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Posted to commits@lucene.apache.org by ch...@apache.org on 2011/07/13 11:04:54 UTC

svn commit: r1145916 [1/3] - in /lucene/dev/trunk/lucene/contrib: ./ queries/src/java/org/apache/lucene/search/ queries/src/java/org/apache/lucene/search/regex/ queries/src/java/org/apache/lucene/search/similar/ queries/src/test/org/apache/lucene/searc...

Author: chrism
Date: Wed Jul 13 09:04:52 2011
New Revision: 1145916

URL: http://svn.apache.org/viewvc?rev=1145916&view=rev
Log:
LUCENE-3308: Code cleanup of queries module candidate contrib/queries

Modified:
    lucene/dev/trunk/lucene/contrib/CHANGES.txt
    lucene/dev/trunk/lucene/contrib/queries/src/java/org/apache/lucene/search/BooleanFilter.java
    lucene/dev/trunk/lucene/contrib/queries/src/java/org/apache/lucene/search/BoostingQuery.java
    lucene/dev/trunk/lucene/contrib/queries/src/java/org/apache/lucene/search/ChainedFilter.java
    lucene/dev/trunk/lucene/contrib/queries/src/java/org/apache/lucene/search/DuplicateFilter.java
    lucene/dev/trunk/lucene/contrib/queries/src/java/org/apache/lucene/search/FilterClause.java
    lucene/dev/trunk/lucene/contrib/queries/src/java/org/apache/lucene/search/TermsFilter.java
    lucene/dev/trunk/lucene/contrib/queries/src/java/org/apache/lucene/search/regex/JakartaRegexpCapabilities.java
    lucene/dev/trunk/lucene/contrib/queries/src/java/org/apache/lucene/search/regex/JavaUtilRegexCapabilities.java
    lucene/dev/trunk/lucene/contrib/queries/src/java/org/apache/lucene/search/regex/RegexQuery.java
    lucene/dev/trunk/lucene/contrib/queries/src/java/org/apache/lucene/search/regex/RegexQueryCapable.java
    lucene/dev/trunk/lucene/contrib/queries/src/java/org/apache/lucene/search/regex/RegexTermsEnum.java
    lucene/dev/trunk/lucene/contrib/queries/src/java/org/apache/lucene/search/similar/MoreLikeThis.java
    lucene/dev/trunk/lucene/contrib/queries/src/java/org/apache/lucene/search/similar/MoreLikeThisQuery.java
    lucene/dev/trunk/lucene/contrib/queries/src/test/org/apache/lucene/search/BooleanFilterTest.java
    lucene/dev/trunk/lucene/contrib/queries/src/test/org/apache/lucene/search/DuplicateFilterTest.java
    lucene/dev/trunk/lucene/contrib/queries/src/test/org/apache/lucene/search/FuzzyLikeThisQueryTest.java
    lucene/dev/trunk/lucene/contrib/queries/src/test/org/apache/lucene/search/TermsFilterTest.java
    lucene/dev/trunk/lucene/contrib/xml-query-parser/src/java/org/apache/lucene/xmlparser/builders/DuplicateFilterBuilder.java

Modified: lucene/dev/trunk/lucene/contrib/CHANGES.txt
URL: http://svn.apache.org/viewvc/lucene/dev/trunk/lucene/contrib/CHANGES.txt?rev=1145916&r1=1145915&r2=1145916&view=diff
==============================================================================
--- lucene/dev/trunk/lucene/contrib/CHANGES.txt (original)
+++ lucene/dev/trunk/lucene/contrib/CHANGES.txt Wed Jul 13 09:04:52 2011
@@ -47,6 +47,9 @@ API Changes
    Instead, use SimilarityProvider to return different SweetSpotSimilaritys
    for different fields, this way all parameters (such as TF factors) can be 
    customized on a per-field basis.  (Robert Muir)
+
+ * LUCENE-3308: DuplicateFilter keepMode and processingMode have been converted to
+   enums DuplicateFilter.KeepMode and DuplicateFilter.ProcessingMode repsectively.
    
 Bug Fixes
 

Modified: lucene/dev/trunk/lucene/contrib/queries/src/java/org/apache/lucene/search/BooleanFilter.java
URL: http://svn.apache.org/viewvc/lucene/dev/trunk/lucene/contrib/queries/src/java/org/apache/lucene/search/BooleanFilter.java?rev=1145916&r1=1145915&r2=1145916&view=diff
==============================================================================
--- lucene/dev/trunk/lucene/contrib/queries/src/java/org/apache/lucene/search/BooleanFilter.java (original)
+++ lucene/dev/trunk/lucene/contrib/queries/src/java/org/apache/lucene/search/BooleanFilter.java Wed Jul 13 09:04:52 2011
@@ -19,6 +19,7 @@ package org.apache.lucene.search;
 
 import java.io.IOException;
 import java.util.ArrayList;
+import java.util.List;
 
 import org.apache.lucene.index.IndexReader;
 import org.apache.lucene.index.IndexReader.AtomicReaderContext;
@@ -36,25 +37,18 @@ import org.apache.lucene.util.OpenBitSet
  * The resulting Filter is AND'd with the MUST Filters
  */
 
-public class BooleanFilter extends Filter
-{
-  ArrayList<Filter> shouldFilters = null;
-  ArrayList<Filter> notFilters = null;
-  ArrayList<Filter> mustFilters = null;
-  
-  private DocIdSetIterator getDISI(ArrayList<Filter> filters, int index, AtomicReaderContext context)
-  throws IOException
-  {
-    return filters.get(index).getDocIdSet(context).iterator();
-  }
+public class BooleanFilter extends Filter {
+
+  List<Filter> shouldFilters = null;
+  List<Filter> notFilters = null;
+  List<Filter> mustFilters = null;
 
   /**
    * Returns the a DocIdSetIterator representing the Boolean composition
    * of the filters that have been added.
    */
   @Override
-  public DocIdSet getDocIdSet(AtomicReaderContext context) throws IOException
-  {
+  public DocIdSet getDocIdSet(AtomicReaderContext context) throws IOException {
     OpenBitSetDISI res = null;
     final IndexReader reader = context.reader;
     if (shouldFilters != null) {
@@ -73,7 +67,7 @@ public class BooleanFilter extends Filte
       }
     }
     
-    if (notFilters!=null) {
+    if (notFilters != null) {
       for (int i = 0; i < notFilters.size(); i++) {
         if (res == null) {
           res = new OpenBitSetDISI(getDISI(notFilters, i, context), reader.maxDoc());
@@ -90,7 +84,7 @@ public class BooleanFilter extends Filte
       }
     }
     
-    if (mustFilters!=null) {
+    if (mustFilters != null) {
       for (int i = 0; i < mustFilters.size(); i++) {
         if (res == null) {
           res = new OpenBitSetDISI(getDISI(mustFilters, i, context), reader.maxDoc());
@@ -105,53 +99,47 @@ public class BooleanFilter extends Filte
         }
       }
     }
-    
-    if (res !=null)
-      return res;
 
