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Posted to commits@polygene.apache.org by ni...@apache.org on 2015/07/31 04:59:25 UTC
[45/81] [abbrv] [partial] zest-java git commit: First round of
changes to move to org.apache.zest namespace.
http://git-wip-us.apache.org/repos/asf/zest-java/blob/061ddaa0/core/api/src/main/java/org/apache/zest/api/query/QueryExpressions.java
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diff --git a/core/api/src/main/java/org/apache/zest/api/query/QueryExpressions.java b/core/api/src/main/java/org/apache/zest/api/query/QueryExpressions.java
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@@ -0,0 +1,944 @@
+/*
+ * Copyright 2007-2011 Rickard Öberg.
+ * Copyright 2007-2010 Niclas Hedhman.
+ * Copyright 2008 Alin Dreghiciu.
+ * Copyright 2012 Stanislav Muhametsin.
+ * Copyright 2012-2014 Paul Merlin.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+ * ied.
+ *
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.apache.zest.api.query;
+
+import java.lang.reflect.Field;
+import java.lang.reflect.InvocationHandler;
+import java.lang.reflect.Method;
+import java.lang.reflect.Proxy;
+import java.lang.reflect.Type;
+import java.util.Arrays;
+import java.util.Collection;
+import org.apache.zest.api.association.Association;
+import org.apache.zest.api.association.GenericAssociationInfo;
+import org.apache.zest.api.association.ManyAssociation;
+import org.apache.zest.api.association.NamedAssociation;
+import org.apache.zest.api.composite.Composite;
+import org.apache.zest.api.entity.Identity;
+import org.apache.zest.api.injection.scope.State;
+import org.apache.zest.api.property.GenericPropertyInfo;
+import org.apache.zest.api.property.Property;
+import org.apache.zest.api.query.grammar.AndSpecification;
+import org.apache.zest.api.query.grammar.AssociationFunction;
+import org.apache.zest.api.query.grammar.AssociationNotNullSpecification;
+import org.apache.zest.api.query.grammar.AssociationNullSpecification;
+import org.apache.zest.api.query.grammar.ContainsAllSpecification;
+import org.apache.zest.api.query.grammar.ContainsSpecification;
+import org.apache.zest.api.query.grammar.EqSpecification;
+import org.apache.zest.api.query.grammar.GeSpecification;
+import org.apache.zest.api.query.grammar.GtSpecification;
+import org.apache.zest.api.query.grammar.LeSpecification;
+import org.apache.zest.api.query.grammar.LtSpecification;
+import org.apache.zest.api.query.grammar.ManyAssociationContainsSpecification;
+import org.apache.zest.api.query.grammar.ManyAssociationFunction;
+import org.apache.zest.api.query.grammar.MatchesSpecification;
+import org.apache.zest.api.query.grammar.NamedAssociationContainsNameSpecification;
+import org.apache.zest.api.query.grammar.NamedAssociationContainsSpecification;
+import org.apache.zest.api.query.grammar.NamedAssociationFunction;
+import org.apache.zest.api.query.grammar.NeSpecification;
+import org.apache.zest.api.query.grammar.NotSpecification;
+import org.apache.zest.api.query.grammar.OrSpecification;
+import org.apache.zest.api.query.grammar.OrderBy;
+import org.apache.zest.api.query.grammar.PropertyFunction;
+import org.apache.zest.api.query.grammar.PropertyNotNullSpecification;
+import org.apache.zest.api.query.grammar.PropertyNullSpecification;
+import org.apache.zest.api.query.grammar.PropertyReference;
+import org.apache.zest.api.query.grammar.Variable;
+import org.apache.zest.api.util.NullArgumentException;
+import org.apache.zest.functional.Specification;
+
+import static org.apache.zest.functional.Iterables.first;
+import static org.apache.zest.functional.Iterables.prepend;
+
+/**
+ * Static factory methods for query expressions and operators.
+ */
+public final class QueryExpressions
+{
+ // This is used for eq(Association,Composite)
+ private static final Method IDENTITY_METHOD;
+
+ static
+ {
+ try
+ {
+ IDENTITY_METHOD = Identity.class.getMethod( "identity" );
+ }
+ catch( NoSuchMethodException e )
+ {
+ throw new InternalError( "Zest Core API codebase is corrupted. Contact Zest team: QueryExpressions" );
+ }
+ }
+
+ // Templates and variables -----------------------------------------------|
+
+ /**
+ * Create a Query Template using the given type.
+ *
+ * @param <T> the type of the template
+ * @param clazz a class declaring the type of the template
+ *
+ * @return a new Query Template
+ */
+ public static <T> T templateFor( Class<T> clazz )
+ {
+ NullArgumentException.validateNotNull( "Template class", clazz );
+
+ if( clazz.isInterface() )
+ {
+ return clazz.cast( Proxy.newProxyInstance( clazz.getClassLoader(),
+ array( clazz ),
+ new TemplateHandler<T>( null, null, null, null ) ) );
+ }
+ else
+ {
+ try
+ {
+ T mixin = clazz.newInstance();
+ for( Field field : clazz.getFields() )
+ {
+ if( field.getAnnotation( State.class ) != null )
+ {
+ if( field.getType().equals( Property.class ) )
+ {
+ field.set( mixin,
+ Proxy.newProxyInstance( field.getType().getClassLoader(),
+ array( field.getType() ),
+ new PropertyReferenceHandler<>( new PropertyFunction<T>( null, null, null, null, field ) ) ) );
+ }
+ else if( field.getType().equals( Association.class ) )
+ {
+ field.set( mixin,
+ Proxy.newProxyInstance( field.getType().getClassLoader(),
+ array( field.getType() ),
+ new AssociationReferenceHandler<>( new AssociationFunction<T>( null, null, null, field ) ) ) );
+ }
+ else if( field.getType().equals( ManyAssociation.class ) )
+ {
+ field.set( mixin,
+ Proxy.newProxyInstance( field.getType().getClassLoader(),
+ array( field.getType() ),
+ new ManyAssociationReferenceHandler<>( new ManyAssociationFunction<T>( null, null, null, field ) ) ) );
+ }
+ else if( field.getType().equals( NamedAssociation.class ) )
+ {
+ field.set( mixin,
+ Proxy.newProxyInstance( field.getType().getClassLoader(),
+ array( field.getType() ),
+ new NamedAssociationReferenceHandler<>( new NamedAssociationFunction<T>( null, null, null, field ) ) ) );
+ }
+ }
+ }
+ return mixin;
+ }
+ catch( IllegalAccessException | IllegalArgumentException | InstantiationException | SecurityException e )
+ {
+ throw new IllegalArgumentException( "Cannot use class as template", e );
+ }
+ }
+ }
+
+ /**
+ * Create a Query Template using the given mixin class and association.
+ *
+ * @param <T> the type of the template
+ * @param mixinType a class declaring the type of the template
+ * @param association an association
+ *
+ * @return a new Query Template
+ */
+ public static <T> T templateFor( final Class<T> mixinType, Association<?> association )
+ {
+ NullArgumentException.validateNotNull( "Mixin class", mixinType );
+ NullArgumentException.validateNotNull( "Association", association );
+ return mixinType.cast( Proxy.newProxyInstance( mixinType.getClassLoader(),
+ array( mixinType ),
+ new TemplateHandler<T>( null,
+ association( association ),
+ null,
+ null ) ) );
+ }
+
+ public static <T> T oneOf( final ManyAssociation<T> association )
+ {
+ NullArgumentException.validateNotNull( "Association", association );
+ return association.get( 0 );
+ }
+
+ public static <T> T oneOf( final NamedAssociation<T> association )
+ {
+ NullArgumentException.validateNotNull( "Association", association );
+ return association.get( first( association ) );
+ }
+
+ /**
+ * Create a new Query Variable.
+ *
+ * @param name a name for the Variable
+ *
+ * @return a new Query Variable.
+ */
+ public static Variable variable( String name )
+ {
+ NullArgumentException.validateNotNull( "Variable name", name );
+ return new Variable( name );
+ }
+
+ /**
+ * Create a new Query Template PropertyFunction.
