphUri
      * @param permissionDescriptions
      */
-    public void setRequiredReadWritePermissions(Iri GraphUri,
+    public void setRequiredReadWritePermissions(IRI GraphUri,
             Collection<Permission> permissions) {
         Collection<String> permissionStrings = new ArrayList<String>();
         for (Permission permission : permissions) {
@@ -224,7 +224,7 @@ public abstract class TcAccessController {
      * @param GraphUri
      * @return the collection of permissions
      */
-    public Collection<Permission> getRequiredReadPermissions(Iri GraphUri) {
+    public Collection<Permission> getRequiredReadPermissions(IRI GraphUri) {
         Collection<Permission> result = readPermissionCache.get(GraphUri);
         if (result == null) {
             result = new ArrayList<Permission>();
@@ -245,7 +245,7 @@ public abstract class TcAccessController {
      * @param GraphUri
      * @return the collection of permissions
      */
-    public Collection<Permission> getRequiredReadWritePermissions(Iri GraphUri) {
+    public Collection<Permission> getRequiredReadWritePermissions(IRI GraphUri) {
         Collection<Permission> result = readWritePermissionCache.get(GraphUri);
         if (result == null) {
             result = new ArrayList<Permission>();
@@ -258,7 +258,7 @@ public abstract class TcAccessController {
         return result;
     }
 
-    private BlankNodeOrIri createList(Iterator<String> iterator, Graph permissionMGraph) {
+    private BlankNodeOrIRI createList(Iterator<String> iterator, Graph permissionMGraph) {
         if (!iterator.hasNext()) {
             return rdfNil;
         }
@@ -272,23 +272,23 @@ public abstract class TcAccessController {
     }
 
     //called withiong write-lock
-    private void removeExistingRequiredReadPermissions(Iri GraphUri,
+    private void removeExistingRequiredReadPermissions(IRI GraphUri,
             Graph permissionMGraph) {
         try {
             Triple t = permissionMGraph.filter(GraphUri, readPermissionListProperty, null).next();
-            RdfTerm list = t.getObject();
-            removeList((BlankNodeOrIri) list, permissionMGraph);
+            RDFTerm list = t.getObject();
+            removeList((BlankNodeOrIRI) list, permissionMGraph);
             permissionMGraph.remove(t);
         } catch (NoSuchElementException e) {
             //There was no existing to remove
         }
     }
 
-    private void removeList(BlankNodeOrIri list, Graph permissionMGraph) {
+    private void removeList(BlankNodeOrIRI list, Graph permissionMGraph) {
         try {
             Triple t = permissionMGraph.filter(list, rest, null).next();
-            RdfTerm restList = t.getObject();
-            removeList((BlankNodeOrIri) restList, permissionMGraph);
+            RDFTerm restList = t.getObject();
+            removeList((BlankNodeOrIRI) restList, permissionMGraph);
             permissionMGraph.remove(t);
             Iterator<Triple> iter = permissionMGraph.filter(list, first, null);
             iter.next();
@@ -298,20 +298,20 @@ public abstract class TcAccessController {
         }
     }
 
-    private Collection<String> getRequiredReadWritePermissionStrings(final Iri GraphUri) {
+    private Collection<String> getRequiredReadWritePermissionStrings(final IRI GraphUri) {
         return getRequiredPermissionStrings(GraphUri, readWritePermissionListProperty);
     }
-    private Collection<String> getRequiredReadPermissionStrings(final Iri GraphUri) {
+    private Collection<String> getRequiredReadPermissionStrings(final IRI GraphUri) {
         return getRequiredPermissionStrings(GraphUri, readPermissionListProperty);
     }
-    private Collection<String> getRequiredPermissionStrings(final Iri GraphUri, Iri property) {
+    private Collection<String> getRequiredPermissionStrings(final IRI GraphUri, IRI property) {
         try {
             final Graph permissionMGraph = tcManager.getMGraph(permissionGraphName);
             Lock l = permissionMGraph.getLock().readLock();
             l.lock();
             try {
                 Triple t = permissionMGraph.filter(GraphUri, property, null).next();
-                BlankNodeOrIri list = (BlankNodeOrIri) t.getObject();
+                BlankNodeOrIRI list = (BlankNodeOrIRI) t.getObject();
                 LinkedList<String> result = new LinkedList<String>();
                 readList(list, permissionMGraph, result);
                 return result;
@@ -325,12 +325,12 @@ public abstract class TcAccessController {
         }
     }
 
-    private void readList(BlankNodeOrIri list, Graph permissionMGraph, LinkedList<String> target) {
+    private void readList(BlankNodeOrIRI list, Graph permissionMGraph, LinkedList<String> target) {
         if (list.equals(rdfNil)) {
             return;
         }
         Triple restTriple = permissionMGraph.filter(list, rest, null).next();
-        BlankNodeOrIri restList = (BlankNodeOrIri) restTriple.getObject();
+        BlankNodeOrIRI restList = (BlankNodeOrIRI) restTriple.getObject();
         readList(restList, permissionMGraph, target);
         Triple firstTriple = permissionMGraph.filter(list, first, null).next();
         Literal firstValue = (Literal) firstTriple.getObject();

http://git-wip-us.apache.org/repos/asf/clerezza/blob/60d73ea7/rdf/core/src/main/java/org/apache/clerezza/rdf/core/impl/WriteBlockedGraph.java
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diff --git a/rdf/core/src/main/java/org/apache/clerezza/rdf/core/impl/WriteBlockedGraph.java b/rdf/core/src/main/java/org/apache/clerezza/rdf/core/impl/WriteBlockedGraph.java
index 76a8b79..542215d 100644
--- a/rdf/core/src/main/java/org/apache/clerezza/rdf/core/impl/WriteBlockedGraph.java
+++ b/rdf/core/src/main/java/org/apache/clerezza/rdf/core/impl/WriteBlockedGraph.java
@@ -22,11 +22,11 @@ import java.util.AbstractCollection;
 import java.util.Collection;
 import java.util.Iterator;
 
-import org.apache.clerezza.commons.rdf.BlankNodeOrIri;
-import org.apache.clerezza.commons.rdf.RdfTerm;
+import org.apache.clerezza.commons.rdf.BlankNodeOrIRI;
+import org.apache.clerezza.commons.rdf.RDFTerm;
 import org.apache.clerezza.commons.rdf.Triple;
 import org.apache.clerezza.commons.rdf.Graph;
-import org.apache.clerezza.commons.rdf.Iri;
+import org.apache.clerezza.commons.rdf.IRI;
 import org.apache.clerezza.rdf.core.access.ReadOnlyException;
 import org.apache.clerezza.commons.rdf.ImmutableGraph;
 import org.apache.clerezza.commons.rdf.event.FilterTriple;
@@ -57,7 +57,7 @@ public class WriteBlockedGraph extends AbstractGraph
     }
 
     @Override
-    protected Iterator<Triple> performFilter(BlankNodeOrIri subject, Iri predicate, RdfTerm object) {
+    protected Iterator<Triple> performFilter(BlankNodeOrIRI subject, IRI predicate, RDFTerm object) {
         final Iterator<Triple> baseIter = triples.filter(subject, predicate, object);
         return new Iterator<Triple>() {
             

http://git-wip-us.apache.org/repos/asf/clerezza/blob/60d73ea7/rdf/core/src/main/java/org/apache/clerezza/rdf/core/impl/util/PrivilegedGraphWrapper.java
----------------------------------------------------------------------
diff --git a/rdf/core/src/main/java/org/apache/clerezza/rdf/core/impl/util/PrivilegedGraphWrapper.java b/rdf/core/src/main/java/org/apache/clerezza/rdf/core/impl/util/PrivilegedGraphWrapper.java
index 5e1968c..72e42cd 100644
--- a/rdf/core/src/main/java/org/apache/clerezza/rdf/core/impl/util/PrivilegedGraphWrapper.java
+++ b/rdf/core/src/main/java/org/apache/clerezza/rdf/core/impl/util/PrivilegedGraphWrapper.java
@@ -24,12 +24,12 @@ import java.util.Collection;
 import java.util.Iterator;
 import java.util.concurrent.locks.ReadWriteLock;
 import org.apache.clerezza.commons.rdf.impl.utils.simple.SimpleImmutableGraph;
-import org.apache.clerezza.commons.rdf.BlankNodeOrIri;
-import org.apache.clerezza.commons.rdf.RdfTerm;
+import org.apache.clerezza.commons.rdf.BlankNodeOrIRI;
+import org.apache.clerezza.commons.rdf.RDFTerm;
 import org.apache.clerezza.commons.rdf.Triple;
 import org.apache.clerezza.commons.rdf.Graph;
 import org.apache.clerezza.commons.rdf.ImmutableGraph;
-import org.apache.clerezza.commons.rdf.Iri;
+import org.apache.clerezza.commons.rdf.IRI;
 import org.apache.clerezza.commons.rdf.event.FilterTriple;
 import org.apache.clerezza.commons.rdf.event.GraphListener;
 
@@ -49,8 +49,8 @@ public class PrivilegedGraphWrapper implements Graph {
     }
 
     @Override
-    public Iterator<Triple> filter(final BlankNodeOrIri subject, final Iri predicate,
-            final RdfTerm object) {
+    public Iterator<Triple> filter(final BlankNodeOrIRI subject, final IRI predicate,
+            final RDFTerm object) {
         return AccessController.doPrivileged(new PrivilegedAction<Iterator<Triple>>() {
 
             @Override

http://git-wip-us.apache.org/repos/asf/clerezza/blob/60d73ea7/rdf/core/src/main/java/org/apache/clerezza/rdf/core/impl/util/SimpleLiteralFactory.java
----------------------------------------------------------------------
diff --git a/rdf/core/src/main/java/org/apache/clerezza/rdf/core/impl/util/SimpleLiteralFactory.java b/rdf/core/src/main/java/org/apache/clerezza/rdf/core/impl/util/SimpleLiteralFactory.java
index 9ee6979..c96207a 100644
--- a/rdf/core/src/main/java/org/apache/clerezza/rdf/core/impl/util/SimpleLiteralFactory.java
+++ b/rdf/core/src/main/java/org/apache/clerezza/rdf/core/impl/util/SimpleLiteralFactory.java
@@ -31,7 +31,7 @@ import java.util.Set;
 import org.apache.clerezza.rdf.core.InvalidLiteralTypeException;
 import org.apache.clerezza.rdf.core.LiteralFactory;
 import org.apache.clerezza.rdf.core.NoConvertorException;
-import org.apache.clerezza.commons.rdf.Iri;
+import org.apache.clerezza.commons.rdf.IRI;
 import org.apache.clerezza.rdf.core.impl.util.Base64;
 import org.apache.clerezza.rdf.core.impl.util.W3CDateFormat;
 import org.apache.clerezza.commons.rdf.Literal;
@@ -46,14 +46,14 @@ import org.apache.clerezza.commons.rdf.Literal;
 public class SimpleLiteralFactory extends LiteralFactory {
 
     private static final String XSD = "http://www.w3.org/2001/XMLSchema#";
-    final private static Iri xsdInteger = xsd("integer");
-    final private static Iri xsdInt = xsd("int");
-    final private static Iri xsdShort = xsd("short");
-    final private static Iri xsdByte = xsd("byte");
-    final private static Iri xsdLong = xsd("long");
+    final private static IRI xsdInteger = xsd("integer");
+    final private static IRI xsdInt = xsd("int");
+    final private static IRI xsdShort = xsd("short");
+    final private static IRI xsdByte = xsd("byte");
+    final private static IRI xsdLong = xsd("long");
     