-    return DocIdSet.EMPTY_DOCIDSET;
+    return res != null ? res : DocIdSet.EMPTY_DOCIDSET;
   }
 
   /**
   * Adds a new FilterClause to the Boolean Filter container
   * @param filterClause A FilterClause object containing a Filter and an Occur parameter
   */
-  public void add(FilterClause filterClause)
-  {
+  public void add(FilterClause filterClause) {
     if (filterClause.getOccur().equals(Occur.MUST)) {
-      if (mustFilters==null) {
-        mustFilters=new ArrayList<Filter>();
+      if (mustFilters == null) {
+        mustFilters = new ArrayList<Filter>();
       }
       mustFilters.add(filterClause.getFilter());
-    }
-    if (filterClause.getOccur().equals(Occur.SHOULD)) {
-      if (shouldFilters==null) {
-        shouldFilters=new ArrayList<Filter>();
+    } else if (filterClause.getOccur().equals(Occur.SHOULD)) {
+      if (shouldFilters == null) {
+        shouldFilters = new ArrayList<Filter>();
       }
       shouldFilters.add(filterClause.getFilter());
-    }
-    if (filterClause.getOccur().equals(Occur.MUST_NOT)) {
-      if (notFilters==null) {
-        notFilters=new ArrayList<Filter>();
+    } else if (filterClause.getOccur().equals(Occur.MUST_NOT)) {
+      if (notFilters == null) {
+        notFilters = new ArrayList<Filter>();
       }
       notFilters.add(filterClause.getFilter());
     }
   }
 
-  private boolean equalFilters(ArrayList<Filter> filters1, ArrayList<Filter> filters2)
-  {
-     return (filters1 == filters2) ||
-              ((filters1 != null) && filters1.equals(filters2));
+  private DocIdSetIterator getDISI(List<Filter> filters, int index, AtomicReaderContext context)
+      throws IOException {
+    return filters.get(index).getDocIdSet(context).iterator();
   }
   
   @Override
-  public boolean equals(Object obj)
-  {
-    if (this == obj)
+  public boolean equals(Object obj) {
+    if (this == obj) {
       return true;
+    }
 
-    if ((obj == null) || (obj.getClass() != this.getClass()))
+    if ((obj == null) || (obj.getClass() != this.getClass())) {
       return false;
+    }
 
     BooleanFilter other = (BooleanFilter)obj;
     return equalFilters(notFilters, other.notFilters)
@@ -159,10 +147,13 @@ public class BooleanFilter extends Filte
         && equalFilters(shouldFilters, other.shouldFilters);
   }
 
+  private boolean equalFilters(List<Filter> filters1, List<Filter> filters2) {
+    return (filters1 == filters2) || ((filters1 != null) && filters1.equals(filters2));
+  }
+
   @Override
-  public int hashCode()
-  {
-    int hash=7;
+  public int hashCode() {
+    int hash = 7;
     hash = 31 * hash + (null == mustFilters ? 0 : mustFilters.hashCode());
     hash = 31 * hash + (null == notFilters ? 0 : notFilters.hashCode());
     hash = 31 * hash + (null == shouldFilters ? 0 : shouldFilters.hashCode());
@@ -171,8 +162,7 @@ public class BooleanFilter extends Filte
   
   /** Prints a user-readable version of this query. */
   @Override
-  public String toString()
-  {
+  public String toString() {
     StringBuilder buffer = new StringBuilder();
     buffer.append("BooleanFilter(");
     appendFilters(shouldFilters, "", buffer);
@@ -182,13 +172,12 @@ public class BooleanFilter extends Filte
     return buffer.toString();
   }
   
-  private void appendFilters(ArrayList<Filter> filters, String occurString, StringBuilder buffer)
-  {
+  private void appendFilters(List<Filter> filters, String occurString, StringBuilder buffer) {
     if (filters != null) {
-      for (int i = 0; i < filters.size(); i++) {
+      for (Filter filter : filters) {
         buffer.append(' ');
         buffer.append(occurString);
-        buffer.append(filters.get(i).toString());
+        buffer.append(filter.toString());
       }
     }
   }    

Modified: lucene/dev/trunk/lucene/contrib/queries/src/java/org/apache/lucene/search/BoostingQuery.java
URL: http://svn.apache.org/viewvc/lucene/dev/trunk/lucene/contrib/queries/src/java/org/apache/lucene/search/BoostingQuery.java?rev=1145916&r1=1145915&r2=1145916&view=diff
==============================================================================
--- lucene/dev/trunk/lucene/contrib/queries/src/java/org/apache/lucene/search/BoostingQuery.java (original)
+++ lucene/dev/trunk/lucene/contrib/queries/src/java/org/apache/lucene/search/BoostingQuery.java Wed Jul 13 09:04:52 2011
@@ -46,9 +46,8 @@ public class BoostingQuery extends Query
 
     public BoostingQuery(Query match, Query context, float boost) {
       this.match = match;
-      this.context = (Query)context.clone();        // clone before boost
+      this.context = (Query) context.clone();        // clone before boost
       this.boost = boost;
-
       this.context.setBoost(0.0f);                      // ignore context-only matches
     }
 
@@ -96,25 +95,36 @@ public class BoostingQuery extends Query
 
     @Override
     public boolean equals(Object obj) {
-      if (this == obj)
+      if (this == obj) {
         return true;
-      if (obj == null)
+      }
+      if (obj == null) {
         return false;
-      if (getClass() != obj.getClass())
+      }
+      if (getClass() != obj.getClass()) {
         return false;
+      }
+
       BoostingQuery other = (BoostingQuery) obj;
-      if (Float.floatToIntBits(boost) != Float.floatToIntBits(other.boost))
+      if (Float.floatToIntBits(boost) != Float.floatToIntBits(other.boost)) {
         return false;
+      }
+      
       if (context == null) {
-        if (other.context != null)
+        if (other.context != null) {
           return false;
-      } else if (!context.equals(other.context))
+        }
+      } else if (!context.equals(other.context)) {
         return false;
+      }
+      
       if (match == null) {
-        if (other.match != null)
+        if (other.match != null) {
           return false;
-      } else if (!match.equals(other.match))
+        }
+      } else if (!match.equals(other.match)) {
         return false;
+      }
       return true;
     }
 

Modified: lucene/dev/trunk/lucene/contrib/queries/src/java/org/apache/lucene/search/ChainedFilter.java
URL: http://svn.apache.org/viewvc/lucene/dev/trunk/lucene/contrib/queries/src/java/org/apache/lucene/search/ChainedFilter.java?rev=1145916&r1=1145915&r2=1145916&view=diff
==============================================================================
--- lucene/dev/trunk/lucene/contrib/queries/src/java/org/apache/lucene/search/ChainedFilter.java (original)
+++ lucene/dev/trunk/lucene/contrib/queries/src/java/org/apache/lucene/search/ChainedFilter.java Wed Jul 13 09:04:52 2011
@@ -17,16 +17,13 @@ package org.apache.lucene.search;
  * limitations under the License.
  */
 