+ *
+ * @param <T> type of the Property
+ * @param property a Property
+ *
+ * @return a new Query Template PropertyFunction
+ */
+ @SuppressWarnings( "unchecked" )
+ public static <T> PropertyFunction<T> property( Property<T> property )
+ {
+ return ( (PropertyReferenceHandler<T>) Proxy.getInvocationHandler( property ) ).property();
+ }
+
+ /**
+ * Create a new Query Property instance.
+ *
+ * @param <T> type of the Property
+ * @param mixinClass mixin of the Property
+ * @param fieldName name of the Property field
+ *
+ * @return a new Query Property instance for the given mixin and property name.
+ */
+ @SuppressWarnings( "unchecked" )
+ public static <T> Property<T> property( Class<?> mixinClass, String fieldName )
+ {
+ try
+ {
+ Field field = mixinClass.getField( fieldName );
+ if( !Property.class.isAssignableFrom( field.getType() ) )
+ {
+ throw new IllegalArgumentException( "Field must be of type Property<?>" );
+ }
+ return (Property<T>) Proxy.newProxyInstance(
+ mixinClass.getClassLoader(),
+ array( field.getType() ),
+ new PropertyReferenceHandler<>( new PropertyFunction<T>( null, null, null, null, field ) ) );
+ }
+ catch( NoSuchFieldException e )
+ {
+ throw new IllegalArgumentException( "No such field '" + fieldName + "' in mixin " + mixinClass.getName() );
+ }
+ }
+
+ /**
+ * Create a new Query Template AssociationFunction.
+ *
+ * @param <T> type of the Association
+ * @param association an Association
+ *
+ * @return a new Query Template AssociationFunction
+ */
+ @SuppressWarnings( "unchecked" )
+ public static <T> AssociationFunction<T> association( Association<T> association )
+ {
+ return ( (AssociationReferenceHandler<T>) Proxy.getInvocationHandler( association ) ).association();
+ }
+
+ /**
+ * Create a new Query Template ManyAssociationFunction.
+ *
+ * @param <T> type of the ManyAssociation
+ * @param association a ManyAssociation
+ *
+ * @return a new Query Template ManyAssociationFunction
+ */
+ @SuppressWarnings( "unchecked" )
+ public static <T> ManyAssociationFunction<T> manyAssociation( ManyAssociation<T> association )
+ {
+ return ( (ManyAssociationReferenceHandler<T>) Proxy.getInvocationHandler( association ) ).manyAssociation();
+ }
+
+ /**
+ * Create a new Query Template NamedAssociationFunction.
+ *
+ * @param <T> type of the NamedAssociation
+ * @param association a NamedAssociation
+ *
+ * @return a new Query Template NamedAssociationFunction
+ */
+ @SuppressWarnings( "unchecked" )
+ public static <T> NamedAssociationFunction<T> namedAssociation( NamedAssociation<T> association )
+ {
+ return ( (NamedAssociationReferenceHandler<T>) Proxy.getInvocationHandler( association ) ).namedAssociation();
+ }
+
+ // And/Or/Not ------------------------------------------------------------|
+ /**
+ * Create a new AND specification.
+ *
+ * @param left first operand
+ * @param right second operand
+ * @param optionalRight optional operands
+ *
+ * @return a new AND specification
+ */
+ @SafeVarargs
+ public static AndSpecification and( Specification<Composite> left,
+ Specification<Composite> right,
+ Specification<Composite>... optionalRight
+ )
+ {
+ return new AndSpecification( prepend( left, prepend( right, Arrays.asList( optionalRight ) ) ) );
+ }
+
+ /**
+ * Create a new OR specification.
+ *
+ * @param specs operands
+ *
+ * @return a new OR specification
+ */
+ @SafeVarargs
+ public static OrSpecification or( Specification<Composite>... specs )
+ {
+ return new OrSpecification( Arrays.asList( specs ) );
+ }
+
+ /**
+ * Create a new NOT specification.
+ *
+ * @param operand specification to be negated
+ *
+ * @return a new NOT specification
+ */
+ public static NotSpecification not( Specification<Composite> operand )
+ {
+ return new NotSpecification( operand );
+ }
+
+ // Comparisons -----------------------------------------------------------|
+
+ /**
+ * Create a new EQUALS specification for a Property.
+ *
+ * @param property a Property
+ * @param value its value
+ *
+ * @return a new EQUALS specification for a Property.
+ */
+ public static <T> EqSpecification<T> eq( Property<T> property, T value )
+ {
+ return new EqSpecification<>( property( property ), value );
+ }
+
+ /**
+ * Create a new EQUALS specification for a Property using a named Variable.
+ *
+ * @param property a Property
+ * @param variable a Query Variable
+ *
+ * @return a new EQUALS specification for a Property using a named Variable.
+ */
+ @SuppressWarnings( {"raw", "unchecked"} )
+ public static <T> EqSpecification<T> eq( Property<T> property, Variable variable )
+ {
+ return new EqSpecification( property( property ), variable );
+ }
+
+ /**
+ * Create a new EQUALS specification for an Association.
+ *
+ * @param association an Association
+ * @param value its value
+ *
+ * @return a new EQUALS specification for an Association.
+ */
+ public static <T> EqSpecification<String> eq( Association<T> association, T value )
+ {
+ return new EqSpecification<>( new PropertyFunction<String>( null,
+ association( association ),
+ null,
+ null,
+ IDENTITY_METHOD ),
+ value.toString() );
+ }
+
+ /**
+ * Create a new GREATER OR EQUALS specification for a Property.
+ *
+ * @param property a Property
+ * @param value its value
+ *
+ * @return a new GREATER OR EQUALS specification for a Property.
+ */
+ public static <T> GeSpecification<T> ge( Property<T> property, T value )
+ {
+ return new GeSpecification<>( property( property ), value );
+ }
+
+ /**
+ * Create a new GREATER OR EQUALS specification for a Property using a named Variable.
+ *
+ * @param property a Property
+ * @param variable a Query Variable
+ *
+ * @return a new GREATER OR EQUALS specification for a Property using a named Variable.
+ */
+ @SuppressWarnings( {"raw", "unchecked"} )
+ public static <T> GeSpecification<T> ge( Property<T> property, Variable variable )
+ {
+ return new GeSpecification( property( property ), variable );
+ }
+
+ /**
+ * Create a new GREATER THAN specification for a Property.
+ *
+ * @param property a Property
+ * @param value its value
+ *
+ * @return a new GREATER THAN specification for a Property.
+ */
+ public static <T> GtSpecification<T> gt( Property<T> property, T value )
+ {
+ return new GtSpecification<>( property( property ), value );
+ }
+
+ /**
+ * Create a new GREATER THAN specification for a Property using a named Variable.
+ *
+ * @param property a Property
+ * @param variable a Query Variable
+ *
+ * @return a new GREATER THAN specification for a Property using a named Variable.
+ */
+ @SuppressWarnings( {"raw", "unchecked"} )
+ public static <T> GtSpecification<T> gt( Property<T> property, Variable variable )
+ {
+ return new GtSpecification( property( property ), variable );
+ }
+
+ /**
+ * Create a new LESS OR EQUALS specification for a Property.
+ *
+ * @param property a Property
+ * @param value its value
+ *
+ * @return a new LESS OR EQUALS specification for a Property.
+ */
+ public static <T> LeSpecification<T> le( Property<T> property, T value )
+ {
+ return new LeSpecification<>( property( property ), value );
+ }
+
+ /**
+ * Create a new LESS OR EQUALS specification for a Property using a named Variable.
+ *
+ * @param property a Property
+ * @param variable a Query Variable
+ *
+ * @return a new LESS OR EQUALS specification for a Property using a named Variable.
+ */
+ @SuppressWarnings( {"raw", "unchecked"} )
+ public static <T> LeSpecification<T> le( Property<T> property, Variable variable )
+ {
+ return new LeSpecification( property( property ), variable );
+ }
+
+ /**
+ * Create a new LESSER THAN specification for a Property.