 
-    final private static Set<Iri> decimalTypes = new HashSet<Iri>();
+    final private static Set<IRI> decimalTypes = new HashSet<IRI>();
 
     final private static Map<Class<?>, TypeConverter<?>> typeConverterMap = new HashMap<Class<?>, TypeConverter<?>>();
     final static Class<? extends byte[]> byteArrayType;
@@ -72,15 +72,15 @@ public class SimpleLiteralFactory extends LiteralFactory {
         typeConverterMap.put(Long.class, new LongConverter());
         typeConverterMap.put(Double.class, new DoubleConverter());
         typeConverterMap.put(Float.class, new FloatConverter());
-        typeConverterMap.put(Iri.class, new UriRefConverter());
+        typeConverterMap.put(IRI.class, new UriRefConverter());
     }
 
-    final private static Iri xsdDouble =xsd("double");
-    final private static Iri xsdFloat =xsd("float");
-    final private static Iri xsdAnyURI =xsd("anyURI");
+    final private static IRI xsdDouble =xsd("double");
+    final private static IRI xsdFloat =xsd("float");
+    final private static IRI xsdAnyURI =xsd("anyURI");
 
-    final private static Iri xsd(String name) {
-       return new Iri(XSD+name);
+    final private static IRI xsd(String name) {
+       return new IRI(XSD+name);
     }
 
     private static interface TypeConverter<T> {
@@ -90,7 +90,7 @@ public class SimpleLiteralFactory extends LiteralFactory {
 
     private static class  ByteArrayConverter implements TypeConverter<byte[]> {
 
-        private static final Iri base64Uri =xsd("base64Binary");
+        private static final IRI base64Uri =xsd("base64Binary");
 
         @Override
         public Literal createLiteral(byte[] value) {
@@ -109,7 +109,7 @@ public class SimpleLiteralFactory extends LiteralFactory {
     }
     private static class  DateConverter implements TypeConverter<Date> {
 
-        private static final Iri dateTimeUri =xsd("dateTime");
+        private static final IRI dateTimeUri =xsd("dateTime");
         private static final DateFormat DATE_FORMAT = new W3CDateFormat();
 
         @Override
@@ -134,7 +134,7 @@ public class SimpleLiteralFactory extends LiteralFactory {
 
     private static class BooleanConverter implements TypeConverter<Boolean> {
 
-        private static final Iri booleanUri =xsd("boolean");
+        private static final IRI booleanUri =xsd("boolean");
         public static final TypedLiteralImpl TRUE = new TypedLiteralImpl("true", booleanUri);
         public static final TypedLiteralImpl FALSE = new TypedLiteralImpl("false", booleanUri);
 
@@ -157,7 +157,7 @@ public class SimpleLiteralFactory extends LiteralFactory {
 
     private static class StringConverter implements TypeConverter<String> {
 
-        private static final Iri stringUri =xsd("string");
+        private static final IRI stringUri =xsd("string");
 
         @Override
         public Literal createLiteral(String value) {
@@ -261,21 +261,21 @@ public class SimpleLiteralFactory extends LiteralFactory {
         }
     }
     
-    private static class UriRefConverter implements TypeConverter<Iri> {
+    private static class UriRefConverter implements TypeConverter<IRI> {
 
 
 
         @Override
-        public Literal createLiteral(Iri value) {
+        public Literal createLiteral(IRI value) {
             return new TypedLiteralImpl(value.getUnicodeString(), xsdAnyURI);
         }
 
         @Override
-        public Iri createObject(Literal literal) {
+        public IRI createObject(Literal literal) {
             if (!literal.getDataType().equals(xsdAnyURI)) {
-                throw new InvalidLiteralTypeException(Iri.class, literal.getDataType());
+                throw new InvalidLiteralTypeException(IRI.class, literal.getDataType());
             }
-            return new Iri(literal.getLexicalForm());
+            return new IRI(literal.getLexicalForm());
         }
     }
 

http://git-wip-us.apache.org/repos/asf/clerezza/blob/60d73ea7/rdf/core/src/main/java/org/apache/clerezza/rdf/core/serializedform/Parser.java
----------------------------------------------------------------------
diff --git a/rdf/core/src/main/java/org/apache/clerezza/rdf/core/serializedform/Parser.java b/rdf/core/src/main/java/org/apache/clerezza/rdf/core/serializedform/Parser.java
index bd28749..5fe7341 100644
--- a/rdf/core/src/main/java/org/apache/clerezza/rdf/core/serializedform/Parser.java
+++ b/rdf/core/src/main/java/org/apache/clerezza/rdf/core/serializedform/Parser.java
@@ -34,7 +34,7 @@ import java.util.logging.Level;
 
 import org.apache.clerezza.commons.rdf.ImmutableGraph;
 import org.apache.clerezza.commons.rdf.Graph;
-import org.apache.clerezza.commons.rdf.Iri;
+import org.apache.clerezza.commons.rdf.IRI;
 import org.apache.clerezza.commons.rdf.impl.utils.simple.SimpleMGraph;
 import org.osgi.service.cm.ConfigurationAdmin;
 import org.osgi.service.component.ComponentContext;
@@ -206,7 +206,7 @@ public class Parser {
      * @throws UnsupportedFormatException
      */
     public ImmutableGraph parse(InputStream serializedGraph,
-            String formatIdentifier, Iri baseUri) throws UnsupportedFormatException {
+            String formatIdentifier, IRI baseUri) throws UnsupportedFormatException {
         Graph graph = new SimpleMGraph();
         parse(graph, serializedGraph, formatIdentifier, baseUri);
         return graph.getImmutableGraph();
@@ -225,7 +225,7 @@ public class Parser {
      * @throws UnsupportedFormatException
      */
     public void parse(Graph target, InputStream serializedGraph,
-            String formatIdentifier, Iri baseUri) throws UnsupportedFormatException {
+            String formatIdentifier, IRI baseUri) throws UnsupportedFormatException {
         String deParameterizedIdentifier;
         int semicolonPos = formatIdentifier.indexOf(';');
         if (semicolonPos > -1) {

http://git-wip-us.apache.org/repos/asf/clerezza/blob/60d73ea7/rdf/core/src/main/java/org/apache/clerezza/rdf/core/serializedform/ParsingProvider.java
----------------------------------------------------------------------
diff --git a/rdf/core/src/main/java/org/apache/clerezza/rdf/core/serializedform/ParsingProvider.java b/rdf/core/src/main/java/org/apache/clerezza/rdf/core/serializedform/ParsingProvider.java
index 24da826..3998beb 100644
--- a/rdf/core/src/main/java/org/apache/clerezza/rdf/core/serializedform/ParsingProvider.java
+++ b/rdf/core/src/main/java/org/apache/clerezza/rdf/core/serializedform/ParsingProvider.java
@@ -21,7 +21,7 @@ package org.apache.clerezza.rdf.core.serializedform;
 import java.io.InputStream;
 
 import org.apache.clerezza.commons.rdf.Graph;
-import org.apache.clerezza.commons.rdf.Iri;
+import org.apache.clerezza.commons.rdf.IRI;
 
 /**
  * An instance of this class parses RDF-ImmutableGraph from one or more serialization
@@ -44,6 +44,6 @@ public interface ParsingProvider {
      * @param baseUri the baseUri for interpreting relative uris, may be null
      */
     void parse(Graph target, InputStream serializedGraph,
-            String formatIdentifier, Iri baseUri);
+            String formatIdentifier, IRI baseUri);
 
 }

http://git-wip-us.apache.org/repos/asf/clerezza/blob/60d73ea7/rdf/core/src/main/java/org/apache/clerezza/rdf/core/sparql/SolutionMapping.java
----------------------------------------------------------------------
diff --git a/rdf/core/src/main/java/org/apache/clerezza/rdf/core/sparql/SolutionMapping.java b/rdf/core/src/main/java/org/apache/clerezza/rdf/core/sparql/SolutionMapping.java
index 1868ec1..60d1805 100644
--- a/rdf/core/src/main/java/org/apache/clerezza/rdf/core/sparql/SolutionMapping.java
+++ b/rdf/core/src/main/java/org/apache/clerezza/rdf/core/sparql/SolutionMapping.java
@@ -20,7 +20,7 @@ package org.apache.clerezza.rdf.core.sparql;
 
 import org.apache.clerezza.rdf.core.sparql.query.Variable;
 import java.util.Map;
-import org.apache.clerezza.commons.rdf.RdfTerm;
+import org.apache.clerezza.commons.rdf.RDFTerm;
 
 /**
  * A set of mapping from variable names to solutions.
@@ -35,7 +35,7 @@ import org.apache.clerezza.commons.rdf.RdfTerm;
  *
  * @author rbn
  */
-public interface SolutionMapping extends Map<Variable, RdfTerm> {
+public interface SolutionMapping extends Map<Variable, RDFTerm> {
 