-import java.io.IOException;
-
 import org.apache.lucene.index.IndexReader;
 import org.apache.lucene.index.IndexReader.AtomicReaderContext;
-import org.apache.lucene.search.DocIdSet;
-import org.apache.lucene.search.DocIdSetIterator;
-import org.apache.lucene.search.Filter;
 import org.apache.lucene.util.OpenBitSet;
 import org.apache.lucene.util.OpenBitSetDISI;
 
+import java.io.IOException;
+
 /**
  * <p>
  * Allows multiple {@link Filter}s to be chained.
@@ -41,218 +38,209 @@ import org.apache.lucene.util.OpenBitSet
  * more efficient to place the most restrictive filters
  * /least computationally-intensive filters first.
  * </p>
- *
  */
-public class ChainedFilter extends Filter
-{
-    public static final int OR = 0;
-    public static final int AND = 1;
-    public static final int ANDNOT = 2;
-    public static final int XOR = 3;
-    /**
-     * Logical operation when none is declared. Defaults to
-     * OR.
-     */
-    public static int DEFAULT = OR;
-
-    /** The filter chain */
-    private Filter[] chain = null;
-
-    private int[] logicArray;
-
-    private int logic = -1;
-
-    /**
-     * Ctor.
-     * @param chain The chain of filters
-     */
-    public ChainedFilter(Filter[] chain)
-    {
-        this.chain = chain;
-    }
-
-    /**
-     * Ctor.
-     * @param chain The chain of filters
-     * @param logicArray Logical operations to apply between filters
-     */
-    public ChainedFilter(Filter[] chain, int[] logicArray)
-    {
-        this.chain = chain;
-        this.logicArray = logicArray;
-    }
-
-    /**
-     * Ctor.
-     * @param chain The chain of filters
-     * @param logic Logical operation to apply to ALL filters
-     */
-    public ChainedFilter(Filter[] chain, int logic)
-    {
-        this.chain = chain;
-        this.logic = logic;
-    }
-
-    /**
-     * {@link Filter#getDocIdSet}.
-     */
-    @Override
-    public DocIdSet getDocIdSet(AtomicReaderContext context) throws IOException
-    {
-        int[] index = new int[1]; // use array as reference to modifiable int; 
-        index[0] = 0;             // an object attribute would not be thread safe.
-        if (logic != -1)
-            return getDocIdSet(context, logic, index);
-        else if (logicArray != null)
-            return getDocIdSet(context, logicArray, index);
-        else
-            return getDocIdSet(context, DEFAULT, index);
-    }
-
-    private DocIdSetIterator getDISI(Filter filter, AtomicReaderContext context)
-    throws IOException {
-        DocIdSet docIdSet = filter.getDocIdSet(context);
-        if (docIdSet == null) {
-          return DocIdSet.EMPTY_DOCIDSET.iterator();
-        } else {
-          DocIdSetIterator iter = docIdSet.iterator();
-          if (iter == null) {
-            return DocIdSet.EMPTY_DOCIDSET.iterator();
-          } else {
-            return iter;
-          }
-        }
-    }
-
-    private OpenBitSetDISI initialResult(AtomicReaderContext context, int logic, int[] index)
-    throws IOException
-    {
-        IndexReader reader = context.reader;
-        OpenBitSetDISI result;
-        /**
-         * First AND operation takes place against a completely false
-         * bitset and will always return zero results.
-         */
-        if (logic == AND)
-        {
-            result = new OpenBitSetDISI(getDISI(chain[index[0]], context), reader.maxDoc());
-            ++index[0];
-        }
-        else if (logic == ANDNOT)
-        {
-            result = new OpenBitSetDISI(getDISI(chain[index[0]], context), reader.maxDoc());
-            result.flip(0,reader.maxDoc()); // NOTE: may set bits for deleted docs.
-            ++index[0];
-        }
-        else
-        {
-            result = new OpenBitSetDISI(reader.maxDoc());
-        }
-        return result;
-    }
-
-    /**
-     * Delegates to each filter in the chain.
-     * @param reader IndexReader
-     * @param logic Logical operation
-     * @return DocIdSet
-     */
-    private DocIdSet getDocIdSet(AtomicReaderContext context, int logic, int[] index)
-    throws IOException
-    {
-        OpenBitSetDISI result = initialResult(context, logic, index);
-        for (; index[0] < chain.length; index[0]++)
-        {
-            doChain(result, logic, chain[index[0]].getDocIdSet(context));
-        }
-        return result;
-    }
+public class ChainedFilter extends Filter {
 
-    /**
-     * Delegates to each filter in the chain.
-     * @param reader IndexReader
-     * @param logic Logical operation
-     * @return DocIdSet
-     */
-    private DocIdSet getDocIdSet(AtomicReaderContext info, int[] logic, int[] index)
-    throws IOException
-    {
-        if (logic.length != chain.length)
-            throw new IllegalArgumentException("Invalid number of elements in logic array");
-
-        OpenBitSetDISI result = initialResult(info, logic[0], index);
-        for (; index[0] < chain.length; index[0]++)
-        {
-            doChain(result, logic[index[0]], chain[index[0]].getDocIdSet(info));
-        }
-        return result;
-    }
-
-    @Override
-    public String toString()
-    {
-        StringBuilder sb = new StringBuilder();
-        sb.append("ChainedFilter: [");
-        for (int i = 0; i < chain.length; i++)
-        {
-            sb.append(chain[i]);
-            sb.append(' ');
-        }
-        sb.append(']');
-        return sb.toString();
+  public static final int OR = 0;
+  public static final int AND = 1;
+  public static final int ANDNOT = 2;
+  public static final int XOR = 3;
+  /**
+   * Logical operation when none is declared. Defaults to OR.
+   */
+  public static int DEFAULT = OR;
+
+  /**
+   * The filter chain
+   */
+  private Filter[] chain = null;
+
+  private int[] logicArray;
+
+  private int logic = -1;
+
+  /**
+   * Ctor.
+   *
+   * @param chain The chain of filters
+   */
+  public ChainedFilter(Filter[] chain) {
+    this.chain = chain;
+  }
+
+  /**
+   * Ctor.
+   *
+   * @param chain The chain of filters
+   * @param logicArray Logical operations to apply between filters
+   */
+  public ChainedFilter(Filter[] chain, int[] logicArray) {
+    this.chain = chain;
+    this.logicArray = logicArray;
+  }
+
+  /**
+   * Ctor.
+   *
+   * @param chain The chain of filters
+   * @param logic Logical operation to apply to ALL filters
+   */
+  public ChainedFilter(Filter[] chain, int logic) {
+    this.chain = chain;
+    this.logic = logic;
+  }
+
+  /**
+   * {@link Filter#getDocIdSet}.
+   */
+  @Override
+  public DocIdSet getDocIdSet(AtomicReaderContext context) throws IOException {
+    int[] index = new int[1]; // use array as reference to modifiable int;
+    index[0] = 0;             // an object attribute would not be thread safe.
+    if (logic != -1) {
+      return getDocIdSet(context, logic, index);
+    } else if (logicArray != null) {
+      return getDocIdSet(context, logicArray, index);
+    }
+
+    return getDocIdSet(context, DEFAULT, index);
+  }
+
+  private DocIdSetIterator getDISI(Filter filter, AtomicReaderContext context)
+      throws IOException {
+    DocIdSet docIdSet = filter.getDocIdSet(context);
+    if (docIdSet == null) {
+      return DocIdSet.EMPTY_DOCIDSET.iterator();
+    } else {
+      DocIdSetIterator iter = docIdSet.iterator();
+      if (iter == null) {
+        return DocIdSet.EMPTY_DOCIDSET.iterator();
+      } else {
+        return iter;
+      }
     }
+  }
 