+ *
+ * @param property a Property
+ * @param value its value
+ *
+ * @return a new LESSER THAN specification for a Property.
+ */
+ public static <T> LtSpecification<T> lt( Property<T> property, T value )
+ {
+ return new LtSpecification<>( property( property ), value );
+ }
+
+ /**
+ * Create a new LESSER THAN specification for a Property using a named Variable.
+ *
+ * @param property a Property
+ * @param variable a Query Variable
+ *
+ * @return a new LESSER THAN specification for a Property using a named Variable.
+ */
+ @SuppressWarnings( {"raw", "unchecked"} )
+ public static <T> LtSpecification<T> lt( Property<T> property, Variable variable )
+ {
+ return new LtSpecification( property( property ), variable );
+ }
+
+ /**
+ * Create a new NOT EQUALS specification for a Property.
+ *
+ * @param property a Property
+ * @param value its value
+ *
+ * @return a new NOT EQUALS specification for a Property.
+ */
+ public static <T> NeSpecification<T> ne( Property<T> property, T value )
+ {
+ return new NeSpecification<>( property( property ), value );
+ }
+
+ /**
+ * Create a new NOT EQUALS specification for a Property using a named Variable.
+ *
+ * @param property a Property
+ * @param variable a Query Variable
+ *
+ * @return a new NOT EQUALS specification for a Property using a named Variable.
+ */
+ @SuppressWarnings( {"raw", "unchecked"} )
+ public static <T> NeSpecification<T> ne( Property<T> property, Variable variable )
+ {
+ return new NeSpecification( property( property ), variable );
+ }
+
+ /**
+ * Create a new REGULAR EXPRESSION specification for a Property.
+ *
+ * @param property a Property
+ * @param regexp its value
+ *
+ * @return a new REGULAR EXPRESSION specification for a Property.
+ */
+ public static MatchesSpecification matches( Property<String> property, String regexp )
+ {
+ return new MatchesSpecification( property( property ), regexp );
+ }
+
+ /**
+ * Create a new REGULAR EXPRESSION specification for a Property using a named Variable.
+ *
+ * @param property a Property
+ * @param variable a Query Variable
+ *
+ * @return a new REGULAR EXPRESSION specification for a Property using a named Variable.
+ */
+ public static MatchesSpecification matches( Property<String> property, Variable variable )
+ {
+ return new MatchesSpecification( property( property ), variable );
+ }
+
+ // Null checks -----------------------------------------------------------|
+
+ /**
+ * Create a new NOT NULL specification for a Property.
+ *
+ * @param property a Property
+ *
+ * @return a new NOT NULL specification for a Property.
+ */
+ public static <T> PropertyNotNullSpecification<T> isNotNull( Property<T> property )
+ {
+ return new PropertyNotNullSpecification<>( property( property ) );
+ }
+
+ /**
+ * Create a new NULL specification for a Property.
+ *
+ * @param property a Property
+ *
+ * @return a new NULL specification for a Property.
+ */
+ public static <T> PropertyNullSpecification<T> isNull( Property<T> property )
+ {
+ return new PropertyNullSpecification<>( property( property ) );
+ }
+
+ /**
+ * Create a new NOT NULL specification for an Association.
+ *
+ * @param association an Association
+ *
+ * @return a new NOT NULL specification for an Association.
+ */
+ public static <T> AssociationNotNullSpecification<T> isNotNull( Association<T> association )
+ {
+ return new AssociationNotNullSpecification<>( association( association ) );
+ }
+
+ /**
+ * Create a new NULL specification for an Association.
+ *
+ * @param association an Association
+ *
+ * @return a new NULL specification for an Association.
+ */
+ public static <T> AssociationNullSpecification<T> isNull( Association<T> association )
+ {
+ return new AssociationNullSpecification<>( association( association ) );
+ }
+
+ // Collections -----------------------------------------------------------|
+
+ /**
+ * Create a new CONTAINS ALL specification for a Collection Property.
+ *
+ * @param collectionProperty a Collection Property
+ * @param values its values
+ *
+ * @return a new CONTAINS ALL specification for a Collection Property.
+ */
+ public static <T> ContainsAllSpecification<T> containsAll( Property<? extends Collection<T>> collectionProperty,
+ Iterable<T> values )
+ {
+ NullArgumentException.validateNotNull( "Values", values );
+ return new ContainsAllSpecification<>( property( collectionProperty ), values );
+ }
+
+ /**
+ * Create a new CONTAINS ALL specification for a Collection Property using named Variables.
+ *
+ * @param collectionProperty a Collection Property
+ * @param variables named Variables
+ *
+ * @return a new CONTAINS ALL specification for a Collection Property using named Variables.
+ */
+ @SuppressWarnings( {"raw", "unchecked"} )
+ public static <T> ContainsAllSpecification<T> containsAllVariables(
+ Property<? extends Collection<T>> collectionProperty,
+ Iterable<Variable> variables )
+ {
+ NullArgumentException.validateNotNull( "Variables", variables );
+ return new ContainsAllSpecification( property( collectionProperty ), variables );
+ }
+
+ /**
+ * Create a new CONTAINS specification for a Collection Property.
+ *
+ * @param collectionProperty a Collection Property
+ * @param value the value
+ *
+ * @return a new CONTAINS specification for a Collection Property.
+ */
+ public static <T> ContainsSpecification<T> contains( Property<? extends Collection<T>> collectionProperty,
+ T value )
+ {
+ NullArgumentException.validateNotNull( "Value", value );
+ return new ContainsSpecification<>( property( collectionProperty ), value );
+ }
+
+ /**
+ * Create a new CONTAINS specification for a Collection Property using named Variables.
+ *
+ * @param collectionProperty a Collection Property
+ * @param variable named Variable
+ *
+ * @return a new CONTAINS specification for a Collection Property using named Variables.
+ */
+ @SuppressWarnings( {"raw", "unchecked"} )
+ public static <T> ContainsSpecification<T> contains( Property<? extends Collection<T>> collectionProperty,
+ Variable variable )
+ {
+ NullArgumentException.validateNotNull( "Variable", variable );
+ return new ContainsSpecification( property( collectionProperty ), variable );
+ }
+
+ /**
+ * Create a new CONTAINS specification for a ManyAssociation.
+ *
+ * @param manyAssoc a ManyAssociation
+ * @param value the value
+ *
+ * @return a new CONTAINS specification for a ManyAssociation.
+ */
+ public static <T> ManyAssociationContainsSpecification<T> contains( ManyAssociation<T> manyAssoc, T value )
+ {
+ return new ManyAssociationContainsSpecification<>( manyAssociation( manyAssoc ), value );
+ }
+
+ /**
+ * Create a new CONTAINS specification for a NamedAssociation.
+ *
+ * @param namedAssoc a NamedAssociation
+ * @param value the value
+ *
+ * @return a new CONTAINS specification for a NamedAssociation.
+ */
+ public static <T> NamedAssociationContainsSpecification<T> contains( NamedAssociation<T> namedAssoc, T value )
+ {
+ return new NamedAssociationContainsSpecification<>( namedAssociation( namedAssoc ), value );
+ }
+
+ /**
+ * Create a new CONTAINS NAME specification for a NamedAssociation.
+ *
+ * @param namedAssoc a NamedAssociation
+ * @param name the name
+ *
+ * @return a new CONTAINS NAME specification for a NamedAssociation.
+ */
+ public static <T> NamedAssociationContainsNameSpecification<T> containsName( NamedAssociation<T> namedAssoc,
+ String name )
+ {
+ return new NamedAssociationContainsNameSpecification<>( namedAssociation( namedAssoc ), name );
+ }
+
+ // Ordering --------------------------------------------------------------|
+ /**
+ * Create a new Query ascending order segment for a Property.
+ *
+ * @param <T> type of the Property
+ * @param property a Property
+ *
+ * @return a new Query ascending order segment for a Property.
+ */
+ public static <T> OrderBy orderBy( final Property<T> property )
+ {
+ return orderBy( property, OrderBy.Order.ASCENDING );
+ }
+
+ /**
+ * Create a new Query ordering segment for a Property.