     /**
      * Should be the equivalent to this:
@@ -46,5 +46,5 @@ public interface SolutionMapping extends Map<Variable, RdfTerm> {
      * @param name
      * @return
      */
-    public RdfTerm get(String name);
+    public RDFTerm get(String name);
 }

http://git-wip-us.apache.org/repos/asf/clerezza/blob/60d73ea7/rdf/core/src/main/java/org/apache/clerezza/rdf/core/sparql/SparqlPreParser.java
----------------------------------------------------------------------
diff --git a/rdf/core/src/main/java/org/apache/clerezza/rdf/core/sparql/SparqlPreParser.java b/rdf/core/src/main/java/org/apache/clerezza/rdf/core/sparql/SparqlPreParser.java
index 4ada2b8..b77d93a 100644
--- a/rdf/core/src/main/java/org/apache/clerezza/rdf/core/sparql/SparqlPreParser.java
+++ b/rdf/core/src/main/java/org/apache/clerezza/rdf/core/sparql/SparqlPreParser.java
@@ -22,7 +22,7 @@ import java.io.StringReader;
 import java.util.HashSet;
 import java.util.List;
 import java.util.Set;
-import org.apache.clerezza.commons.rdf.Iri;
+import org.apache.clerezza.commons.rdf.IRI;
 import org.apache.clerezza.rdf.core.access.TcProvider;
 import org.apache.clerezza.rdf.core.sparql.query.AlternativeGraphPattern;
 import org.apache.clerezza.rdf.core.sparql.query.DataSet;
@@ -66,8 +66,8 @@ public class SparqlPreParser {
      * @return 
      * @throws ParseException 
      */
-    public Set<Iri> getReferredGraphs(String queryString, Iri defaultGraph) throws ParseException {
-        Set<Iri> referredGraphs;
+    public Set<IRI> getReferredGraphs(String queryString, IRI defaultGraph) throws ParseException {
+        Set<IRI> referredGraphs;
         JavaCCGeneratedSparqlPreParser parser = new JavaCCGeneratedSparqlPreParser(new StringReader(queryString));
         SparqlUnit sparqlUnit;
         sparqlUnit = parser.parse();
@@ -79,7 +79,7 @@ public class SparqlPreParser {
                 referredGraphs = dataSet.getDefaultGraphs();
                 referredGraphs.addAll(dataSet.getNamedGraphs());
             } else {
-                referredGraphs = new HashSet<Iri>();
+                referredGraphs = new HashSet<IRI>();
             }
             GroupGraphPattern queryPattern = q.getQueryPattern();
             if (queryPattern != null) {

http://git-wip-us.apache.org/repos/asf/clerezza/blob/60d73ea7/rdf/core/src/main/java/org/apache/clerezza/rdf/core/sparql/query/DataSet.java
----------------------------------------------------------------------
diff --git a/rdf/core/src/main/java/org/apache/clerezza/rdf/core/sparql/query/DataSet.java b/rdf/core/src/main/java/org/apache/clerezza/rdf/core/sparql/query/DataSet.java
index f35a609..649b883 100644
--- a/rdf/core/src/main/java/org/apache/clerezza/rdf/core/sparql/query/DataSet.java
+++ b/rdf/core/src/main/java/org/apache/clerezza/rdf/core/sparql/query/DataSet.java
@@ -19,7 +19,7 @@
 package org.apache.clerezza.rdf.core.sparql.query;
 
 import java.util.Set;
-import org.apache.clerezza.commons.rdf.Iri;
+import org.apache.clerezza.commons.rdf.IRI;
 
 /**
  * This interface definition is not yet stable and may change in future.
@@ -34,7 +34,7 @@ public interface DataSet {
      *        an empty set if no default ImmutableGraph is specified,
      *        otherwise a set of their UriRefs
      */
-    public Set<Iri> getDefaultGraphs();
+    public Set<IRI> getDefaultGraphs();
 
     /**
      *
@@ -42,5 +42,5 @@ public interface DataSet {
      *        an empty set if no named ImmutableGraph is specified,
      *        otherwise a set of their UriRefs
      */
-    public Set<Iri> getNamedGraphs();
+    public Set<IRI> getNamedGraphs();
 }

http://git-wip-us.apache.org/repos/asf/clerezza/blob/60d73ea7/rdf/core/src/main/java/org/apache/clerezza/rdf/core/sparql/query/FunctionCall.java
----------------------------------------------------------------------
diff --git a/rdf/core/src/main/java/org/apache/clerezza/rdf/core/sparql/query/FunctionCall.java b/rdf/core/src/main/java/org/apache/clerezza/rdf/core/sparql/query/FunctionCall.java
index 387ced6..39e2161 100644
--- a/rdf/core/src/main/java/org/apache/clerezza/rdf/core/sparql/query/FunctionCall.java
+++ b/rdf/core/src/main/java/org/apache/clerezza/rdf/core/sparql/query/FunctionCall.java
@@ -19,26 +19,26 @@
 package org.apache.clerezza.rdf.core.sparql.query;
 
 import java.util.List;
-import org.apache.clerezza.commons.rdf.Iri;
+import org.apache.clerezza.commons.rdf.IRI;
 
 /**
  * Defines a function call which is one form of {@link Expression}.
- * A function call has a name of type {@link Iri} and a list of arguments,
+ * A function call has a name of type {@link IRI} and a list of arguments,
  * where each argument is an {@link Expression}.
  *
  * @author hasan
  */
 public class FunctionCall implements Expression {
 
-    private final Iri name;
+    private final IRI name;
     private final List<Expression> arguments;
 
-    public FunctionCall(Iri name, List<Expression> arguments) {
+    public FunctionCall(IRI name, List<Expression> arguments) {
         this.name = name;
         this.arguments = arguments;
     }
 
-    public Iri getName() {
+    public IRI getName() {
         return name;
     };
 

http://git-wip-us.apache.org/repos/asf/clerezza/blob/60d73ea7/rdf/core/src/main/java/org/apache/clerezza/rdf/core/sparql/query/GroupGraphPattern.java
----------------------------------------------------------------------
diff --git a/rdf/core/src/main/java/org/apache/clerezza/rdf/core/sparql/query/GroupGraphPattern.java b/rdf/core/src/main/java/org/apache/clerezza/rdf/core/sparql/query/GroupGraphPattern.java
index 787cbdd..da13f13 100644
--- a/rdf/core/src/main/java/org/apache/clerezza/rdf/core/sparql/query/GroupGraphPattern.java
+++ b/rdf/core/src/main/java/org/apache/clerezza/rdf/core/sparql/query/GroupGraphPattern.java
@@ -20,7 +20,7 @@ package org.apache.clerezza.rdf.core.sparql.query;
 
 import java.util.List;
 import java.util.Set;
-import org.apache.clerezza.commons.rdf.Iri;
+import org.apache.clerezza.commons.rdf.IRI;
 
 /**
  * Defines a group ImmutableGraph pattern.
@@ -58,7 +58,7 @@ public interface GroupGraphPattern extends GraphPattern {
      * @return
      *      all graphs referred in this ImmutableGraph pattern.
      */
-    public Set<Iri> getReferredGraphs();
+    public Set<IRI> getReferredGraphs();
 
     /**
 	 * @return 

http://git-wip-us.apache.org/repos/asf/clerezza/blob/60d73ea7/rdf/core/src/main/java/org/apache/clerezza/rdf/core/sparql/query/InlineData.java
----------------------------------------------------------------------
diff --git a/rdf/core/src/main/java/org/apache/clerezza/rdf/core/sparql/query/InlineData.java b/rdf/core/src/main/java/org/apache/clerezza/rdf/core/sparql/query/InlineData.java
index 49e0b68..3040813 100644
--- a/rdf/core/src/main/java/org/apache/clerezza/rdf/core/sparql/query/InlineData.java
+++ b/rdf/core/src/main/java/org/apache/clerezza/rdf/core/sparql/query/InlineData.java
@@ -19,7 +19,7 @@
 package org.apache.clerezza.rdf.core.sparql.query;
 
 import java.util.List;
-import org.apache.clerezza.commons.rdf.RdfTerm;
+import org.apache.clerezza.commons.rdf.RDFTerm;
 
 /**
  *
@@ -27,5 +27,5 @@ import org.apache.clerezza.commons.rdf.RdfTerm;
  */
 public interface InlineData extends GraphPattern {
     public List<Variable> getVariables();
-    public List<List<RdfTerm>> getValues();
+    public List<List<RDFTerm>> getValues();
 }

http://git-wip-us.apache.org/repos/asf/clerezza/blob/60d73ea7/rdf/core/src/main/java/org/apache/clerezza/rdf/core/sparql/query/PredicatePath.java
----------------------------------------------------------------------
diff --git a/rdf/core/src/main/java/org/apache/clerezza/rdf/core/sparql/query/PredicatePath.java b/rdf/core/src/main/java/org/apache/clerezza/rdf/core/sparql/query/PredicatePath.java
index 9c0989d..9b926d1 100644
--- a/rdf/core/src/main/java/org/apache/clerezza/rdf/core/sparql/query/PredicatePath.java
+++ b/rdf/core/src/main/java/org/apache/clerezza/rdf/core/sparql/query/PredicatePath.java
@@ -18,20 +18,20 @@
  */
 package org.apache.clerezza.rdf.core.sparql.query;
 
-import org.apache.clerezza.commons.rdf.Iri;
+import org.apache.clerezza.commons.rdf.IRI;
 
 /**
  *
  * @author hasan
  */
 public class PredicatePath implements PropertyPathExpression {
-    private Iri predicatePath;
+    private IRI predicatePath;
 
-    public PredicatePath(Iri predicatePath) {
+    public PredicatePath(IRI predicatePath) {
         this.predicatePath = predicatePath;
     }
 
-    public Iri getPredicatePath() {
+    public IRI getPredicatePath() {
         return predicatePath;
     }
 

http://git-wip-us.apache.org/repos/asf/clerezza/blob/60d73ea7/rdf/core/src/main/java/org/apache/clerezza/rdf/core/sparql/query/ResourceOrVariable.java
----------------------------------------------------------------------
diff --git a/rdf/core/src/main/java/org/apache/clerezza/rdf/core/sparql/query/ResourceOrVariable.java b/rdf/core/src/main/java/org/apache/clerezza/rdf/core/sparql/query/ResourceOrVariable.java
index e9e14aa..0f00bc9 100644
--- a/rdf/core/src/main/java/org/apache/clerezza/rdf/core/sparql/query/ResourceOrVariable.java
+++ b/rdf/core/src/main/java/org/apache/clerezza/rdf/core/sparql/query/ResourceOrVariable.java
@@ -18,19 +18,19 @@
  */
 package org.apache.clerezza.rdf.core.sparql.query;
 
-import org.apache.clerezza.commons.rdf.RdfTerm;
+import org.apache.clerezza.commons.rdf.RDFTerm;
 
 /**
- * Wraps either a {@link RdfTerm} or a {@link Variable}
+ * Wraps either a {@link RDFTerm} or a {@link Variable}
  *
  * @author hasan
  */
 public class ResourceOrVariable {
 
-    private final RdfTerm resource;
+    private final RDFTerm resource;
     private final Variable variable;
 
-    public ResourceOrVariable(RdfTerm resource) {
+    public ResourceOrVariable(RDFTerm resource) {
         if (resource == null) {
             throw new IllegalArgumentException("Invalid resource: null");
         }
@@ -49,7 +49,7 @@ public class ResourceOrVariable {
     /**
      *
      * @return
-     *        true if it is a {@link Variable}, false if it is a {@link RdfTerm}
+     *        true if it is a {@link Variable}, false if it is a {@link RDFTerm}
      */
     public boolean isVariable() {
         return resource == null;
@@ -60,7 +60,7 @@ public class ResourceOrVariable {
      * @return
      *        the wrapped Resource if it is a Resource, null otherwise
      */
-    public RdfTerm getResource() {
+    public RDFTerm getResource() {
         return resource;
     }
     

http://git-wip-us.apache.org/repos/asf/clerezza/blob/60d73ea7/rdf/core/src/main/java/org/apache/clerezza/rdf/core/sparql/query/UriRefExpression.java
----------------------------------------------------------------------
diff --git a/rdf/core/src/main/java/org/apache/clerezza/rdf/core/sparql/query/UriRefExpression.java b/rdf/core/src/main/java/org/apache/clerezza/rdf/core/sparql/query/UriRefExpression.java
index 8d6206b..5910ac2 100644
--- a/rdf/core/src/main/java/org/apache/clerezza/rdf/core/sparql/query/UriRefExpression.java
+++ b/rdf/core/src/main/java/org/apache/clerezza/rdf/core/sparql/query/UriRefExpression.java
@@ -18,22 +18,22 @@
  */
 package org.apache.clerezza.rdf.core.sparql.query;
 