-    private void doChain(OpenBitSetDISI result, int logic, DocIdSet dis)
-    throws IOException {
-      
-      if (dis instanceof OpenBitSet) {
-        // optimized case for OpenBitSets
-        switch (logic) {
-            case OR:
-                result.or((OpenBitSet) dis);
-                break;
-            case AND:
-                result.and((OpenBitSet) dis);
-                break;
-            case ANDNOT:
-                result.andNot((OpenBitSet) dis);
-                break;
-            case XOR:
-                result.xor((OpenBitSet) dis);
-                break;
-            default:
-                doChain(result, DEFAULT, dis);
-                break;
-        }
+  private OpenBitSetDISI initialResult(AtomicReaderContext context, int logic, int[] index)
+      throws IOException {
+    IndexReader reader = context.reader;
+    OpenBitSetDISI result;
+    /**
+     * First AND operation takes place against a completely false
+     * bitset and will always return zero results.
+     */
+    if (logic == AND) {
+      result = new OpenBitSetDISI(getDISI(chain[index[0]], context), reader.maxDoc());
+      ++index[0];
+    } else if (logic == ANDNOT) {
+      result = new OpenBitSetDISI(getDISI(chain[index[0]], context), reader.maxDoc());
+      result.flip(0, reader.maxDoc()); // NOTE: may set bits for deleted docs.
+      ++index[0];
+    } else {
+      result = new OpenBitSetDISI(reader.maxDoc());
+    }
+    return result;
+  }
+
+  /**
+   * Delegates to each filter in the chain.
+   *
+   * @param context AtomicReaderContext
+   * @param logic Logical operation
+   * @return DocIdSet
+   */
+  private DocIdSet getDocIdSet(AtomicReaderContext context, int logic, int[] index)
+      throws IOException {
+    OpenBitSetDISI result = initialResult(context, logic, index);
+    for (; index[0] < chain.length; index[0]++) {
+      doChain(result, logic, chain[index[0]].getDocIdSet(context));
+    }
+    return result;
+  }
+
+  /**
+   * Delegates to each filter in the chain.
+   *
+   * @param context AtomicReaderContext
+   * @param logic Logical operation
+   * @return DocIdSet
+   */
+  private DocIdSet getDocIdSet(AtomicReaderContext context, int[] logic, int[] index)
+      throws IOException {
+    if (logic.length != chain.length) {
+      throw new IllegalArgumentException("Invalid number of elements in logic array");
+    }
+
+    OpenBitSetDISI result = initialResult(context, logic[0], index);
+    for (; index[0] < chain.length; index[0]++) {
+      doChain(result, logic[index[0]], chain[index[0]].getDocIdSet(context));
+    }
+    return result;
+  }
+
+  @Override
+  public String toString() {
+    StringBuilder sb = new StringBuilder();
+    sb.append("ChainedFilter: [");
+    for (Filter aChain : chain) {
+      sb.append(aChain);
+      sb.append(' ');
+    }
+    sb.append(']');
+    return sb.toString();
+  }
+
+  private void doChain(OpenBitSetDISI result, int logic, DocIdSet dis)
+      throws IOException {
+
+    if (dis instanceof OpenBitSet) {
+      // optimized case for OpenBitSets
+      switch (logic) {
+        case OR:
+          result.or((OpenBitSet) dis);
+          break;
+        case AND:
+          result.and((OpenBitSet) dis);
+          break;
+        case ANDNOT:
+          result.andNot((OpenBitSet) dis);
+          break;
+        case XOR:
+          result.xor((OpenBitSet) dis);
+          break;
+        default:
+          doChain(result, DEFAULT, dis);
+          break;
+      }
+    } else {
+      DocIdSetIterator disi;
+      if (dis == null) {
+        disi = DocIdSet.EMPTY_DOCIDSET.iterator();
       } else {
-        DocIdSetIterator disi;
-        if (dis == null) {
+        disi = dis.iterator();
+        if (disi == null) {
           disi = DocIdSet.EMPTY_DOCIDSET.iterator();
-        } else {
-          disi = dis.iterator();
-          if (disi == null) {
-            disi = DocIdSet.EMPTY_DOCIDSET.iterator();            
-          }
         }
+      }
 
-        switch (logic) {
-            case OR:
-                result.inPlaceOr(disi);
-                break;
-            case AND:
-                result.inPlaceAnd(disi);
-                break;
-            case ANDNOT:
-                result.inPlaceNot(disi);
-                break;
-            case XOR:
-                result.inPlaceXor(disi);
-                break;
-            default:
-                doChain(result, DEFAULT, dis);
-                break;
-        }
+      switch (logic) {
+        case OR:
+          result.inPlaceOr(disi);
+          break;
+        case AND:
+          result.inPlaceAnd(disi);
+          break;
+        case ANDNOT:
+          result.inPlaceNot(disi);
+          break;
+        case XOR:
+          result.inPlaceXor(disi);
+          break;
+        default:
+          doChain(result, DEFAULT, dis);
+          break;
       }
     }
+  }
 
 }

Modified: lucene/dev/trunk/lucene/contrib/queries/src/java/org/apache/lucene/search/DuplicateFilter.java
URL: http://svn.apache.org/viewvc/lucene/dev/trunk/lucene/contrib/queries/src/java/org/apache/lucene/search/DuplicateFilter.java?rev=1145916&r1=1145915&r2=1145916&view=diff
==============================================================================
--- lucene/dev/trunk/lucene/contrib/queries/src/java/org/apache/lucene/search/DuplicateFilter.java (original)
+++ lucene/dev/trunk/lucene/contrib/queries/src/java/org/apache/lucene/search/DuplicateFilter.java Wed Jul 13 09:04:52 2011
@@ -15,150 +15,146 @@ package org.apache.lucene.search;
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-import java.io.IOException;
 
-import org.apache.lucene.index.IndexReader;
-import org.apache.lucene.util.BytesRef;
+import org.apache.lucene.index.*;
 import org.apache.lucene.index.IndexReader.AtomicReaderContext;
-import org.apache.lucene.index.Terms;
-import org.apache.lucene.index.DocsEnum;
-import org.apache.lucene.index.TermsEnum;
-import org.apache.lucene.index.MultiFields;
-import org.apache.lucene.util.FixedBitSet;
 import org.apache.lucene.util.Bits;
+import org.apache.lucene.util.BytesRef;
+import org.apache.lucene.util.FixedBitSet;
 