+ *
+ * @param <T> type of the Property
+ * @param property a Property
+ * @param order ascending or descending
+ *
+ * @return a new Query ordering segment for a Property.
+ */
+ public static <T> OrderBy orderBy( final Property<T> property, final OrderBy.Order order )
+ {
+ return new OrderBy( property( property ), order );
+ }
+
+ // Query Templates InvocationHandlers ------------------------------------|
+
+ private static class TemplateHandler<T>
+ implements InvocationHandler
+ {
+ private final PropertyFunction<?> compositeProperty;
+ private final AssociationFunction<?> compositeAssociation;
+ private final ManyAssociationFunction<?> compositeManyAssociation;
+ private final NamedAssociationFunction<?> compositeNamedAssociation;
+
+ private TemplateHandler( PropertyFunction<?> compositeProperty,
+ AssociationFunction<?> compositeAssociation,
+ ManyAssociationFunction<?> compositeManyAssociation,
+ NamedAssociationFunction<?> compositeNamedAssociation
+ )
+ {
+ this.compositeProperty = compositeProperty;
+ this.compositeAssociation = compositeAssociation;
+ this.compositeManyAssociation = compositeManyAssociation;
+ this.compositeNamedAssociation = compositeNamedAssociation;
+ }
+
+ @Override
+ public Object invoke( Object o, Method method, Object[] objects )
+ throws Throwable
+ {
+ if( Property.class.isAssignableFrom( method.getReturnType() ) )
+ {
+ return Proxy.newProxyInstance(
+ method.getReturnType().getClassLoader(),
+ array( method.getReturnType() ),
+ new PropertyReferenceHandler<>( new PropertyFunction<T>( compositeProperty,
+ compositeAssociation,
+ compositeManyAssociation,
+ compositeNamedAssociation,
+ method ) ) );
+ }
+ else if( Association.class.isAssignableFrom( method.getReturnType() ) )
+ {
+ return Proxy.newProxyInstance(
+ method.getReturnType().getClassLoader(),
+ array( method.getReturnType() ),
+ new AssociationReferenceHandler<>( new AssociationFunction<T>( compositeAssociation,
+ compositeManyAssociation,
+ compositeNamedAssociation,
+ method ) ) );
+ }
+ else if( ManyAssociation.class.isAssignableFrom( method.getReturnType() ) )
+ {
+ return Proxy.newProxyInstance(
+ method.getReturnType().getClassLoader(),
+ array( method.getReturnType() ),
+ new ManyAssociationReferenceHandler<>( new ManyAssociationFunction<T>( compositeAssociation,
+ compositeManyAssociation,
+ compositeNamedAssociation,
+ method ) ) );
+ }
+ else if( NamedAssociation.class.isAssignableFrom( method.getReturnType() ) )
+ {
+ return Proxy.newProxyInstance(
+ method.getReturnType().getClassLoader(),
+ array( method.getReturnType() ),
+ new NamedAssociationReferenceHandler<>( new NamedAssociationFunction<T>( compositeAssociation,
+ compositeManyAssociation,
+ compositeNamedAssociation,
+ method ) ) );
+ }
+
+ return null;
+ }
+ }
+
+ private static class PropertyReferenceHandler<T>
+ implements InvocationHandler
+ {
+ private final PropertyFunction<T> property;
+
+ private PropertyReferenceHandler( PropertyFunction<T> property )
+ {
+ this.property = property;
+ }
+
+ private PropertyFunction<T> property()
+ {
+ return property;
+ }
+
+ @Override
+ public Object invoke( Object o, final Method method, Object[] objects )
+ throws Throwable
+ {
+ if( method.equals( Property.class.getMethod( "get" ) ) )
+ {
+ Type propertyType = GenericPropertyInfo.propertyTypeOf( property.accessor() );
+ if( propertyType.getClass().equals( Class.class ) )
+ {
+ return Proxy.newProxyInstance( method.getDeclaringClass().getClassLoader(),
+ array( (Class<?>) propertyType, PropertyReference.class ),
+ new TemplateHandler<T>( property, null, null, null ) );
+ }
+ }
+
+ return null;
+ }
+ }
+
+ private static class AssociationReferenceHandler<T>
+ implements InvocationHandler
+ {
+ private final AssociationFunction<T> association;
+
+ private AssociationReferenceHandler( AssociationFunction<T> association )
+ {
+ this.association = association;
+ }
+
+ private AssociationFunction<T> association()
+ {
+ return association;
+ }
+
+ @Override
+ public Object invoke( Object o, final Method method, Object[] objects )
+ throws Throwable
+ {
+ if( method.equals( Association.class.getMethod( "get" ) ) )
+ {
+ Type associationType = GenericAssociationInfo.associationTypeOf( association.accessor() );
+ if( associationType.getClass().equals( Class.class ) )
+ {
+ return Proxy.newProxyInstance( method.getDeclaringClass().getClassLoader(),
+ array( (Class) associationType, PropertyReference.class ),
+ new TemplateHandler<T>( null, association, null, null ) );
+ }
+ }
+
+ return null;
+ }
+ }
+
+ private static class ManyAssociationReferenceHandler<T>
+ implements InvocationHandler
+ {
+ private final ManyAssociationFunction<T> manyAssociation;
+
+ private ManyAssociationReferenceHandler( ManyAssociationFunction<T> manyAssociation )
+ {
+ this.manyAssociation = manyAssociation;
+ }
+
+ public ManyAssociationFunction<T> manyAssociation()
+ {
+ return manyAssociation;
+ }
+
+ @Override
+ public Object invoke( Object o, final Method method, Object[] objects )
+ throws Throwable
+ {
+ if( method.equals( ManyAssociation.class.getMethod( "get", Integer.TYPE ) ) )
+ {
+ Type manyAssociationType = GenericAssociationInfo.associationTypeOf( manyAssociation.accessor() );
+ if( manyAssociationType.getClass().equals( Class.class ) )
+ {
+ return Proxy.newProxyInstance( method.getDeclaringClass().getClassLoader(),
+ array( (Class) manyAssociationType, PropertyReference.class ),
+ new TemplateHandler<T>( null, null, manyAssociation, null ) );
+ }
+ }
+
+ return null;
+ }
+ }
+
+ private static class NamedAssociationReferenceHandler<T>
+ implements InvocationHandler
+ {
+ private final NamedAssociationFunction<T> namedAssociation;
+
+ private NamedAssociationReferenceHandler( NamedAssociationFunction<T> namedAssociation )
+ {
+ this.namedAssociation = namedAssociation;
+ }
+
+ public NamedAssociationFunction<T> namedAssociation()
+ {
+ return namedAssociation;
+ }
+
+ @Override
+ public Object invoke( Object o, final Method method, Object[] objects )
+ throws Throwable
+ {
+ if( method.equals( NamedAssociation.class.getMethod( "get", String.class ) ) )
+ {
+ Type namedAssociationType = GenericAssociationInfo.associationTypeOf( namedAssociation.accessor() );
+ if( namedAssociationType.getClass().equals( Class.class ) )
+ {
+ return Proxy.newProxyInstance( method.getDeclaringClass().getClassLoader(),
+ array( (Class) namedAssociationType, PropertyReference.class ),
+ new TemplateHandler<T>( null, null, null, namedAssociation ) );
+ }
+ }
+
+ return null;
+ }
+ }
+
+ @SafeVarargs
+ private static <T> T[] array( T... array )
+ {
+ return array;
+ }
+
+ private QueryExpressions()
+ {
+ }
+}
http://git-wip-us.apache.org/repos/asf/zest-java/blob/061ddaa0/core/api/src/main/java/org/apache/zest/api/query/grammar/AndSpecification.java
----------------------------------------------------------------------
diff --git a/core/api/src/main/java/org/apache/zest/api/query/grammar/AndSpecification.java b/core/api/src/main/java/org/apache/zest/api/query/grammar/AndSpecification.java
new file mode 100644
index 0000000..3d710ad
--- /dev/null
+++ b/core/api/src/main/java/org/apache/zest/api/query/grammar/AndSpecification.java
@@ -0,0 +1,56 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+package org.apache.zest.api.query.grammar;
+
+import org.apache.zest.api.composite.Composite;
+import org.apache.zest.functional.Specification;
+import org.apache.zest.functional.Specifications;
+
+/**
+ * AND Specification.