-import org.apache.clerezza.commons.rdf.Iri;
+import org.apache.clerezza.commons.rdf.IRI;
 
 /**
- * Wraps a {@link Iri} in an {@link Expression}.
+ * Wraps a {@link IRI} in an {@link Expression}.
  *
  * @author hasan
  */
 public class UriRefExpression implements Expression {
 
-    private final Iri uriRef;
+    private final IRI uriRef;
 
-    public UriRefExpression(Iri uriRef) {
+    public UriRefExpression(IRI uriRef) {
         this.uriRef = uriRef;
     }
 
-    public Iri getUriRef() {
+    public IRI getUriRef() {
         return uriRef;
     }
 }

http://git-wip-us.apache.org/repos/asf/clerezza/blob/60d73ea7/rdf/core/src/main/java/org/apache/clerezza/rdf/core/sparql/query/UriRefOrVariable.java
----------------------------------------------------------------------
diff --git a/rdf/core/src/main/java/org/apache/clerezza/rdf/core/sparql/query/UriRefOrVariable.java b/rdf/core/src/main/java/org/apache/clerezza/rdf/core/sparql/query/UriRefOrVariable.java
index a0e007f..803c1bc 100644
--- a/rdf/core/src/main/java/org/apache/clerezza/rdf/core/sparql/query/UriRefOrVariable.java
+++ b/rdf/core/src/main/java/org/apache/clerezza/rdf/core/sparql/query/UriRefOrVariable.java
@@ -18,10 +18,10 @@
  */
 package org.apache.clerezza.rdf.core.sparql.query;
 
-import org.apache.clerezza.commons.rdf.Iri;
+import org.apache.clerezza.commons.rdf.IRI;
 
 /**
- * Wraps either a {@link Iri} or a {@link Variable}.
+ * Wraps either a {@link IRI} or a {@link Variable}.
  *
  * @author rbn
  */
@@ -31,13 +31,13 @@ public class UriRefOrVariable extends ResourceOrVariable {
         super(variable);
     }
 
-    public UriRefOrVariable(Iri resource) {
+    public UriRefOrVariable(IRI resource) {
         super(resource);
     }
 
     @Override
-    public Iri getResource() {
-        return (Iri)super.getResource();
+    public IRI getResource() {
+        return (IRI)super.getResource();
     }
 
 }

http://git-wip-us.apache.org/repos/asf/clerezza/blob/60d73ea7/rdf/core/src/main/java/org/apache/clerezza/rdf/core/sparql/query/impl/SimpleDataSet.java
----------------------------------------------------------------------
diff --git a/rdf/core/src/main/java/org/apache/clerezza/rdf/core/sparql/query/impl/SimpleDataSet.java b/rdf/core/src/main/java/org/apache/clerezza/rdf/core/sparql/query/impl/SimpleDataSet.java
index 1e1ddbe..354f5b0 100644
--- a/rdf/core/src/main/java/org/apache/clerezza/rdf/core/sparql/query/impl/SimpleDataSet.java
+++ b/rdf/core/src/main/java/org/apache/clerezza/rdf/core/sparql/query/impl/SimpleDataSet.java
@@ -20,7 +20,7 @@ package org.apache.clerezza.rdf.core.sparql.query.impl;
 
 import java.util.HashSet;
 import java.util.Set;
-import org.apache.clerezza.commons.rdf.Iri;
+import org.apache.clerezza.commons.rdf.IRI;
 import org.apache.clerezza.rdf.core.sparql.query.DataSet;
 
 /**
@@ -28,24 +28,24 @@ import org.apache.clerezza.rdf.core.sparql.query.DataSet;
  * @author hasan
  */
 public class SimpleDataSet implements DataSet {
-    private Set<Iri> defaultGraphs = new HashSet<Iri>();
-    private Set<Iri> namedGraphs = new HashSet<Iri>();
+    private Set<IRI> defaultGraphs = new HashSet<IRI>();
+    private Set<IRI> namedGraphs = new HashSet<IRI>();
 
     @Override
-    public Set<Iri> getDefaultGraphs() {
+    public Set<IRI> getDefaultGraphs() {
         return defaultGraphs;
     }
 
     @Override
-    public Set<Iri> getNamedGraphs() {
+    public Set<IRI> getNamedGraphs() {
         return namedGraphs;
     }
 
-    public void addDefaultGraph(Iri defaultGraph) {
+    public void addDefaultGraph(IRI defaultGraph) {
         defaultGraphs.add(defaultGraph);
     }
 
-    public void addNamedGraph(Iri namedGraph) {
+    public void addNamedGraph(IRI namedGraph) {
         namedGraphs.add(namedGraph);
     }
 }

http://git-wip-us.apache.org/repos/asf/clerezza/blob/60d73ea7/rdf/core/src/main/java/org/apache/clerezza/rdf/core/sparql/query/impl/SimpleGroupGraphPattern.java
----------------------------------------------------------------------
diff --git a/rdf/core/src/main/java/org/apache/clerezza/rdf/core/sparql/query/impl/SimpleGroupGraphPattern.java b/rdf/core/src/main/java/org/apache/clerezza/rdf/core/sparql/query/impl/SimpleGroupGraphPattern.java
index b9d74db..cd893d2 100644
--- a/rdf/core/src/main/java/org/apache/clerezza/rdf/core/sparql/query/impl/SimpleGroupGraphPattern.java
+++ b/rdf/core/src/main/java/org/apache/clerezza/rdf/core/sparql/query/impl/SimpleGroupGraphPattern.java
@@ -23,7 +23,7 @@ import java.util.HashSet;
 import java.util.LinkedHashSet;
 import java.util.List;
 import java.util.Set;
-import org.apache.clerezza.commons.rdf.Iri;
+import org.apache.clerezza.commons.rdf.IRI;
 import org.apache.clerezza.rdf.core.sparql.query.AlternativeGraphPattern;
 import org.apache.clerezza.rdf.core.sparql.query.BasicGraphPattern;
 import org.apache.clerezza.rdf.core.sparql.query.Expression;
@@ -189,8 +189,8 @@ public class SimpleGroupGraphPattern implements GroupGraphPattern {
 	}
 
     @Override
-    public Set<Iri> getReferredGraphs() {
-        Set<Iri> referredGraphs = new HashSet<Iri>();
+    public Set<IRI> getReferredGraphs() {
+        Set<IRI> referredGraphs = new HashSet<IRI>();
         if (subSelect != null) {
             GroupGraphPattern queryPattern = subSelect.getQueryPattern();
             referredGraphs.addAll(queryPattern.getReferredGraphs());
@@ -202,8 +202,8 @@ public class SimpleGroupGraphPattern implements GroupGraphPattern {
         return referredGraphs;
     }
 
-    private Set<Iri> getReferredGraphs(GraphPattern graphPattern) {
-        Set<Iri> referredGraphs = new HashSet<Iri>();
+    private Set<IRI> getReferredGraphs(GraphPattern graphPattern) {
+        Set<IRI> referredGraphs = new HashSet<IRI>();
         if (graphPattern instanceof GraphGraphPattern) {
             GraphGraphPattern graphGraphPattern = (GraphGraphPattern) graphPattern;
             UriRefOrVariable ImmutableGraph = graphGraphPattern.getGraph();

http://git-wip-us.apache.org/repos/asf/clerezza/blob/60d73ea7/rdf/core/src/main/java/org/apache/clerezza/rdf/core/sparql/query/impl/SimpleInlineData.java
----------------------------------------------------------------------
diff --git a/rdf/core/src/main/java/org/apache/clerezza/rdf/core/sparql/query/impl/SimpleInlineData.java b/rdf/core/src/main/java/org/apache/clerezza/rdf/core/sparql/query/impl/SimpleInlineData.java
index 8b193e7..3b49f02 100644
--- a/rdf/core/src/main/java/org/apache/clerezza/rdf/core/sparql/query/impl/SimpleInlineData.java
+++ b/rdf/core/src/main/java/org/apache/clerezza/rdf/core/sparql/query/impl/SimpleInlineData.java
@@ -20,7 +20,7 @@ package org.apache.clerezza.rdf.core.sparql.query.impl;
 
 import java.util.ArrayList;
 import java.util.List;
-import org.apache.clerezza.commons.rdf.RdfTerm;
+import org.apache.clerezza.commons.rdf.RDFTerm;
 import org.apache.clerezza.rdf.core.sparql.query.InlineData;
 import org.apache.clerezza.rdf.core.sparql.query.Variable;
 
@@ -31,7 +31,7 @@ import org.apache.clerezza.rdf.core.sparql.query.Variable;
 public class SimpleInlineData implements InlineData {
 
     private List<Variable> variables = new ArrayList<Variable>();
-    private List<List<RdfTerm>> values = new ArrayList<List<RdfTerm>>();
+    private List<List<RDFTerm>> values = new ArrayList<List<RDFTerm>>();
 
     @Override
     public List<Variable> getVariables() {
@@ -39,7 +39,7 @@ public class SimpleInlineData implements InlineData {
     }
 
     @Override
-    public List<List<RdfTerm>> getValues() {
+    public List<List<RDFTerm>> getValues() {
         return values;
     }
 
@@ -47,7 +47,7 @@ public class SimpleInlineData implements InlineData {
         variables.add(variable);
     }
 
-    public void addValues(List<RdfTerm> values) {
+    public void addValues(List<RDFTerm> values) {
         this.values.add(values);
     }
 }

http://git-wip-us.apache.org/repos/asf/clerezza/blob/60d73ea7/rdf/core/src/main/java/org/apache/clerezza/rdf/core/sparql/query/impl/SimplePropertyPathPattern.java
----------------------------------------------------------------------
diff --git a/rdf/core/src/main/java/org/apache/clerezza/rdf/core/sparql/query/impl/SimplePropertyPathPattern.java b/rdf/core/src/main/java/org/apache/clerezza/rdf/core/sparql/query/impl/SimplePropertyPathPattern.java
index 7a77138..36ed721 100644
--- a/rdf/core/src/main/java/org/apache/clerezza/rdf/core/sparql/query/impl/SimplePropertyPathPattern.java
+++ b/rdf/core/src/main/java/org/apache/clerezza/rdf/core/sparql/query/impl/SimplePropertyPathPattern.java
@@ -18,8 +18,8 @@
  */
 package org.apache.clerezza.rdf.core.sparql.query.impl;
 