-public class DuplicateFilter extends Filter
-{ // TODO: make duplicate filter aware of ReaderContext such that we can 
+import java.io.IOException;
+
+public class DuplicateFilter extends Filter {
+  // TODO: make duplicate filter aware of ReaderContext such that we can
   // filter duplicates across segments
-	
-	String fieldName;
-	
-	/**
-	 * KeepMode determines which document id to consider as the master, all others being 
-	 * identified as duplicates. Selecting the "first occurrence" can potentially save on IO.
-	 */
-	int keepMode=KM_USE_FIRST_OCCURRENCE;
-	public static final int KM_USE_FIRST_OCCURRENCE=1;
-	public static final int KM_USE_LAST_OCCURRENCE=2;
-	
-	/**
-	 * "Full" processing mode starts by setting all bits to false and only setting bits
-	 * for documents that contain the given field and are identified as none-duplicates. 
-
-	 * "Fast" processing sets all bits to true then unsets all duplicate docs found for the
-	 * given field. This approach avoids the need to read TermDocs for terms that are seen 
-	 * to have a document frequency of exactly "1" (i.e. no duplicates). While a potentially 
-	 * faster approach , the downside is that bitsets produced will include bits set for 
-	 * documents that do not actually contain the field given.
-	 * 
-	 */
-	int processingMode=PM_FULL_VALIDATION;
-	public static final int PM_FULL_VALIDATION=1;
-	public static final int PM_FAST_INVALIDATION=2;
-	
-
-	
-	public DuplicateFilter(String fieldName)
-	{
-		this(fieldName, KM_USE_LAST_OCCURRENCE,PM_FULL_VALIDATION);
-	}
-	
-
-	public DuplicateFilter(String fieldName, int keepMode, int processingMode)
-	{
-		this.fieldName = fieldName;
-		this.keepMode = keepMode;
-		this.processingMode = processingMode;
-	}
+
+  /**
+   * KeepMode determines which document id to consider as the master, all others being
+   * identified as duplicates. Selecting the "first occurrence" can potentially save on IO.
+   */
+  public enum KeepMode {
+    KM_USE_FIRST_OCCURRENCE, KM_USE_LAST_OCCURRENCE
+  }
+
+  private KeepMode keepMode;
+
+  /**
+   * "Full" processing mode starts by setting all bits to false and only setting bits
+   * for documents that contain the given field and are identified as none-duplicates.
+   * <p/>
+   * "Fast" processing sets all bits to true then unsets all duplicate docs found for the
+   * given field. This approach avoids the need to read TermDocs for terms that are seen
+   * to have a document frequency of exactly "1" (i.e. no duplicates). While a potentially
+   * faster approach , the downside is that bitsets produced will include bits set for
+   * documents that do not actually contain the field given.
+   */
+
+  public enum ProcessingMode {
+    PM_FULL_VALIDATION, PM_FAST_INVALIDATION
+  }
+
+  private ProcessingMode processingMode;
+
+  private String fieldName;
+
+  public DuplicateFilter(String fieldName) {
+    this(fieldName, KeepMode.KM_USE_LAST_OCCURRENCE, ProcessingMode.PM_FULL_VALIDATION);
+  }
+
+  public DuplicateFilter(String fieldName, KeepMode keepMode, ProcessingMode processingMode) {
+    this.fieldName = fieldName;
+    this.keepMode = keepMode;
+    this.processingMode = processingMode;
+  }
 
   @Override
-  public DocIdSet getDocIdSet(AtomicReaderContext context) throws IOException
-	{
-		if(processingMode==PM_FAST_INVALIDATION)
-		{
-			return fastBits(context.reader);
-		}
-		else
-		{
-			return correctBits(context.reader);
-		}
-	}
-	
+  public DocIdSet getDocIdSet(AtomicReaderContext context) throws IOException {
+    if (processingMode == ProcessingMode.PM_FAST_INVALIDATION) {
+      return fastBits(context.reader);
+    } else {
+      return correctBits(context.reader);
+    }
+  }
+
   private FixedBitSet correctBits(IndexReader reader) throws IOException {
     FixedBitSet bits = new FixedBitSet(reader.maxDoc()); //assume all are INvalid
     final Bits liveDocs = MultiFields.getLiveDocs(reader);
     Terms terms = reader.fields().terms(fieldName);
-    if (terms != null) {
-      TermsEnum termsEnum = terms.iterator();
-      DocsEnum docs = null;
-      while(true) {
-        BytesRef currTerm = termsEnum.next();
-        if (currTerm == null) {
-          break;
-        } else {
-          docs = termsEnum.docs(liveDocs, docs);
-          int doc = docs.nextDoc();
-          if (doc != DocsEnum.NO_MORE_DOCS) {
-            if (keepMode == KM_USE_FIRST_OCCURRENCE) {
-              bits.set(doc);
-            } else {
-              int lastDoc = doc;
-              while (true) {
-                lastDoc = doc;
-                doc = docs.nextDoc();
-                if (doc == DocsEnum.NO_MORE_DOCS) {
-                  break;
-                }
+
+    if (terms == null) {
+      return bits;
+    }
+
+    TermsEnum termsEnum = terms.iterator();
+    DocsEnum docs = null;
+    while (true) {
+      BytesRef currTerm = termsEnum.next();
+      if (currTerm == null) {
+        break;
+      } else {
+        docs = termsEnum.docs(liveDocs, docs);
+        int doc = docs.nextDoc();
+        if (doc != DocsEnum.NO_MORE_DOCS) {
+          if (keepMode == KeepMode.KM_USE_FIRST_OCCURRENCE) {
+            bits.set(doc);
+          } else {
+            int lastDoc = doc;
+            while (true) {
+              lastDoc = doc;
+              doc = docs.nextDoc();
+              if (doc == DocsEnum.NO_MORE_DOCS) {
+                break;
               }
-              bits.set(lastDoc);
             }
+            bits.set(lastDoc);
           }
         }
       }
     }
     return bits;
   }
-	
-  private FixedBitSet fastBits(IndexReader reader) throws IOException
-  {
-		
-    FixedBitSet bits=new FixedBitSet(reader.maxDoc());
-    bits.set(0,reader.maxDoc()); //assume all are valid
+
+  private FixedBitSet fastBits(IndexReader reader) throws IOException {
+    FixedBitSet bits = new FixedBitSet(reader.maxDoc());
+    bits.set(0, reader.maxDoc()); //assume all are valid
     final Bits liveDocs = MultiFields.getLiveDocs(reader);
     Terms terms = reader.fields().terms(fieldName);
-    if (terms != null) {
-      TermsEnum termsEnum = terms.iterator();
-      DocsEnum docs = null;
-      while(true) {
-        BytesRef currTerm = termsEnum.next();
-        if (currTerm == null) {
-          break;
-        } else {
-          if (termsEnum.docFreq() > 1) {
-            // unset potential duplicates
-            docs = termsEnum.docs(liveDocs, docs);
-            int doc = docs.nextDoc();
-            if (doc != DocsEnum.NO_MORE_DOCS) {
-              if (keepMode == KM_USE_FIRST_OCCURRENCE) {
-                doc = docs.nextDoc();
-              }
-            }
-            
-            int lastDoc = -1;
-            while (true) {
-              lastDoc = doc;
-              bits.clear(lastDoc);
+
+    if (terms == null) {
+      return bits;
+    }
+
+    TermsEnum termsEnum = terms.iterator();
+    DocsEnum docs = null;
+    while (true) {
+      BytesRef currTerm = termsEnum.next();
+      if (currTerm == null) {
+        break;
+      } else {
+        if (termsEnum.docFreq() > 1) {
+          // unset potential duplicates
+          docs = termsEnum.docs(liveDocs, docs);
+          int doc = docs.nextDoc();
+          if (doc != DocsEnum.NO_MORE_DOCS) {
+            if (keepMode == KeepMode.KM_USE_FIRST_OCCURRENCE) {
               doc = docs.nextDoc();
-              if (doc == DocsEnum.NO_MORE_DOCS) {
-                break;
-              }
             }
+          }
 