+ */
+public class AndSpecification
+ extends BinarySpecification
+{
+
+ public AndSpecification( Iterable<Specification<Composite>> operands )
+ {
+ super( operands );
+ }
+
+ @Override
+ public boolean satisfiedBy( Composite item )
+ {
+ return Specifications.and( operands ).satisfiedBy( item );
+ }
+
+ @Override
+ public String toString()
+ {
+ StringBuilder sb = new StringBuilder( "(" );
+ String and = "";
+ for( Specification<Composite> operand : operands )
+ {
+ sb.append( and ).append( operand );
+ and = " and ";
+ }
+ return sb.append( ")" ).toString();
+ }
+
+}
http://git-wip-us.apache.org/repos/asf/zest-java/blob/061ddaa0/core/api/src/main/java/org/apache/zest/api/query/grammar/AssociationFunction.java
----------------------------------------------------------------------
diff --git a/core/api/src/main/java/org/apache/zest/api/query/grammar/AssociationFunction.java b/core/api/src/main/java/org/apache/zest/api/query/grammar/AssociationFunction.java
new file mode 100644
index 0000000..8355114
--- /dev/null
+++ b/core/api/src/main/java/org/apache/zest/api/query/grammar/AssociationFunction.java
@@ -0,0 +1,148 @@
+/*
+ * Copyright 2007-2011 Rickard Öberg.
+ * Copyright 2007-2010 Niclas Hedhman.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+ * ied.
+ *
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.apache.zest.api.query.grammar;
+
+import java.lang.reflect.AccessibleObject;
+import java.lang.reflect.Member;
+import java.lang.reflect.Proxy;
+import java.lang.reflect.Type;
+import org.apache.zest.api.association.Association;
+import org.apache.zest.api.association.AssociationStateHolder;
+import org.apache.zest.api.association.GenericAssociationInfo;
+import org.apache.zest.api.association.ManyAssociation;
+import org.apache.zest.api.association.NamedAssociation;
+import org.apache.zest.api.composite.Composite;
+import org.apache.zest.api.composite.CompositeInstance;
+import org.apache.zest.api.query.QueryExpressionException;
+import org.apache.zest.api.util.Classes;
+import org.apache.zest.functional.Function;
+
+import static org.apache.zest.api.util.Classes.typeOf;
+
+/**
+ * Function to get Entity Associations
+ */
+public class AssociationFunction<T>
+ implements Function<Composite, Association<T>>
+{
+ private final AssociationFunction<?> traversedAssociation;
+ private final ManyAssociationFunction<?> traversedManyAssociation;
+ private final NamedAssociationFunction<?> traversedNamedAssociation;
+ private final AccessibleObject accessor;
+
+ public AssociationFunction( AssociationFunction<?> traversedAssociation,
+ ManyAssociationFunction<?> traversedManyAssociation,
+ NamedAssociationFunction<?> traversedNamedAssociation,
+ AccessibleObject accessor
+ )
+ {
+ this.traversedAssociation = traversedAssociation;
+ this.traversedManyAssociation = traversedManyAssociation;
+ this.traversedNamedAssociation = traversedNamedAssociation;
+ this.accessor = accessor;
+
+ Type returnType = typeOf( accessor );
+ if( !Association.class.isAssignableFrom( Classes.RAW_CLASS.map( returnType ) )
+ && !ManyAssociation.class.isAssignableFrom( Classes.RAW_CLASS.map( returnType ) )
+ && !NamedAssociation.class.isAssignableFrom( Classes.RAW_CLASS.map( returnType ) ) )
+ {
+ throw new QueryExpressionException( "Unsupported association type:" + returnType );
+ }
+ Type associationTypeAsType = GenericAssociationInfo.toAssociationType( returnType );
+ if( !( associationTypeAsType instanceof Class ) )
+ {
+ throw new QueryExpressionException( "Unsupported association type:" + associationTypeAsType );
+ }
+ }
+
+ public AssociationFunction<?> traversedAssociation()
+ {
+ return traversedAssociation;
+ }
+
+ public ManyAssociationFunction<?> traversedManyAssociation()
+ {
+ return traversedManyAssociation;
+ }
+
+ public NamedAssociationFunction<?> traversedNamedAssociation()
+ {
+ return traversedNamedAssociation;
+ }
+
+ public AccessibleObject accessor()
+ {
+ return accessor;
+ }
+
+ @Override
+ public Association<T> map( Composite entity )
+ {
+ try
+ {
+ Object target = entity;
+ if( traversedAssociation != null )
+ {
+ Association<?> association = traversedAssociation.map( entity );
+ if( association == null )
+ {
+ return null;
+ }
+ target = association.get();
+ }
+ else if( traversedManyAssociation != null )
+ {
+ throw new IllegalArgumentException( "Cannot evaluate a ManyAssociation" );
+ }
+ else if( traversedNamedAssociation != null )
+ {
+ throw new IllegalArgumentException( "Cannot evaluate a NamedAssociation" );
+ }
+
+ if( target == null )
+ {
+ return null;
+ }
+
+ CompositeInstance handler = (CompositeInstance) Proxy.getInvocationHandler( target );
+ return ( (AssociationStateHolder) handler.state() ).associationFor( accessor );
+ }
+ catch( IllegalArgumentException e )
+ {
+ throw e;
+ }
+ catch( Throwable e )
+ {
+ throw new IllegalArgumentException( e );
+ }
+ }
+
+ @Override
+ public String toString()
+ {
+ if( traversedAssociation != null )
+ {
+ return traversedAssociation.toString() + "." + ( (Member) accessor ).getName();
+ }
+ else
+ {
+ return ( (Member) accessor ).getName();
+ }
+ }
+}
http://git-wip-us.apache.org/repos/asf/zest-java/blob/061ddaa0/core/api/src/main/java/org/apache/zest/api/query/grammar/AssociationNotNullSpecification.java
----------------------------------------------------------------------
diff --git a/core/api/src/main/java/org/apache/zest/api/query/grammar/AssociationNotNullSpecification.java b/core/api/src/main/java/org/apache/zest/api/query/grammar/AssociationNotNullSpecification.java
new file mode 100644
index 0000000..1376029
--- /dev/null
+++ b/core/api/src/main/java/org/apache/zest/api/query/grammar/AssociationNotNullSpecification.java
@@ -0,0 +1,67 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+package org.apache.zest.api.query.grammar;
+
+import org.apache.zest.api.association.Association;
+import org.apache.zest.api.composite.Composite;
+
+/**
+ * Association not null Specification.
+ */
+public class AssociationNotNullSpecification<T>
+ extends ExpressionSpecification
+{
+ private AssociationFunction<T> association;
+
+ public AssociationNotNullSpecification( AssociationFunction<T> association )
+ {
+ this.association = association;
+ }
+
+ public AssociationFunction<T> association()
+ {
+ return association;
+ }
+
+ @Override
+ public boolean satisfiedBy( Composite item )
+ {
+ try
+ {
+ Association<T> assoc = association.map( item );
+
+ if( assoc == null )
+ {
+ return false;
+ }
+
+ return assoc.get() != null;
+ }
+ catch( IllegalArgumentException e )
+ {
+ return false;
+ }
+ }
+
+ @Override
+ public String toString()
+ {
+ return association.toString() + "is not null";
+ }
+}
http://git-wip-us.apache.org/repos/asf/zest-java/blob/061ddaa0/core/api/src/main/java/org/apache/zest/api/query/grammar/AssociationNullSpecification.java
----------------------------------------------------------------------
diff --git a/core/api/src/main/java/org/apache/zest/api/query/grammar/AssociationNullSpecification.java b/core/api/src/main/java/org/apache/zest/api/query/grammar/AssociationNullSpecification.java
new file mode 100644
index 0000000..7dd72b2
--- /dev/null
+++ b/core/api/src/main/java/org/apache/zest/api/query/grammar/AssociationNullSpecification.java
@@ -0,0 +1,67 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+package org.apache.zest.api.query.grammar;
+
+import org.apache.zest.api.association.Association;
+import org.apache.zest.api.composite.Composite;
+
+/**
+ * Association null Specification.