-import org.apache.clerezza.commons.rdf.BlankNodeOrIri;
-import org.apache.clerezza.commons.rdf.RdfTerm;
+import org.apache.clerezza.commons.rdf.BlankNodeOrIRI;
+import org.apache.clerezza.commons.rdf.RDFTerm;
 import org.apache.clerezza.rdf.core.sparql.query.PropertyPathExpression;
 import org.apache.clerezza.rdf.core.sparql.query.PropertyPathExpressionOrVariable;
 import org.apache.clerezza.rdf.core.sparql.query.PropertyPathPattern;
@@ -58,17 +58,17 @@ public class SimplePropertyPathPattern implements PropertyPathPattern {
                 new ResourceOrVariable(object));
     }
 
-    public SimplePropertyPathPattern(BlankNodeOrIri subject, Variable propertyPathExpression, Variable object) {
+    public SimplePropertyPathPattern(BlankNodeOrIRI subject, Variable propertyPathExpression, Variable object) {
         this(new ResourceOrVariable(subject), new PropertyPathExpressionOrVariable(propertyPathExpression),
                 new ResourceOrVariable(object));
     }
 
-    public SimplePropertyPathPattern(Variable subject, Variable propertyPathExpression, RdfTerm object) {
+    public SimplePropertyPathPattern(Variable subject, Variable propertyPathExpression, RDFTerm object) {
         this(new ResourceOrVariable(subject), new PropertyPathExpressionOrVariable(propertyPathExpression),
                 new ResourceOrVariable(object));
     }
 
-    public SimplePropertyPathPattern(BlankNodeOrIri subject, Variable propertyPathExpression, RdfTerm object) {
+    public SimplePropertyPathPattern(BlankNodeOrIRI subject, Variable propertyPathExpression, RDFTerm object) {
         this(new ResourceOrVariable(subject), new PropertyPathExpressionOrVariable(propertyPathExpression),
                 new ResourceOrVariable(object));
     }
@@ -78,17 +78,17 @@ public class SimplePropertyPathPattern implements PropertyPathPattern {
                 new ResourceOrVariable(object));
     }
 
-    public SimplePropertyPathPattern(BlankNodeOrIri subject, PropertyPathExpression propertyPathExpression, Variable object) {
+    public SimplePropertyPathPattern(BlankNodeOrIRI subject, PropertyPathExpression propertyPathExpression, Variable object) {
         this(new ResourceOrVariable(subject), new PropertyPathExpressionOrVariable(propertyPathExpression),
                 new ResourceOrVariable(object));
     }
 
-    public SimplePropertyPathPattern(Variable subject, PropertyPathExpression propertyPathExpression, RdfTerm object) {
+    public SimplePropertyPathPattern(Variable subject, PropertyPathExpression propertyPathExpression, RDFTerm object) {
         this(new ResourceOrVariable(subject), new PropertyPathExpressionOrVariable(propertyPathExpression),
                 new ResourceOrVariable(object));
     }
 
-    public SimplePropertyPathPattern(BlankNodeOrIri subject, PropertyPathExpression propertyPathExpression, RdfTerm object) {
+    public SimplePropertyPathPattern(BlankNodeOrIRI subject, PropertyPathExpression propertyPathExpression, RDFTerm object) {
         this(new ResourceOrVariable(subject), new PropertyPathExpressionOrVariable(propertyPathExpression),
                 new ResourceOrVariable(object));
     }

http://git-wip-us.apache.org/repos/asf/clerezza/blob/60d73ea7/rdf/core/src/main/java/org/apache/clerezza/rdf/core/sparql/query/impl/SimpleQuery.java
----------------------------------------------------------------------
diff --git a/rdf/core/src/main/java/org/apache/clerezza/rdf/core/sparql/query/impl/SimpleQuery.java b/rdf/core/src/main/java/org/apache/clerezza/rdf/core/sparql/query/impl/SimpleQuery.java
index 7a60d8f..7f8407b 100644
--- a/rdf/core/src/main/java/org/apache/clerezza/rdf/core/sparql/query/impl/SimpleQuery.java
+++ b/rdf/core/src/main/java/org/apache/clerezza/rdf/core/sparql/query/impl/SimpleQuery.java
@@ -18,7 +18,7 @@
  */
 package org.apache.clerezza.rdf.core.sparql.query.impl;
 
-import org.apache.clerezza.commons.rdf.Iri;
+import org.apache.clerezza.commons.rdf.IRI;
 import org.apache.clerezza.rdf.core.sparql.query.DataSet;
 import org.apache.clerezza.rdf.core.sparql.query.GroupGraphPattern;
 import org.apache.clerezza.rdf.core.sparql.query.InlineData;
@@ -49,14 +49,14 @@ public abstract class SimpleQuery implements Query {
         return inlineData;
     }
 
-    public void addDefaultGraph(Iri defaultGraph) {
+    public void addDefaultGraph(IRI defaultGraph) {
         if (dataSet == null) {
             dataSet = new SimpleDataSet();
         }
         dataSet.addDefaultGraph(defaultGraph);
     }
 
-    public void addNamedGraph(Iri namedGraph) {
+    public void addNamedGraph(IRI namedGraph) {
         if (dataSet == null) {
             dataSet = new SimpleDataSet();
         }

http://git-wip-us.apache.org/repos/asf/clerezza/blob/60d73ea7/rdf/core/src/main/java/org/apache/clerezza/rdf/core/sparql/query/impl/SimpleStringQuerySerializer.java
----------------------------------------------------------------------
diff --git a/rdf/core/src/main/java/org/apache/clerezza/rdf/core/sparql/query/impl/SimpleStringQuerySerializer.java b/rdf/core/src/main/java/org/apache/clerezza/rdf/core/sparql/query/impl/SimpleStringQuerySerializer.java
index a27d12b..18266f6 100644
--- a/rdf/core/src/main/java/org/apache/clerezza/rdf/core/sparql/query/impl/SimpleStringQuerySerializer.java
+++ b/rdf/core/src/main/java/org/apache/clerezza/rdf/core/sparql/query/impl/SimpleStringQuerySerializer.java
@@ -21,8 +21,8 @@ package org.apache.clerezza.rdf.core.sparql.query.impl;
 import java.util.List;
 import java.util.Set;
 import org.apache.clerezza.commons.rdf.BlankNode;
-import org.apache.clerezza.commons.rdf.RdfTerm;
-import org.apache.clerezza.commons.rdf.Iri;
+import org.apache.clerezza.commons.rdf.RDFTerm;
+import org.apache.clerezza.commons.rdf.IRI;
 import org.apache.clerezza.rdf.core.sparql.StringQuerySerializer;
 import org.apache.clerezza.rdf.core.sparql.query.AlternativeGraphPattern;
 import org.apache.clerezza.rdf.core.sparql.query.AskQuery;
@@ -92,10 +92,10 @@ public class SimpleStringQuerySerializer extends StringQuerySerializer {
     private void appendDataSet(StringBuffer s, SimpleQuery q) {
         DataSet dataSet = q.getDataSet();
         if (dataSet != null) {
-            for (Iri dg : dataSet.getDefaultGraphs()) {
+            for (IRI dg : dataSet.getDefaultGraphs()) {
                 s.append("FROM ").append(dg.toString()).append("\n");
             }
-            for (Iri ng : dataSet.getNamedGraphs()) {
+            for (IRI ng : dataSet.getNamedGraphs()) {
                 s.append("FROM NAMED ").append(ng.toString()).append("\n");
             }
         }
@@ -186,7 +186,7 @@ public class SimpleStringQuerySerializer extends StringQuerySerializer {
         if (n.isVariable()) {
             appendVariable(s, n.getVariable());
         } else {
-            RdfTerm r = n.getResource();
+            RDFTerm r = n.getResource();
             if (r instanceof BlankNode) {
                 s.append("_:").append(r.toString().replace("@", "."));
             } else {

http://git-wip-us.apache.org/repos/asf/clerezza/blob/60d73ea7/rdf/core/src/main/java/org/apache/clerezza/rdf/core/sparql/query/impl/SimpleTriplePattern.java
----------------------------------------------------------------------
diff --git a/rdf/core/src/main/java/org/apache/clerezza/rdf/core/sparql/query/impl/SimpleTriplePattern.java b/rdf/core/src/main/java/org/apache/clerezza/rdf/core/sparql/query/impl/SimpleTriplePattern.java
index 1067e8b..adad648 100644
--- a/rdf/core/src/main/java/org/apache/clerezza/rdf/core/sparql/query/impl/SimpleTriplePattern.java
+++ b/rdf/core/src/main/java/org/apache/clerezza/rdf/core/sparql/query/impl/SimpleTriplePattern.java
@@ -18,9 +18,9 @@
  */
 package org.apache.clerezza.rdf.core.sparql.query.impl;
 
-import org.apache.clerezza.commons.rdf.BlankNodeOrIri;
-import org.apache.clerezza.commons.rdf.RdfTerm;
-import org.apache.clerezza.commons.rdf.Iri;
+import org.apache.clerezza.commons.rdf.BlankNodeOrIRI;
+import org.apache.clerezza.commons.rdf.RDFTerm;
+import org.apache.clerezza.commons.rdf.IRI;
 import org.apache.clerezza.rdf.core.sparql.query.ResourceOrVariable;
 import org.apache.clerezza.rdf.core.sparql.query.TriplePattern;
 import org.apache.clerezza.rdf.core.sparql.query.UriRefOrVariable;
@@ -58,37 +58,37 @@ public class SimpleTriplePattern implements TriplePattern {
                 new ResourceOrVariable(object));
     }
 
-    public SimpleTriplePattern(BlankNodeOrIri subject, Variable predicate, Variable object) {
+    public SimpleTriplePattern(BlankNodeOrIRI subject, Variable predicate, Variable object) {
         this(new ResourceOrVariable(subject), new UriRefOrVariable(predicate),
                 new ResourceOrVariable(object));
     }
 
-    public SimpleTriplePattern(Variable subject, Iri predicate, Variable object) {
+    public SimpleTriplePattern(Variable subject, IRI predicate, Variable object) {
         this(new ResourceOrVariable(subject), new UriRefOrVariable(predicate),
                 new ResourceOrVariable(object));
     }
 
-    public SimpleTriplePattern(BlankNodeOrIri subject, Iri predicate, Variable object) {
+    public SimpleTriplePattern(BlankNodeOrIRI subject, IRI predicate, Variable object) {
         this(new ResourceOrVariable(subject), new UriRefOrVariable(predicate),
                 new ResourceOrVariable(object));
     }
 