-            if (keepMode==KM_USE_LAST_OCCURRENCE) {
-              // restore the last bit
-              bits.set(lastDoc);
+          int lastDoc = -1;
+          while (true) {
+            lastDoc = doc;
+            bits.clear(lastDoc);
+            doc = docs.nextDoc();
+            if (doc == DocsEnum.NO_MORE_DOCS) {
+              break;
             }
           }
+
+          if (keepMode == KeepMode.KM_USE_LAST_OCCURRENCE) {
+            // restore the last bit
+            bits.set(lastDoc);
+          }
         }
       }
     }
@@ -166,67 +162,51 @@ public class DuplicateFilter extends Fil
     return bits;
   }
 
-	public String getFieldName()
-	{
-		return fieldName;
-	}
-
-
-	public void setFieldName(String fieldName)
-	{
-		this.fieldName = fieldName;
-	}
-
-
-	public int getKeepMode()
-	{
-		return keepMode;
-	}
-
-
-	public void setKeepMode(int keepMode)
-	{
-		this.keepMode = keepMode;
-	}
-
-
-	@Override
-	public boolean equals(Object obj)
-	{
-		if(this == obj)
-			return true;
-		if((obj == null) || (obj.getClass() != this.getClass()))
-			return false;
-		DuplicateFilter other = (DuplicateFilter)obj;
-		return keepMode == other.keepMode &&
-		processingMode == other.processingMode &&
-			(fieldName == other.fieldName || (fieldName != null && fieldName.equals(other.fieldName)));
-	}
+  public String getFieldName() {
+    return fieldName;
+  }
+
+  public void setFieldName(String fieldName) {
+    this.fieldName = fieldName;
+  }
+
+  public KeepMode getKeepMode() {
+    return keepMode;
+  }
+
+  public void setKeepMode(KeepMode keepMode) {
+    this.keepMode = keepMode;
+  }
+
+  @Override
+  public boolean equals(Object obj) {
+    if (this == obj) {
+      return true;
+    }
+    if ((obj == null) || (obj.getClass() != this.getClass())) {
+      return false;
+    }
 
+    DuplicateFilter other = (DuplicateFilter) obj;
+    return keepMode == other.keepMode &&
+        processingMode == other.processingMode &&
+        fieldName != null && fieldName.equals(other.fieldName);
+  }
 
+  @Override
+  public int hashCode() {
+    int hash = 217;
+    hash = 31 * hash + keepMode.hashCode();
+    hash = 31 * hash + processingMode.hashCode();
+    hash = 31 * hash + fieldName.hashCode();
+    return hash;
+  }
 
-	@Override
-	public int hashCode()
-	{
-		int hash = 217;
-		hash = 31 * hash + keepMode;
-		hash = 31 * hash + processingMode;
-		hash = 31 * hash + fieldName.hashCode();
-		return hash;	
-	}
-
-
-	public int getProcessingMode()
-	{
-		return processingMode;
-	}
-
-
-	public void setProcessingMode(int processingMode)
-	{
-		this.processingMode = processingMode;
-	}
-	
-	
+  public ProcessingMode getProcessingMode() {
+    return processingMode;
+  }
 
+  public void setProcessingMode(ProcessingMode processingMode) {
+    this.processingMode = processingMode;
+  }
 }

Modified: lucene/dev/trunk/lucene/contrib/queries/src/java/org/apache/lucene/search/FilterClause.java
URL: http://svn.apache.org/viewvc/lucene/dev/trunk/lucene/contrib/queries/src/java/org/apache/lucene/search/FilterClause.java?rev=1145916&r1=1145915&r2=1145916&view=diff
==============================================================================
--- lucene/dev/trunk/lucene/contrib/queries/src/java/org/apache/lucene/search/FilterClause.java (original)
+++ lucene/dev/trunk/lucene/contrib/queries/src/java/org/apache/lucene/search/FilterClause.java Wed Jul 13 09:04:52 2011
@@ -25,11 +25,10 @@ import org.apache.lucene.search.BooleanC
  * (Follows the boolean logic in BooleanClause for composition 
  * of queries.)
  */
+public class FilterClause {
 
-public class FilterClause
-{
-	Occur occur = null;
-	Filter filter = null;
+	private final Occur occur;
+	private final Filter filter;
 
 	/**
 	 * Create a new FilterClause
@@ -37,8 +36,7 @@ public class FilterClause
 	 * @param occur A parameter implementation indicating SHOULD, MUST or MUST NOT
 	 */
 	
-	public FilterClause( Filter filter,Occur occur)
-	{
+	public FilterClause(Filter filter, Occur occur) {
 		this.occur = occur;
 		this.filter = filter;
 	}
@@ -47,9 +45,7 @@ public class FilterClause
 	 * Returns this FilterClause's filter
 	 * @return A Filter object
 	 */
-	
-	public Filter getFilter()
-	{
+	public Filter getFilter() {
 		return filter;
 	}
 
@@ -57,9 +53,7 @@ public class FilterClause
 	 * Returns this FilterClause's occur parameter
 	 * @return An Occur object
 	 */
-	
-	public Occur getOccur()
-	{
+	public Occur getOccur() {
 		return occur;
 	}
 

Modified: lucene/dev/trunk/lucene/contrib/queries/src/java/org/apache/lucene/search/TermsFilter.java
URL: http://svn.apache.org/viewvc/lucene/dev/trunk/lucene/contrib/queries/src/java/org/apache/lucene/search/TermsFilter.java?rev=1145916&r1=1145915&r2=1145916&view=diff
==============================================================================
--- lucene/dev/trunk/lucene/contrib/queries/src/java/org/apache/lucene/search/TermsFilter.java (original)
+++ lucene/dev/trunk/lucene/contrib/queries/src/java/org/apache/lucene/search/TermsFilter.java Wed Jul 13 09:04:52 2011
@@ -17,102 +17,97 @@ package org.apache.lucene.search;
  * limitations under the License.
  */
 
+import org.apache.lucene.index.*;
+import org.apache.lucene.index.IndexReader.AtomicReaderContext;
+import org.apache.lucene.util.Bits;
+import org.apache.lucene.util.BytesRef;
+import org.apache.lucene.util.FixedBitSet;
+
 import java.io.IOException;
-import java.util.Iterator;
 import java.util.Set;
 import java.util.TreeSet;
 