+ */
+public class AssociationNullSpecification<T>
+ extends ExpressionSpecification
+{
+ private AssociationFunction<T> association;
+
+ public AssociationNullSpecification( AssociationFunction<T> association )
+ {
+ this.association = association;
+ }
+
+ public AssociationFunction<T> association()
+ {
+ return association;
+ }
+
+ @Override
+ public boolean satisfiedBy( Composite item )
+ {
+ try
+ {
+ Association<T> assoc = association.map( item );
+
+ if( assoc == null )
+ {
+ return true;
+ }
+
+ return assoc.get() == null;
+ }
+ catch( IllegalArgumentException e )
+ {
+ return true;
+ }
+ }
+
+ @Override
+ public String toString()
+ {
+ return association.toString() + "is null";
+ }
+}
http://git-wip-us.apache.org/repos/asf/zest-java/blob/061ddaa0/core/api/src/main/java/org/apache/zest/api/query/grammar/BinarySpecification.java
----------------------------------------------------------------------
diff --git a/core/api/src/main/java/org/apache/zest/api/query/grammar/BinarySpecification.java b/core/api/src/main/java/org/apache/zest/api/query/grammar/BinarySpecification.java
new file mode 100644
index 0000000..177caf0
--- /dev/null
+++ b/core/api/src/main/java/org/apache/zest/api/query/grammar/BinarySpecification.java
@@ -0,0 +1,41 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+package org.apache.zest.api.query.grammar;
+
+import org.apache.zest.api.composite.Composite;
+import org.apache.zest.functional.Specification;
+
+/**
+ * Base binary Specification, used for AND and OR Specifications..
+ */
+public abstract class BinarySpecification
+ extends ExpressionSpecification
+{
+ protected final Iterable<Specification<Composite>> operands;
+
+ protected BinarySpecification( Iterable<Specification<Composite>> operands )
+ {
+ this.operands = operands;
+ }
+
+ public Iterable<Specification<Composite>> operands()
+ {
+ return operands;
+ }
+}
http://git-wip-us.apache.org/repos/asf/zest-java/blob/061ddaa0/core/api/src/main/java/org/apache/zest/api/query/grammar/ComparisonSpecification.java
----------------------------------------------------------------------
diff --git a/core/api/src/main/java/org/apache/zest/api/query/grammar/ComparisonSpecification.java b/core/api/src/main/java/org/apache/zest/api/query/grammar/ComparisonSpecification.java
new file mode 100644
index 0000000..c53fe00
--- /dev/null
+++ b/core/api/src/main/java/org/apache/zest/api/query/grammar/ComparisonSpecification.java
@@ -0,0 +1,76 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+package org.apache.zest.api.query.grammar;
+
+import org.apache.zest.api.composite.Composite;
+import org.apache.zest.api.property.Property;
+
+/**
+ * Base comparison Specification.
+ */
+public abstract class ComparisonSpecification<T>
+ extends ExpressionSpecification
+{
+ protected final PropertyFunction<T> property;
+ protected final T value;
+
+ public ComparisonSpecification( PropertyFunction<T> property, T value )
+ {
+ this.property = property;
+ this.value = value;
+ }
+
+ public PropertyFunction<T> property()
+ {
+ return property;
+ }
+
+ @Override
+ public final boolean satisfiedBy( Composite item )
+ {
+ try
+ {
+ Property<T> prop = property.map( item );
+
+ if( prop == null )
+ {
+ return false;
+ }
+
+ T propValue = prop.get();
+ if( propValue == null )
+ {
+ return false;
+ }
+
+ return compare( propValue );
+ }
+ catch( IllegalArgumentException e )
+ {
+ return false;
+ }
+ }
+
+ protected abstract boolean compare( T value );
+
+ public T value()
+ {
+ return value;
+ }
+}
http://git-wip-us.apache.org/repos/asf/zest-java/blob/061ddaa0/core/api/src/main/java/org/apache/zest/api/query/grammar/ContainsAllSpecification.java
----------------------------------------------------------------------
diff --git a/core/api/src/main/java/org/apache/zest/api/query/grammar/ContainsAllSpecification.java b/core/api/src/main/java/org/apache/zest/api/query/grammar/ContainsAllSpecification.java
new file mode 100644
index 0000000..c5221d2
--- /dev/null
+++ b/core/api/src/main/java/org/apache/zest/api/query/grammar/ContainsAllSpecification.java
@@ -0,0 +1,78 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+package org.apache.zest.api.query.grammar;
+
+import java.util.Collection;
+import org.apache.zest.api.composite.Composite;
+import org.apache.zest.functional.Iterables;
+
+/**
+ * Contains All Specification.
+ */
+public class ContainsAllSpecification<T>
+ extends ExpressionSpecification
+{
+ private PropertyFunction<? extends Collection<T>> collectionProperty;
+ private Iterable<T> valueCollection;
+
+ public ContainsAllSpecification( PropertyFunction<? extends Collection<T>> collectionProperty,
+ Iterable<T> valueCollection
+ )
+ {
+ this.collectionProperty = collectionProperty;
+ this.valueCollection = valueCollection;
+ }
+
+ public PropertyFunction<? extends Collection<T>> collectionProperty()
+ {
+ return collectionProperty;
+ }
+
+ public Iterable<T> containedValues()
+ {
+ return valueCollection;
+ }
+
+ @Override
+ public boolean satisfiedBy( Composite item )
+ {
+ Collection<T> collection = collectionProperty.map( item ).get();
+
+ if( collection == null )
+ {
+ return false;
+ }
+
+ for( T value : valueCollection )
+ {
+ if( !collection.contains( value ) )
+ {
+ return false;
+ }
+ }
+
+ return true;
+ }
+
+ @Override
+ public String toString()
+ {
+ return collectionProperty + " contains " + Iterables.toList( valueCollection );
+ }
+}
http://git-wip-us.apache.org/repos/asf/zest-java/blob/061ddaa0/core/api/src/main/java/org/apache/zest/api/query/grammar/ContainsSpecification.java
----------------------------------------------------------------------
diff --git a/core/api/src/main/java/org/apache/zest/api/query/grammar/ContainsSpecification.java b/core/api/src/main/java/org/apache/zest/api/query/grammar/ContainsSpecification.java
new file mode 100644
index 0000000..4f05aac
--- /dev/null
+++ b/core/api/src/main/java/org/apache/zest/api/query/grammar/ContainsSpecification.java
@@ -0,0 +1,67 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+package org.apache.zest.api.query.grammar;
+
+import java.util.Collection;
+import org.apache.zest.api.composite.Composite;
+
+/**
+ * Contains Specification.
+ */
+public class ContainsSpecification<T>
+ extends ExpressionSpecification
+{
+ private PropertyFunction<? extends Collection<T>> collectionProperty;
+ private T value;
+
+ public ContainsSpecification( PropertyFunction<? extends Collection<T>> collectionProperty, T value )
+ {
+ this.collectionProperty = collectionProperty;
+ this.value = value;
+ }
+
+ public PropertyFunction<? extends Collection<T>> collectionProperty()
+ {
+ return collectionProperty;
+ }
+
+ public T value()
+ {
+ return value;
+ }
+
+ @Override
+ public boolean satisfiedBy( Composite item )
+ {
+ Collection<T> collection = collectionProperty.map( item ).get();
+
+ if( collection == null )
+ {
+ return false;
+ }
+
+ return collection.contains( value );
+ }
+
+ @Override
+ public String toString()
+ {
+ return collectionProperty + " contains " + value;
+ }
+}
http://git-wip-us.apache.org/repos/asf/zest-java/blob/061ddaa0/core/api/src/main/java/org/apache/zest/api/query/grammar/EqSpecification.java
----------------------------------------------------------------------
diff --git a/core/api/src/main/java/org/apache/zest/api/query/grammar/EqSpecification.java b/core/api/src/main/java/org/apache/zest/api/query/grammar/EqSpecification.java
new file mode 100644
index 0000000..b7ed03c
--- /dev/null
+++ b/core/api/src/main/java/org/apache/zest/api/query/grammar/EqSpecification.java
@@ -0,0 +1,43 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+package org.apache.zest.api.query.grammar;
+
+/**
+ * Equals Specification.