-    public SimpleTriplePattern(Variable subject, Variable predicate, RdfTerm object) {
+    public SimpleTriplePattern(Variable subject, Variable predicate, RDFTerm object) {
         this(new ResourceOrVariable(subject), new UriRefOrVariable(predicate),
                 new ResourceOrVariable(object));
     }
 
-    public SimpleTriplePattern(BlankNodeOrIri subject, Variable predicate, RdfTerm object) {
+    public SimpleTriplePattern(BlankNodeOrIRI subject, Variable predicate, RDFTerm object) {
         this(new ResourceOrVariable(subject), new UriRefOrVariable(predicate),
                 new ResourceOrVariable(object));
     }
 
-    public SimpleTriplePattern(Variable subject, Iri predicate, RdfTerm object) {
+    public SimpleTriplePattern(Variable subject, IRI predicate, RDFTerm object) {
         this(new ResourceOrVariable(subject), new UriRefOrVariable(predicate),
                 new ResourceOrVariable(object));
     }
 
-    public SimpleTriplePattern(BlankNodeOrIri subject, Iri predicate, RdfTerm object) {
+    public SimpleTriplePattern(BlankNodeOrIRI subject, IRI predicate, RDFTerm object) {
         this(new ResourceOrVariable(subject), new UriRefOrVariable(predicate),
                 new ResourceOrVariable(object));
     }

http://git-wip-us.apache.org/repos/asf/clerezza/blob/60d73ea7/rdf/core/src/main/java/org/apache/clerezza/rdf/core/sparql/update/Update.java
----------------------------------------------------------------------
diff --git a/rdf/core/src/main/java/org/apache/clerezza/rdf/core/sparql/update/Update.java b/rdf/core/src/main/java/org/apache/clerezza/rdf/core/sparql/update/Update.java
index 4c13613..944f3b9 100644
--- a/rdf/core/src/main/java/org/apache/clerezza/rdf/core/sparql/update/Update.java
+++ b/rdf/core/src/main/java/org/apache/clerezza/rdf/core/sparql/update/Update.java
@@ -19,7 +19,7 @@
 package org.apache.clerezza.rdf.core.sparql.update;
 
 import java.util.Set;
-import org.apache.clerezza.commons.rdf.Iri;
+import org.apache.clerezza.commons.rdf.IRI;
 import org.apache.clerezza.rdf.core.access.TcProvider;
 
 /**
@@ -38,7 +38,7 @@ public interface Update {
      *      the specified tcProvider is used to get the named graphs referred in the SPARQL {@link Update}.
      * @return a set of graphs referred in the {@link Update}.
      */
-    public Set<Iri> getReferredGraphs(Iri defaultGraph, TcProvider tcProvider);
+    public Set<IRI> getReferredGraphs(IRI defaultGraph, TcProvider tcProvider);
 
     public void addOperation(UpdateOperation updateOperation);
 

http://git-wip-us.apache.org/repos/asf/clerezza/blob/60d73ea7/rdf/core/src/main/java/org/apache/clerezza/rdf/core/sparql/update/UpdateOperation.java
----------------------------------------------------------------------
diff --git a/rdf/core/src/main/java/org/apache/clerezza/rdf/core/sparql/update/UpdateOperation.java b/rdf/core/src/main/java/org/apache/clerezza/rdf/core/sparql/update/UpdateOperation.java
index ba6b54e..b09d305 100644
--- a/rdf/core/src/main/java/org/apache/clerezza/rdf/core/sparql/update/UpdateOperation.java
+++ b/rdf/core/src/main/java/org/apache/clerezza/rdf/core/sparql/update/UpdateOperation.java
@@ -19,7 +19,7 @@
 package org.apache.clerezza.rdf.core.sparql.update;
 
 import java.util.Set;
-import org.apache.clerezza.commons.rdf.Iri;
+import org.apache.clerezza.commons.rdf.IRI;
 import org.apache.clerezza.rdf.core.access.TcProvider;
 
 /**
@@ -41,7 +41,7 @@ public interface UpdateOperation {
      *      the specified tcProvider is used to get the named graphs referred as input graphs in this operation.
      * @return a set of graphs referred as input graphs in this operation.
      */
-    public Set<Iri> getInputGraphs(Iri defaultGraph, TcProvider tcProvider);
+    public Set<IRI> getInputGraphs(IRI defaultGraph, TcProvider tcProvider);
 
     /**
      * 
@@ -52,5 +52,5 @@ public interface UpdateOperation {
      *      the specified tcProvider is used to get the named graphs referred as destination graphs in this operation.
      * @return a set of graphs referred as destination graphs in this operation.
      */
-    public Set<Iri> getDestinationGraphs(Iri defaultGraph, TcProvider tcProvider);
+    public Set<IRI> getDestinationGraphs(IRI defaultGraph, TcProvider tcProvider);
 }

http://git-wip-us.apache.org/repos/asf/clerezza/blob/60d73ea7/rdf/core/src/main/java/org/apache/clerezza/rdf/core/sparql/update/impl/BaseUpdateOperation.java
----------------------------------------------------------------------
diff --git a/rdf/core/src/main/java/org/apache/clerezza/rdf/core/sparql/update/impl/BaseUpdateOperation.java b/rdf/core/src/main/java/org/apache/clerezza/rdf/core/sparql/update/impl/BaseUpdateOperation.java
index 5aa0bdd..bc12710 100644
--- a/rdf/core/src/main/java/org/apache/clerezza/rdf/core/sparql/update/impl/BaseUpdateOperation.java
+++ b/rdf/core/src/main/java/org/apache/clerezza/rdf/core/sparql/update/impl/BaseUpdateOperation.java
@@ -20,7 +20,7 @@ package org.apache.clerezza.rdf.core.sparql.update.impl;
 
 import java.util.HashSet;
 import java.util.Set;
-import org.apache.clerezza.commons.rdf.Iri;
+import org.apache.clerezza.commons.rdf.IRI;
 import org.apache.clerezza.rdf.core.access.TcProvider;
 import org.apache.clerezza.rdf.core.sparql.update.UpdateOperation;
 
@@ -30,8 +30,8 @@ import org.apache.clerezza.rdf.core.sparql.update.UpdateOperation;
  */
 public abstract class BaseUpdateOperation implements UpdateOperation {
 
-    protected Set<Iri> inputGraphs = new HashSet<Iri>();
-    protected Set<Iri> destinationGraphs = new HashSet<Iri>();
+    protected Set<IRI> inputGraphs = new HashSet<IRI>();
+    protected Set<IRI> destinationGraphs = new HashSet<IRI>();
     protected GraphSpec inputGraphSpec = GraphSpec.GRAPH;
     protected GraphSpec destinationGraphSpec = GraphSpec.GRAPH;
 
@@ -52,14 +52,14 @@ public abstract class BaseUpdateOperation implements UpdateOperation {
     }
 
     @Override
-    public Set<Iri> getInputGraphs(Iri defaultGraph, TcProvider tcProvider) {
+    public Set<IRI> getInputGraphs(IRI defaultGraph, TcProvider tcProvider) {
         return getGraphs(defaultGraph, tcProvider, inputGraphSpec, inputGraphs);
     }
 
-    private Set<Iri> getGraphs(Iri defaultGraph, TcProvider tcProvider, GraphSpec graphSpec, Set<Iri> graphs) {
+    private Set<IRI> getGraphs(IRI defaultGraph, TcProvider tcProvider, GraphSpec graphSpec, Set<IRI> graphs) {
         switch (graphSpec) {
             case DEFAULT:
-                Set<Iri> result = new HashSet<Iri>();
+                Set<IRI> result = new HashSet<IRI>();
                 result.add(defaultGraph);
                 return result;
             case NAMED:
@@ -71,15 +71,15 @@ public abstract class BaseUpdateOperation implements UpdateOperation {
     }
 
     @Override
-    public Set<Iri> getDestinationGraphs(Iri defaultGraph, TcProvider tcProvider) {
+    public Set<IRI> getDestinationGraphs(IRI defaultGraph, TcProvider tcProvider) {
         return getGraphs(defaultGraph, tcProvider, destinationGraphSpec, destinationGraphs);
     }
 
-    public void addInputGraph(Iri ImmutableGraph) {
+    public void addInputGraph(IRI ImmutableGraph) {
         inputGraphs.add(ImmutableGraph);
     }
 
-    public void addDestinationGraph(Iri ImmutableGraph) {
+    public void addDestinationGraph(IRI ImmutableGraph) {
         destinationGraphs.add(ImmutableGraph);
     }
 }

http://git-wip-us.apache.org/repos/asf/clerezza/blob/60d73ea7/rdf/core/src/main/java/org/apache/clerezza/rdf/core/sparql/update/impl/ClearOrDropOperation.java
----------------------------------------------------------------------
diff --git a/rdf/core/src/main/java/org/apache/clerezza/rdf/core/sparql/update/impl/ClearOrDropOperation.java b/rdf/core/src/main/java/org/apache/clerezza/rdf/core/sparql/update/impl/ClearOrDropOperation.java
index eb68e56..2b356af 100644
--- a/rdf/core/src/main/java/org/apache/clerezza/rdf/core/sparql/update/impl/ClearOrDropOperation.java
+++ b/rdf/core/src/main/java/org/apache/clerezza/rdf/core/sparql/update/impl/ClearOrDropOperation.java
@@ -19,7 +19,7 @@
 package org.apache.clerezza.rdf.core.sparql.update.impl;
 
 import java.util.Set;
-import org.apache.clerezza.commons.rdf.Iri;
+import org.apache.clerezza.commons.rdf.IRI;
 import org.apache.clerezza.rdf.core.access.TcProvider;
 import org.apache.clerezza.rdf.core.sparql.update.UpdateOperation;
 
@@ -43,14 +43,14 @@ public class ClearOrDropOperation extends BaseUpdateOperation {
         return silent;
     }
 
-    public void setDestinationGraph(Iri destination) {
+    public void setDestinationGraph(IRI destination) {
         destinationGraphSpec = UpdateOperation.GraphSpec.GRAPH;
         destinationGraphs.clear();
         destinationGraphs.add(destination);
     }
 
-    public Iri getDestinationGraph(Iri defaultGraph, TcProvider tcProvider) {
-        Set<Iri> result = getDestinationGraphs(defaultGraph, tcProvider);
+    public IRI getDestinationGraph(IRI defaultGraph, TcProvider tcProvider) {
+        Set<IRI> result = getDestinationGraphs(defaultGraph, tcProvider);
         if (result.isEmpty()) {
             return null;
         } else {

http://git-wip-us.apache.org/repos/asf/clerezza/blob/60d73ea7/rdf/core/src/main/java/org/apache/clerezza/rdf/core/sparql/update/impl/CreateOperation.java
----------------------------------------------------------------------
diff --git a/rdf/core/src/main/java/org/apache/clerezza/rdf/core/sparql/update/impl/CreateOperation.java b/rdf/core/src/main/java/org/apache/clerezza/rdf/core/sparql/update/impl/CreateOperation.java
index 3196043..090f423 100644
--- a/rdf/core/src/main/java/org/apache/clerezza/rdf/core/sparql/update/impl/CreateOperation.java
+++ b/rdf/core/src/main/java/org/apache/clerezza/rdf/core/sparql/update/impl/CreateOperation.java
@@ -18,7 +18,7 @@
  */
 package org.apache.clerezza.rdf.core.sparql.update.impl;
 