-import org.apache.lucene.index.IndexReader;
-import org.apache.lucene.index.IndexReader.AtomicReaderContext;
-import org.apache.lucene.index.Term;
-import org.apache.lucene.index.DocsEnum;
-import org.apache.lucene.index.Terms;
-import org.apache.lucene.index.TermsEnum;
-import org.apache.lucene.index.Fields;
-import org.apache.lucene.util.FixedBitSet;
-import org.apache.lucene.util.BytesRef;
-import org.apache.lucene.util.Bits;
-
 /**
- * Constructs a filter for docs matching any of the terms added to this class. 
- * Unlike a RangeFilter this can be used for filtering on multiple terms that are not necessarily in 
- * a sequence. An example might be a collection of primary keys from a database query result or perhaps 
- * a choice of "category" labels picked by the end user. As a filter, this is much faster than the 
+ * Constructs a filter for docs matching any of the terms added to this class.
+ * Unlike a RangeFilter this can be used for filtering on multiple terms that are not necessarily in
+ * a sequence. An example might be a collection of primary keys from a database query result or perhaps
+ * a choice of "category" labels picked by the end user. As a filter, this is much faster than the
  * equivalent query (a BooleanQuery with many "should" TermQueries)
- *
  */
-public class TermsFilter extends Filter
-{
-	Set<Term> terms=new TreeSet<Term>();
-	
-	/**
-	 * Adds a term to the list of acceptable terms   
-	 * @param term
-	 */
-	public void addTerm(Term term)
-	{
-		terms.add(term);
-	}
-	
+public class TermsFilter extends Filter {
+
+  private final Set<Term> terms = new TreeSet<Term>();
+
+  /**
+   * Adds a term to the list of acceptable terms
+   *
+   * @param term
+   */
+  public void addTerm(Term term) {
+    terms.add(term);
+  }
+
 /* (non-Javadoc)
    * @see org.apache.lucene.search.Filter#getDocIdSet(org.apache.lucene.index.IndexReader)
-	 */
+   */
+
   @Override
   public DocIdSet getDocIdSet(AtomicReaderContext context) throws IOException {
     IndexReader reader = context.reader;
-    FixedBitSet result=new FixedBitSet(reader.maxDoc());
+    FixedBitSet result = new FixedBitSet(reader.maxDoc());
     Fields fields = reader.fields();
+
+    if (fields == null) {
+      return result;
+    }
+
     BytesRef br = new BytesRef();
     Bits liveDocs = reader.getLiveDocs();
-    if (fields != null) {
-      String lastField = null;
-      Terms termsC = null;
-      TermsEnum termsEnum = null;
-      DocsEnum docs = null;
-      for (Iterator<Term> iter = terms.iterator(); iter.hasNext();) {
-        Term term = iter.next();
-        if (!term.field().equals(lastField)) {
-          termsC = fields.terms(term.field());
-          termsEnum = termsC.iterator();
-          lastField = term.field();
-        }
+    String lastField = null;
+    Terms termsC = null;
+    TermsEnum termsEnum = null;
+    DocsEnum docs = null;
+    for (Term term : terms) {
+      if (!term.field().equals(lastField)) {
+        termsC = fields.terms(term.field());
+        termsEnum = termsC.iterator();
+        lastField = term.field();
+      }
 
-        if (terms != null) {
-          br.copy(term.bytes());
-          if (termsEnum.seekCeil(br) == TermsEnum.SeekStatus.FOUND) {
-            docs = termsEnum.docs(liveDocs, docs);
-            while(docs.nextDoc() != DocsEnum.NO_MORE_DOCS) {
-              result.set(docs.docID());
-            }
+      if (terms != null) { // TODO this check doesn't make sense, decide which variable its supposed to be for
+        br.copy(term.bytes());
+        if (termsEnum.seekCeil(br) == TermsEnum.SeekStatus.FOUND) {
+          docs = termsEnum.docs(liveDocs, docs);
+          while (docs.nextDoc() != DocsEnum.NO_MORE_DOCS) {
+            result.set(docs.docID());
           }
         }
       }
     }
     return result;
   }
-	
-	@Override
-	public boolean equals(Object obj)
-	{
-		if(this == obj)
-			return true;
-		if((obj == null) || (obj.getClass() != this.getClass()))
-				return false;
-		TermsFilter test = (TermsFilter)obj;
-		return (terms == test.terms ||
-					 (terms != null && terms.equals(test.terms)));
-	}
-
-	@Override
-	public int hashCode()
-	{
-		int hash=9;
-		for (Iterator<Term> iter = terms.iterator(); iter.hasNext();)
-		{
-			Term term = iter.next();
-			hash = 31 * hash + term.hashCode();			
-		}
-		return hash;
-	}
-	
+
+  @Override
+  public boolean equals(Object obj) {
+    if (this == obj) {
+      return true;
+    }
+    if ((obj == null) || (obj.getClass() != this.getClass())) {
+      return false;
+    }
+
+    TermsFilter test = (TermsFilter) obj;
+    return (terms == test.terms ||
+        (terms != null && terms.equals(test.terms)));
+  }
+
+  @Override
+  public int hashCode() {
+    int hash = 9;
+    for (Term term : terms) {
+      hash = 31 * hash + term.hashCode();
+    }
+    return hash;
+  }
+
 }

Modified: lucene/dev/trunk/lucene/contrib/queries/src/java/org/apache/lucene/search/regex/JakartaRegexpCapabilities.java
URL: http://svn.apache.org/viewvc/lucene/dev/trunk/lucene/contrib/queries/src/java/org/apache/lucene/search/regex/JakartaRegexpCapabilities.java?rev=1145916&r1=1145915&r2=1145916&view=diff
==============================================================================
--- lucene/dev/trunk/lucene/contrib/queries/src/java/org/apache/lucene/search/regex/JakartaRegexpCapabilities.java (original)
+++ lucene/dev/trunk/lucene/contrib/queries/src/java/org/apache/lucene/search/regex/JakartaRegexpCapabilities.java Wed Jul 13 09:04:52 2011
@@ -36,6 +36,7 @@ import java.lang.reflect.Method;
 public class JakartaRegexpCapabilities implements RegexCapabilities {
   private static Field prefixField;
   private static Method getPrefixMethod;
+
   static {
     try {
       getPrefixMethod = REProgram.class.getMethod("getPrefix");
@@ -76,8 +77,7 @@ public class JakartaRegexpCapabilities i
    * 
    * @param flags The matching style
    */
-  public JakartaRegexpCapabilities(int flags)
-  {
+  public JakartaRegexpCapabilities(int flags) {
     this.flags = flags;
   }
   