+ */
+public class EqSpecification<T>
+ extends ComparisonSpecification<T>
+{
+ public EqSpecification( PropertyFunction<T> property, T value )
+ {
+ super( property, value );
+ }
+
+ @Override
+ protected boolean compare( T value )
+ {
+ return value.equals( this.value );
+ }
+
+ @Override
+ public String toString()
+ {
+ return property.toString() + "=" + value.toString();
+ }
+}
http://git-wip-us.apache.org/repos/asf/zest-java/blob/061ddaa0/core/api/src/main/java/org/apache/zest/api/query/grammar/ExpressionSpecification.java
----------------------------------------------------------------------
diff --git a/core/api/src/main/java/org/apache/zest/api/query/grammar/ExpressionSpecification.java b/core/api/src/main/java/org/apache/zest/api/query/grammar/ExpressionSpecification.java
new file mode 100644
index 0000000..f0dd6b2
--- /dev/null
+++ b/core/api/src/main/java/org/apache/zest/api/query/grammar/ExpressionSpecification.java
@@ -0,0 +1,60 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+package org.apache.zest.api.query.grammar;
+
+import org.apache.zest.api.composite.Composite;
+import org.apache.zest.functional.Specification;
+
+import static org.apache.zest.functional.Iterables.append;
+import static org.apache.zest.functional.Iterables.iterable;
+
+/**
+ * Base expression Specification.
+ */
+public abstract class ExpressionSpecification
+ implements Specification<Composite>
+{
+
+ @SuppressWarnings( "unchecked" )
+ public AndSpecification and( Specification<Composite> specification )
+ {
+ if( this instanceof AndSpecification )
+ {
+ return new AndSpecification( append( specification, ( (AndSpecification) this ).operands() ) );
+ }
+ else
+ {
+ return new AndSpecification( iterable( this, specification ) );
+ }
+ }
+
+ @SuppressWarnings( "unchecked" )
+ public OrSpecification or( Specification<Composite> specification )
+ {
+ if( this instanceof OrSpecification )
+ {
+ return new OrSpecification( append( specification, ( (OrSpecification) this ).operands() ) );
+ }
+ else
+ {
+ return new OrSpecification( iterable( this, specification ) );
+ }
+ }
+
+}
http://git-wip-us.apache.org/repos/asf/zest-java/blob/061ddaa0/core/api/src/main/java/org/apache/zest/api/query/grammar/GeSpecification.java
----------------------------------------------------------------------
diff --git a/core/api/src/main/java/org/apache/zest/api/query/grammar/GeSpecification.java b/core/api/src/main/java/org/apache/zest/api/query/grammar/GeSpecification.java
new file mode 100644
index 0000000..f012293
--- /dev/null
+++ b/core/api/src/main/java/org/apache/zest/api/query/grammar/GeSpecification.java
@@ -0,0 +1,44 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+package org.apache.zest.api.query.grammar;
+
+/**
+ * Greater or equals Specification.
+ */
+public class GeSpecification<T>
+ extends ComparisonSpecification<T>
+{
+ public GeSpecification( PropertyFunction<T> property, T value )
+ {
+ super( property, value );
+ }
+
+ @Override
+ @SuppressWarnings( "unchecked" )
+ protected boolean compare( T value )
+ {
+ return ( (Comparable) value ).compareTo( this.value ) >= 0;
+ }
+
+ @Override
+ public String toString()
+ {
+ return property.toString() + ">=" + value.toString();
+ }
+}
http://git-wip-us.apache.org/repos/asf/zest-java/blob/061ddaa0/core/api/src/main/java/org/apache/zest/api/query/grammar/GtSpecification.java
----------------------------------------------------------------------
diff --git a/core/api/src/main/java/org/apache/zest/api/query/grammar/GtSpecification.java b/core/api/src/main/java/org/apache/zest/api/query/grammar/GtSpecification.java
new file mode 100644
index 0000000..880fb67
--- /dev/null
+++ b/core/api/src/main/java/org/apache/zest/api/query/grammar/GtSpecification.java
@@ -0,0 +1,44 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+package org.apache.zest.api.query.grammar;
+
+/**
+ * Greater than Specification.
+ */
+public class GtSpecification<T>
+ extends ComparisonSpecification<T>
+{
+ public GtSpecification( PropertyFunction<T> property, T value )
+ {
+ super( property, value );
+ }
+
+ @Override
+ @SuppressWarnings( "unchecked" )
+ protected boolean compare( T value )
+ {
+ return ( (Comparable) value ).compareTo( this.value ) > 0;
+ }
+
+ @Override
+ public String toString()
+ {
+ return property.toString() + ">" + value.toString();
+ }
+}
http://git-wip-us.apache.org/repos/asf/zest-java/blob/061ddaa0/core/api/src/main/java/org/apache/zest/api/query/grammar/LeSpecification.java
----------------------------------------------------------------------
diff --git a/core/api/src/main/java/org/apache/zest/api/query/grammar/LeSpecification.java b/core/api/src/main/java/org/apache/zest/api/query/grammar/LeSpecification.java
new file mode 100644
index 0000000..3a28f16
--- /dev/null
+++ b/core/api/src/main/java/org/apache/zest/api/query/grammar/LeSpecification.java
@@ -0,0 +1,44 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+package org.apache.zest.api.query.grammar;
+
+/**
+ * Less or equals Specification.
+ */
+public class LeSpecification<T>
+ extends ComparisonSpecification<T>
+{
+ public LeSpecification( PropertyFunction<T> property, T value )
+ {
+ super( property, value );
+ }
+
+ @Override
+ @SuppressWarnings( "unchecked" )
+ protected boolean compare( T value )
+ {
+ return ( (Comparable) value ).compareTo( this.value ) <= 0;
+ }
+
+ @Override
+ public String toString()
+ {
+ return property.toString() + "<=" + value.toString();
+ }
+}
http://git-wip-us.apache.org/repos/asf/zest-java/blob/061ddaa0/core/api/src/main/java/org/apache/zest/api/query/grammar/LtSpecification.java
----------------------------------------------------------------------
diff --git a/core/api/src/main/java/org/apache/zest/api/query/grammar/LtSpecification.java b/core/api/src/main/java/org/apache/zest/api/query/grammar/LtSpecification.java
new file mode 100644
index 0000000..8f476c3
--- /dev/null
+++ b/core/api/src/main/java/org/apache/zest/api/query/grammar/LtSpecification.java
@@ -0,0 +1,44 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+package org.apache.zest.api.query.grammar;
+
+/**
+ * Lesser than Specification.
+ */
+public class LtSpecification<T>
+ extends ComparisonSpecification<T>
+{
+ public LtSpecification( PropertyFunction<T> property, T value )
+ {
+ super( property, value );
+ }
+
+ @Override
+ @SuppressWarnings( "unchecked" )
+ protected boolean compare( T value )
+ {
+ return ( (Comparable) value ).compareTo( this.value ) < 0;
+ }
+
+ @Override
+ public String toString()
+ {
+ return property.toString() + "<" + value.toString();
+ }
+}
http://git-wip-us.apache.org/repos/asf/zest-java/blob/061ddaa0/core/api/src/main/java/org/apache/zest/api/query/grammar/ManyAssociationContainsSpecification.java
----------------------------------------------------------------------
diff --git a/core/api/src/main/java/org/apache/zest/api/query/grammar/ManyAssociationContainsSpecification.java b/core/api/src/main/java/org/apache/zest/api/query/grammar/ManyAssociationContainsSpecification.java
new file mode 100644
index 0000000..a15bdb0
--- /dev/null
+++ b/core/api/src/main/java/org/apache/zest/api/query/grammar/ManyAssociationContainsSpecification.java
@@ -0,0 +1,65 @@
+/*
+ * Copyright 2007-2011 Rickard Öberg.