-import org.apache.clerezza.commons.rdf.Iri;
+import org.apache.clerezza.commons.rdf.IRI;
 
 /**
  *
@@ -40,12 +40,12 @@ public class CreateOperation extends BaseUpdateOperation {
         return silent;
     }
 
-    public void setDestinationGraph(Iri destination) {
+    public void setDestinationGraph(IRI destination) {
         destinationGraphs.clear();
         destinationGraphs.add(destination);
     }
 
-    public Iri getDestinationGraph() {
+    public IRI getDestinationGraph() {
         if (destinationGraphs.isEmpty()) {
             return null;
         } else {

http://git-wip-us.apache.org/repos/asf/clerezza/blob/60d73ea7/rdf/core/src/main/java/org/apache/clerezza/rdf/core/sparql/update/impl/LoadOperation.java
----------------------------------------------------------------------
diff --git a/rdf/core/src/main/java/org/apache/clerezza/rdf/core/sparql/update/impl/LoadOperation.java b/rdf/core/src/main/java/org/apache/clerezza/rdf/core/sparql/update/impl/LoadOperation.java
index f0de8fc..8dfc69f 100644
--- a/rdf/core/src/main/java/org/apache/clerezza/rdf/core/sparql/update/impl/LoadOperation.java
+++ b/rdf/core/src/main/java/org/apache/clerezza/rdf/core/sparql/update/impl/LoadOperation.java
@@ -19,7 +19,7 @@
 package org.apache.clerezza.rdf.core.sparql.update.impl;
 
 import java.util.Set;
-import org.apache.clerezza.commons.rdf.Iri;
+import org.apache.clerezza.commons.rdf.IRI;
 import org.apache.clerezza.rdf.core.sparql.update.UpdateOperation;
 
 /**
@@ -31,11 +31,11 @@ import org.apache.clerezza.rdf.core.sparql.update.UpdateOperation;
  */
 public class LoadOperation extends SimpleUpdateOperation {
 
-    public void setSource(Iri source) {
+    public void setSource(IRI source) {
         setInputGraph(source);
     }
 
-    public Iri getSource() {
+    public IRI getSource() {
         return getInputGraph(null);
     }
 }

http://git-wip-us.apache.org/repos/asf/clerezza/blob/60d73ea7/rdf/core/src/main/java/org/apache/clerezza/rdf/core/sparql/update/impl/ModifyOperation.java
----------------------------------------------------------------------
diff --git a/rdf/core/src/main/java/org/apache/clerezza/rdf/core/sparql/update/impl/ModifyOperation.java b/rdf/core/src/main/java/org/apache/clerezza/rdf/core/sparql/update/impl/ModifyOperation.java
index c3ca5ce..97ce39b 100644
--- a/rdf/core/src/main/java/org/apache/clerezza/rdf/core/sparql/update/impl/ModifyOperation.java
+++ b/rdf/core/src/main/java/org/apache/clerezza/rdf/core/sparql/update/impl/ModifyOperation.java
@@ -20,7 +20,7 @@ package org.apache.clerezza.rdf.core.sparql.update.impl;
 
 import java.util.HashSet;
 import java.util.Set;
-import org.apache.clerezza.commons.rdf.Iri;
+import org.apache.clerezza.commons.rdf.IRI;
 import org.apache.clerezza.rdf.core.access.TcProvider;
 import org.apache.clerezza.rdf.core.sparql.query.GroupGraphPattern;
 import org.apache.clerezza.rdf.core.sparql.query.impl.SimpleDataSet;
@@ -36,13 +36,13 @@ import org.apache.clerezza.rdf.core.sparql.update.UpdateOperation;
  * @author hasan
  */
 public class ModifyOperation implements UpdateOperation {
-    private Iri fallbackGraph = null;
+    private IRI fallbackGraph = null;
     private UpdateOperationWithQuads deleteOperation = null;
     private UpdateOperationWithQuads insertOperation = null;
     private SimpleDataSet dataSet = null;
     private GroupGraphPattern queryPattern = null;
 
-    public void setFallbackGraph(Iri fallbackGraph) {
+    public void setFallbackGraph(IRI fallbackGraph) {
         this.fallbackGraph = fallbackGraph;
     }
 
@@ -58,14 +58,14 @@ public class ModifyOperation implements UpdateOperation {
         this.dataSet = dataSet;
     }
 
-    public void addGraphToDataSet(Iri ImmutableGraph) {
+    public void addGraphToDataSet(IRI ImmutableGraph) {
         if (dataSet == null) {
             dataSet = new SimpleDataSet();
         }
         dataSet.addDefaultGraph(ImmutableGraph);
     }
 
-    public void addNamedGraphToDataSet(Iri namedGraph) {
+    public void addNamedGraphToDataSet(IRI namedGraph) {
         if (dataSet == null) {
             dataSet = new SimpleDataSet();
         }
@@ -77,8 +77,8 @@ public class ModifyOperation implements UpdateOperation {
     }
 
     @Override
-    public Set<Iri> getInputGraphs(Iri defaultGraph, TcProvider tcProvider) {
-        Set<Iri> graphs = new HashSet<Iri>();
+    public Set<IRI> getInputGraphs(IRI defaultGraph, TcProvider tcProvider) {
+        Set<IRI> graphs = new HashSet<IRI>();
         if (dataSet != null) {
             graphs.addAll(dataSet.getDefaultGraphs());
             graphs.addAll(dataSet.getNamedGraphs());
@@ -97,9 +97,9 @@ public class ModifyOperation implements UpdateOperation {
     }
 
     @Override
-    public Set<Iri> getDestinationGraphs(Iri defaultGraph, TcProvider tcProvider) {
-        Set<Iri> graphs = new HashSet<Iri>();
-        Iri dfltGraph = (fallbackGraph != null) ? fallbackGraph : defaultGraph;
+    public Set<IRI> getDestinationGraphs(IRI defaultGraph, TcProvider tcProvider) {
+        Set<IRI> graphs = new HashSet<IRI>();
+        IRI dfltGraph = (fallbackGraph != null) ? fallbackGraph : defaultGraph;
         if (deleteOperation != null) {
             graphs.addAll(deleteOperation.getDestinationGraphs(dfltGraph, tcProvider));
         }

http://git-wip-us.apache.org/repos/asf/clerezza/blob/60d73ea7/rdf/core/src/main/java/org/apache/clerezza/rdf/core/sparql/update/impl/SimpleUpdate.java
----------------------------------------------------------------------
diff --git a/rdf/core/src/main/java/org/apache/clerezza/rdf/core/sparql/update/impl/SimpleUpdate.java b/rdf/core/src/main/java/org/apache/clerezza/rdf/core/sparql/update/impl/SimpleUpdate.java
index 626bfc5..c91ee95 100644
--- a/rdf/core/src/main/java/org/apache/clerezza/rdf/core/sparql/update/impl/SimpleUpdate.java
+++ b/rdf/core/src/main/java/org/apache/clerezza/rdf/core/sparql/update/impl/SimpleUpdate.java
@@ -22,7 +22,7 @@ import java.util.ArrayList;
 import java.util.HashSet;
 import java.util.List;
 import java.util.Set;
-import org.apache.clerezza.commons.rdf.Iri;
+import org.apache.clerezza.commons.rdf.IRI;
 import org.apache.clerezza.rdf.core.access.TcProvider;
 import org.apache.clerezza.rdf.core.sparql.update.Update;
 import org.apache.clerezza.rdf.core.sparql.update.UpdateOperation;
@@ -35,8 +35,8 @@ public class SimpleUpdate implements Update {
     protected List<UpdateOperation> operations = new ArrayList<UpdateOperation>();
 
     @Override
-    public Set<Iri> getReferredGraphs(Iri defaultGraph, TcProvider tcProvider) {
-        Set<Iri> referredGraphs = new HashSet<Iri>();
+    public Set<IRI> getReferredGraphs(IRI defaultGraph, TcProvider tcProvider) {
+        Set<IRI> referredGraphs = new HashSet<IRI>();
         for (UpdateOperation operation : operations) {
             referredGraphs.addAll(operation.getInputGraphs(defaultGraph, tcProvider));
             referredGraphs.addAll(operation.getDestinationGraphs(defaultGraph, tcProvider));

http://git-wip-us.apache.org/repos/asf/clerezza/blob/60d73ea7/rdf/core/src/main/java/org/apache/clerezza/rdf/core/sparql/update/impl/SimpleUpdateOperation.java
----------------------------------------------------------------------
diff --git a/rdf/core/src/main/java/org/apache/clerezza/rdf/core/sparql/update/impl/SimpleUpdateOperation.java b/rdf/core/src/main/java/org/apache/clerezza/rdf/core/sparql/update/impl/SimpleUpdateOperation.java
index 72c87d4..6042536 100644
--- a/rdf/core/src/main/java/org/apache/clerezza/rdf/core/sparql/update/impl/SimpleUpdateOperation.java
+++ b/rdf/core/src/main/java/org/apache/clerezza/rdf/core/sparql/update/impl/SimpleUpdateOperation.java
@@ -19,7 +19,7 @@
 package org.apache.clerezza.rdf.core.sparql.update.impl;
 
 import java.util.Set;
-import org.apache.clerezza.commons.rdf.Iri;
+import org.apache.clerezza.commons.rdf.IRI;
 import org.apache.clerezza.rdf.core.sparql.update.UpdateOperation;
 
 /**
@@ -44,14 +44,14 @@ public class SimpleUpdateOperation extends BaseUpdateOperation {
         return silent;
     }
 
-    public void setInputGraph(Iri source) {
+    public void setInputGraph(IRI source) {
         inputGraphSpec = UpdateOperation.GraphSpec.GRAPH;
         inputGraphs.clear();
         inputGraphs.add(source);
     }
 
-    public Iri getInputGraph(Iri defaultGraph) {
-        Set<Iri> result = getInputGraphs(defaultGraph, null);
+    public IRI getInputGraph(IRI defaultGraph) {
+        Set<IRI> result = getInputGraphs(defaultGraph, null);
         if (result.isEmpty()) {
             return null;
         } else {
@@ -59,14 +59,14 @@ public class SimpleUpdateOperation extends BaseUpdateOperation {
         }
     }
 