@@ -95,15 +95,22 @@ public class JakartaRegexpCapabilities i
 
   @Override
   public boolean equals(Object obj) {
-    if (this == obj) return true;
-    if (obj == null) return false;
-    if (getClass() != obj.getClass()) return false;
+    if (this == obj) {
+      return true;
+    }
+    if (obj == null) {
+      return false;
+    }
+    if (getClass() != obj.getClass()) {
+      return false;
+    }
+    
     JakartaRegexpCapabilities other = (JakartaRegexpCapabilities) obj;
-    if (flags != other.flags) return false;
-    return true;
+    return flags == other.flags;
   }
 
   class JakartaRegexMatcher implements RegexCapabilities.RegexMatcher {
+    
     private RE regexp;
     private final CharsRef utf16 = new CharsRef(10);
     private final CharacterIterator utf16wrapper = new CharacterIterator() {

Modified: lucene/dev/trunk/lucene/contrib/queries/src/java/org/apache/lucene/search/regex/JavaUtilRegexCapabilities.java
URL: http://svn.apache.org/viewvc/lucene/dev/trunk/lucene/contrib/queries/src/java/org/apache/lucene/search/regex/JavaUtilRegexCapabilities.java?rev=1145916&r1=1145915&r2=1145916&view=diff
==============================================================================
--- lucene/dev/trunk/lucene/contrib/queries/src/java/org/apache/lucene/search/regex/JavaUtilRegexCapabilities.java (original)
+++ lucene/dev/trunk/lucene/contrib/queries/src/java/org/apache/lucene/search/regex/JavaUtilRegexCapabilities.java Wed Jul 13 09:04:52 2011
@@ -33,6 +33,7 @@ import org.apache.lucene.util.UnicodeUti
  * term for the specified field in the index.
  */
 public class JavaUtilRegexCapabilities implements RegexCapabilities {
+
   private int flags = 0;
 
   // Define the optional flags from Pattern that can be used.
@@ -85,12 +86,18 @@ public class JavaUtilRegexCapabilities i
 
   @Override
   public boolean equals(Object obj) {
-    if (this == obj) return true;
-    if (obj == null) return false;
-    if (getClass() != obj.getClass()) return false;
+    if (this == obj) {
+      return true;
+    }
+    if (obj == null) {
+      return false;
+    }
+    if (getClass() != obj.getClass()) {
+      return false;
+    }
+
     JavaUtilRegexCapabilities other = (JavaUtilRegexCapabilities) obj;
-    if (flags != other.flags) return false;
-    return true;
+    return flags == other.flags;
   }
 
   class JavaUtilRegexMatcher implements RegexCapabilities.RegexMatcher {

Modified: lucene/dev/trunk/lucene/contrib/queries/src/java/org/apache/lucene/search/regex/RegexQuery.java
URL: http://svn.apache.org/viewvc/lucene/dev/trunk/lucene/contrib/queries/src/java/org/apache/lucene/search/regex/RegexQuery.java?rev=1145916&r1=1145915&r2=1145916&view=diff
==============================================================================
--- lucene/dev/trunk/lucene/contrib/queries/src/java/org/apache/lucene/search/regex/RegexQuery.java (original)
+++ lucene/dev/trunk/lucene/contrib/queries/src/java/org/apache/lucene/search/regex/RegexQuery.java Wed Jul 13 09:04:52 2011
@@ -37,6 +37,7 @@ import java.io.IOException;
  * @see RegexTermsEnum
  */
 public class RegexQuery extends MultiTermQuery implements RegexQueryCapable {
+
   private RegexCapabilities regexImpl = new JavaUtilRegexCapabilities();
   private Term term;
 
@@ -46,7 +47,9 @@ public class RegexQuery extends MultiTer
     this.term = term;
   }
   
-  public Term getTerm() { return term; }
+  public Term getTerm() {
+    return term;
+  }
 
   /**
    * Defines which {@link RegexCapabilities} implementation is used by this instance.
@@ -92,16 +95,33 @@ public class RegexQuery extends MultiTer
 
   @Override
   public boolean equals(Object obj) {
-    if (this == obj) return true;
-    if (!super.equals(obj)) return false;
-    if (getClass() != obj.getClass()) return false;
+    if (this == obj) {
+      return true;
+    }
+    if (!super.equals(obj)) {
+      return false;
+    }
+    if (getClass() != obj.getClass()) {
+      return false;
+    }
+
     RegexQuery other = (RegexQuery) obj;
     if (regexImpl == null) {
-      if (other.regexImpl != null) return false;
-    } else if (!regexImpl.equals(other.regexImpl)) return false;
+      if (other.regexImpl != null) {
+        return false;
+      }
+    } else if (!regexImpl.equals(other.regexImpl)) {
+      return false;
+    }
+
     if (term == null) {
-      if (other.term != null) return false;
-    } else if (!term.equals(other.term)) return false;
+      if (other.term != null) {
+        return false;
+      }
+    } else if (!term.equals(other.term)) {
+      return false;
+    }
+    
     return true;
   }
 }

Modified: lucene/dev/trunk/lucene/contrib/queries/src/java/org/apache/lucene/search/regex/RegexQueryCapable.java
URL: http://svn.apache.org/viewvc/lucene/dev/trunk/lucene/contrib/queries/src/java/org/apache/lucene/search/regex/RegexQueryCapable.java?rev=1145916&r1=1145915&r2=1145916&view=diff
==============================================================================
--- lucene/dev/trunk/lucene/contrib/queries/src/java/org/apache/lucene/search/regex/RegexQueryCapable.java (original)
+++ lucene/dev/trunk/lucene/contrib/queries/src/java/org/apache/lucene/search/regex/RegexQueryCapable.java Wed Jul 13 09:04:52 2011
@@ -22,6 +22,7 @@ package org.apache.lucene.search.regex;
  * Defines methods for regular expression supporting Querys to use.
  */
 public interface RegexQueryCapable {
+  
   void setRegexImplementation(RegexCapabilities impl);
   RegexCapabilities getRegexImplementation();
 }

Modified: lucene/dev/trunk/lucene/contrib/queries/src/java/org/apache/lucene/search/regex/RegexTermsEnum.java
URL: http://svn.apache.org/viewvc/lucene/dev/trunk/lucene/contrib/queries/src/java/org/apache/lucene/search/regex/RegexTermsEnum.java?rev=1145916&r1=1145915&r2=1145916&view=diff
==============================================================================
--- lucene/dev/trunk/lucene/contrib/queries/src/java/org/apache/lucene/search/regex/RegexTermsEnum.java (original)
+++ lucene/dev/trunk/lucene/contrib/queries/src/java/org/apache/lucene/search/regex/RegexTermsEnum.java Wed Jul 13 09:04:52 2011
@@ -34,6 +34,7 @@ import java.io.IOException;
  */
 
 public class RegexTermsEnum extends FilteredTermsEnum {
+
   private RegexCapabilities.RegexMatcher regexImpl;
   private final BytesRef prefixRef;
 
@@ -43,7 +44,9 @@ public class RegexTermsEnum extends Filt
     this.regexImpl = regexCap.compile(text);
 
     String pre = regexImpl.prefix();
-    if (pre == null) pre = "";
+    if (pre == null) {
+      pre = "";
+    }
 
     setInitialSeekTerm(prefixRef = new BytesRef(pre));
   }