-    public void setDestinationGraph(Iri destination) {
+    public void setDestinationGraph(IRI destination) {
         destinationGraphSpec = UpdateOperation.GraphSpec.GRAPH;
         destinationGraphs.clear();
         destinationGraphs.add(destination);
     }
 
-    public Iri getDestinationGraph(Iri defaultGraph) {
-        Set<Iri> result = getDestinationGraphs(defaultGraph, null);
+    public IRI getDestinationGraph(IRI defaultGraph) {
+        Set<IRI> result = getDestinationGraphs(defaultGraph, null);
         if (result.isEmpty()) {
             return null;
         } else {

http://git-wip-us.apache.org/repos/asf/clerezza/blob/60d73ea7/rdf/core/src/main/java/org/apache/clerezza/rdf/core/sparql/update/impl/UpdateOperationWithQuads.java
----------------------------------------------------------------------
diff --git a/rdf/core/src/main/java/org/apache/clerezza/rdf/core/sparql/update/impl/UpdateOperationWithQuads.java b/rdf/core/src/main/java/org/apache/clerezza/rdf/core/sparql/update/impl/UpdateOperationWithQuads.java
index a0a412d..5b2ea57 100644
--- a/rdf/core/src/main/java/org/apache/clerezza/rdf/core/sparql/update/impl/UpdateOperationWithQuads.java
+++ b/rdf/core/src/main/java/org/apache/clerezza/rdf/core/sparql/update/impl/UpdateOperationWithQuads.java
@@ -22,7 +22,7 @@ import java.util.ArrayList;
 import java.util.HashSet;
 import java.util.List;
 import java.util.Set;
-import org.apache.clerezza.commons.rdf.Iri;
+import org.apache.clerezza.commons.rdf.IRI;
 import org.apache.clerezza.rdf.core.access.TcProvider;
 import org.apache.clerezza.rdf.core.sparql.query.TriplePattern;
 import org.apache.clerezza.rdf.core.sparql.query.UriRefOrVariable;
@@ -57,13 +57,13 @@ public class UpdateOperationWithQuads implements UpdateOperation {
     }
 
     @Override
-    public Set<Iri> getInputGraphs(Iri defaultGraph, TcProvider tcProvider) {
-        return new HashSet<Iri>();
+    public Set<IRI> getInputGraphs(IRI defaultGraph, TcProvider tcProvider) {
+        return new HashSet<IRI>();
     }
 
     @Override
-    public Set<Iri> getDestinationGraphs(Iri defaultGraph, TcProvider tcProvider) {
-        Set<Iri> graphs = new HashSet<Iri>();
+    public Set<IRI> getDestinationGraphs(IRI defaultGraph, TcProvider tcProvider) {
+        Set<IRI> graphs = new HashSet<IRI>();
         if (defaultQuad != null) {
             graphs.add(defaultGraph);
         }

http://git-wip-us.apache.org/repos/asf/clerezza/blob/60d73ea7/rdf/core/src/main/javacc/org/apache/clerezza/rdf/core/sparql/JavaCCGeneratedQueryParser.jj
----------------------------------------------------------------------
diff --git a/rdf/core/src/main/javacc/org/apache/clerezza/rdf/core/sparql/JavaCCGeneratedQueryParser.jj b/rdf/core/src/main/javacc/org/apache/clerezza/rdf/core/sparql/JavaCCGeneratedQueryParser.jj
index f8711c6..c41426e 100644
--- a/rdf/core/src/main/javacc/org/apache/clerezza/rdf/core/sparql/JavaCCGeneratedQueryParser.jj
+++ b/rdf/core/src/main/javacc/org/apache/clerezza/rdf/core/sparql/JavaCCGeneratedQueryParser.jj
@@ -42,8 +42,8 @@ import java.util.regex.Pattern;
 import org.apache.clerezza.commons.rdf.BlankNode;
 import org.apache.clerezza.commons.rdf.Language;
 import org.apache.clerezza.commons.rdf.Literal;
-import org.apache.clerezza.commons.rdf.RdfTerm;
-import org.apache.clerezza.commons.rdf.Iri;
+import org.apache.clerezza.commons.rdf.RDFTerm;
+import org.apache.clerezza.commons.rdf.IRI;
 import org.apache.clerezza.rdf.core.LiteralFactory;
 import org.apache.clerezza.commons.rdf.impl.utils.PlainLiteralImpl;
 import org.apache.clerezza.commons.rdf.impl.utils.TypedLiteralImpl;
@@ -81,14 +81,14 @@ import org.apache.clerezza.rdf.core.sparql.query.impl.SimpleTriplePattern;
  */
 class JavaCCGeneratedQueryParser {
 
-	private static final Iri RDF_TYPE =
-		new Iri("http://www.w3.org/1999/02/22-rdf-syntax-ns#type");
-	private static final Iri RDF_FIRST =
-		new Iri("http://www.w3.org/1999/02/22-rdf-syntax-ns#first");
-	private static final Iri RDF_REST =
-		new Iri("http://www.w3.org/1999/02/22-rdf-syntax-ns#rest");
-	private static final Iri RDF_NIL =
-		new Iri("http://www.w3.org/1999/02/22-rdf-syntax-ns#nil");
+	private static final IRI RDF_TYPE =
+		new IRI("http://www.w3.org/1999/02/22-rdf-syntax-ns#type");
+	private static final IRI RDF_FIRST =
+		new IRI("http://www.w3.org/1999/02/22-rdf-syntax-ns#first");
+	private static final IRI RDF_REST =
+		new IRI("http://www.w3.org/1999/02/22-rdf-syntax-ns#rest");
+	private static final IRI RDF_NIL =
+		new IRI("http://www.w3.org/1999/02/22-rdf-syntax-ns#nil");
 
 	/** A RegEx pattern for separating out a namespace from a prefixed name. */
 	private static final Pattern pfxNamePattern = Pattern.compile("([^:]*):(.*)");
@@ -200,16 +200,16 @@ class JavaCCGeneratedQueryParser {
 		return bNode;
 	}
 
-	private Iri createUriRef(String r) throws ParseException {
+	private IRI createUriRef(String r) throws ParseException {
 		// Create an IRI directly if the string does not start with a prefix
 		Matcher m = pfxNamePattern.matcher(r);
 		if (!m.matches()) {
 			// either a normal IRI, or one with a BASE
-			return isRelative(r) ? new Iri(base + r) : new Iri(r);
+			return isRelative(r) ? new IRI(base + r) : new IRI(r);
 		}
 		// extract the prefix, and attempt to convert to a URI before creating the reference
 		String ns = prefixes.get(m.group(1));
-		return ns == null ? new Iri(r) : new Iri(ns + m.group(2));
+		return ns == null ? new IRI(r) : new IRI(ns + m.group(2));
 	}
 
 	/**
@@ -386,7 +386,7 @@ private void DatasetClause() : {} {
 
 /* [10]    DefaultGraphClause    ::=    SourceSelector */
 private void DefaultGraphClause() : {
-	Iri defaultGraph; } {
+	IRI defaultGraph; } {
 
 	defaultGraph=SourceSelector() {
 	((SimpleQuery) query).addDefaultGraph(defaultGraph); }
@@ -394,15 +394,15 @@ private void DefaultGraphClause() : {
 
 /* [11]    NamedGraphClause    ::=    'NAMED' SourceSelector */
 private void NamedGraphClause() : {
-	Iri namedGraph; } {
+	IRI namedGraph; } {
 
 	<NAMED> namedGraph=SourceSelector() {
 	((SimpleQuery) query).addNamedGraph(namedGraph); }
 }
 
 /* [12]    SourceSelector    ::=    IRIref */
-private Iri SourceSelector() : {
-	Iri graph; } {
+private IRI SourceSelector() : {
+	IRI graph; } {
 
 	graph=IRIref() {
 	return graph; }
@@ -572,7 +572,7 @@ private Expression Constraint() : {
 
 /* [28]    FunctionCall    ::=    IRIref ArgList */
 private FunctionCall FunctionCall() : {
-	Iri name;
+	IRI name;
 	List<Expression> arguments;} {
 
 	name=IRIref()
@@ -761,14 +761,14 @@ private ResourceOrVariable VarOrTerm() : {
 /* [43]    VarOrIRIref    ::=    Var | IRIref */
 private UriRefOrVariable VarOrIRIref() : {
 	Variable var;
-	Iri Iri; } {
+	IRI IRI; } {
 
 	(
 	var=Var() {
 	return new UriRefOrVariable(var); }
 	|
-	Iri=IRIref() {
-	return new UriRefOrVariable(Iri); }
+	IRI=IRIref() {
+	return new UriRefOrVariable(IRI); }
 	)
 }
 
@@ -783,7 +783,7 @@ private Variable Var() : {
 /* [45]    GraphTerm    ::=    IRIref |  RDFLiteral |  NumericLiteral |  BooleanLiteral |  BlankNode |  NIL */
 private ResourceOrVariable GraphTerm() : {
 	ResourceOrVariable bNode = null;
-	RdfTerm r = null; } {
+	RDFTerm r = null; } {
 
 	(r=IRIref() | r=RDFLiteral() | r=NumericLiteral() | r=BooleanLiteral() | bNode=BlankNode() | <NIL> {
 		r = RDF_NIL; }) {
@@ -1046,22 +1046,22 @@ private BuiltInCall RegexExpression() : {
 
 /* [59]    IRIrefOrFunction    ::=    IRIref ArgList? */
 private Expression IRIrefOrFunction() : {
-	Iri Iri;
+	IRI IRI;
 	List<Expression> args; } {
 
-	Iri=IRIref()
+	IRI=IRIref()
 	(
 		args=ArgList() {
-		return new FunctionCall(Iri, args); }
+		return new FunctionCall(IRI, args); }
 	)? {
-	return new UriRefExpression(Iri); }
+	return new UriRefExpression(IRI); }
 }
 
 /* [60]    RDFLiteral    ::=    String ( LANGTAG | ( '^^' IRIref ) )? */
 private Literal RDFLiteral() : {
 	Token t;
 	String s;
-	Iri type; } {
+	IRI type; } {
 
 	s = String()
 	(
@@ -1143,19 +1143,19 @@ private String String() : {
 }
 
 /* [67]    IRIref    ::=    IRI_REF |  PrefixedName */
-private Iri IRIref() : {
-	Iri Iri;
+private IRI IRIref() : {
+	IRI IRI;
 	Token t; } {
 
 	t=<IRI_REF> {
 	return createUriRef(unquote(t.image)); }
 	|
-	Iri=PrefixedName() {
-	return Iri; }
+	IRI=PrefixedName() {
+	return IRI; }
 }
 
 /* [68]    PrefixedName    ::=    PNAME_LN | PNAME_NS */
-private Iri PrefixedName() : {
+private IRI PrefixedName() : {
 	Token t; } {
 
 	( t=<PNAME_LN> | t=<PNAME_NS> ) {