+ * Copyright 2007-2010 Niclas Hedhman.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+ * ied.
+ *
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.apache.zest.api.query.grammar;
+
+import org.apache.zest.api.association.ManyAssociation;
+import org.apache.zest.api.composite.Composite;
+
+/**
+ * ManyAssociation Contains Specification.
+ */
+public class ManyAssociationContainsSpecification<T>
+ extends ExpressionSpecification
+{
+ private final ManyAssociationFunction<T> manyAssociationFunction;
+ private final T value;
+
+ public ManyAssociationContainsSpecification( ManyAssociationFunction<T> manyAssociationFunction, T value )
+ {
+ this.manyAssociationFunction = manyAssociationFunction;
+ this.value = value;
+ }
+
+ public ManyAssociationFunction<T> manyAssociation()
+ {
+ return manyAssociationFunction;
+ }
+
+ public T value()
+ {
+ return value;
+ }
+
+ @Override
+ public boolean satisfiedBy( Composite item )
+ {
+ ManyAssociation<T> collection = manyAssociationFunction.map( item );
+ if( collection == null )
+ {
+ return false;
+ }
+ return collection.contains( value );
+ }
+
+ @Override
+ public String toString()
+ {
+ return manyAssociationFunction + " contains:" + value;
+ }
+}
http://git-wip-us.apache.org/repos/asf/zest-java/blob/061ddaa0/core/api/src/main/java/org/apache/zest/api/query/grammar/ManyAssociationFunction.java
----------------------------------------------------------------------
diff --git a/core/api/src/main/java/org/apache/zest/api/query/grammar/ManyAssociationFunction.java b/core/api/src/main/java/org/apache/zest/api/query/grammar/ManyAssociationFunction.java
new file mode 100644
index 0000000..540a901
--- /dev/null
+++ b/core/api/src/main/java/org/apache/zest/api/query/grammar/ManyAssociationFunction.java
@@ -0,0 +1,117 @@
+/*
+ * Copyright 2007-2011 Rickard Öberg.
+ * Copyright 2007-2010 Niclas Hedhman.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+ * ied.
+ *
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.apache.zest.api.query.grammar;
+
+import java.lang.reflect.AccessibleObject;
+import java.lang.reflect.Member;
+import java.lang.reflect.Proxy;
+import org.apache.zest.api.association.AssociationStateHolder;
+import org.apache.zest.api.association.ManyAssociation;
+import org.apache.zest.api.composite.Composite;
+import org.apache.zest.api.composite.CompositeInstance;
+import org.apache.zest.functional.Function;
+
+/**
+ * Function to get Entity ManyAssociations.
+ */
+public class ManyAssociationFunction<T>
+ implements Function<Composite, ManyAssociation<T>>
+{
+ private final AssociationFunction<?> traversedAssociation;
+ private final ManyAssociationFunction<?> traversedManyAssociation;
+ private final NamedAssociationFunction<?> traversedNamedAssociation;
+ private final AccessibleObject accessor;
+
+ public ManyAssociationFunction( AssociationFunction<?> traversedAssociation,
+ ManyAssociationFunction<?> traversedManyAssociation,
+ NamedAssociationFunction<?> traversedNamedAssociation,
+ AccessibleObject accessor
+ )
+ {
+ this.traversedAssociation = traversedAssociation;
+ this.traversedManyAssociation = traversedManyAssociation;
+ this.traversedNamedAssociation = traversedNamedAssociation;
+ this.accessor = accessor;
+ }
+
+ public AssociationFunction<?> traversedAssociation()
+ {
+ return traversedAssociation;
+ }
+
+ public ManyAssociationFunction<?> traversedManyAssociation()
+ {
+ return traversedManyAssociation;
+ }
+
+ public NamedAssociationFunction<?> traversedNamedAssociation()
+ {
+ return traversedNamedAssociation;
+ }
+
+ public AccessibleObject accessor()
+ {
+ return accessor;
+ }
+
+ @Override
+ public ManyAssociation<T> map( Composite entity )
+ {
+ try
+ {
+ Object target = entity;
+ if( traversedAssociation != null )
+ {
+ target = traversedAssociation.map( entity ).get();
+ }
+ if( traversedManyAssociation != null )
+ {
+ throw new IllegalArgumentException( "Cannot traverse ManyAssociations" );
+ }
+ if( traversedNamedAssociation != null )
+ {
+ throw new IllegalArgumentException( "Cannot traverse NamedAssociations" );
+ }
+
+ CompositeInstance handler = (CompositeInstance) Proxy.getInvocationHandler( target );
+ return ( (AssociationStateHolder) handler.state() ).manyAssociationFor( accessor );
+ }
+ catch( IllegalArgumentException e )
+ {
+ throw e;
+ }
+ catch( Throwable e )
+ {
+ throw new IllegalArgumentException( e );
+ }
+ }
+
+ @Override
+ public String toString()
+ {
+ if( traversedAssociation != null )
+ {
+ return traversedAssociation.toString() + "." + ( (Member) accessor ).getName();
+ }
+ else
+ {
+ return ( (Member) accessor ).getName();
+ }
+ }
+}
http://git-wip-us.apache.org/repos/asf/zest-java/blob/061ddaa0/core/api/src/main/java/org/apache/zest/api/query/grammar/MatchesSpecification.java
----------------------------------------------------------------------
diff --git a/core/api/src/main/java/org/apache/zest/api/query/grammar/MatchesSpecification.java b/core/api/src/main/java/org/apache/zest/api/query/grammar/MatchesSpecification.java
new file mode 100644
index 0000000..4f54a47
--- /dev/null
+++ b/core/api/src/main/java/org/apache/zest/api/query/grammar/MatchesSpecification.java
@@ -0,0 +1,93 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+package org.apache.zest.api.query.grammar;
+
+import org.apache.zest.api.composite.Composite;
+import org.apache.zest.api.property.Property;
+
+/**
+ * Regular expression match Specification.
+ */
+public class MatchesSpecification
+ extends ExpressionSpecification
+{
+ private PropertyFunction<String> property;
+ private Object value;
+
+ public MatchesSpecification( PropertyFunction<String> property, String regexp )
+ {
+ this.property = property;
+ this.value = regexp;
+ }
+
+ public MatchesSpecification( PropertyFunction<String> property, Variable variable )
+ {
+ this.property = property;
+ this.value = variable;
+ }
+
+ public PropertyFunction<String> property()
+ {
+ return property;
+ }
+
+ public Object value()
+ {
+ return value;
+ }
+
+ public String regexp()
+ {
+ return ( String ) value;
+ }
+
+ @Override
+ public boolean satisfiedBy( Composite item )
+ {
+ Property<String> prop = property.map( item );
+
+ if( prop == null )
+ {
+ return false;
+ }
+
+ String val = prop.get();
+
+ if( val == null )
+ {
+ return false;
+ }
+
+ return val.matches( ( String ) value );
+ }
+
+ @Override
+ public String toString()
+ {
+ return new StringBuilder()
+ .append( "( " )
+ .append( property )
+ .append( " matches " )
+ .append( "\"" )
+ .append( value )
+ .append( "\"" )
+ .append( " )" )
+ .toString();
+ }
+}
http://git-wip-us.apache.org/repos/asf/zest-java/blob/061ddaa0/core/api/src/main/java/org/apache/zest/api/query/grammar/NamedAssociationContainsNameSpecification.java
----------------------------------------------------------------------
diff --git a/core/api/src/main/java/org/apache/zest/api/query/grammar/NamedAssociationContainsNameSpecification.java b/core/api/src/main/java/org/apache/zest/api/query/grammar/NamedAssociationContainsNameSpecification.java
new file mode 100644
index 0000000..5af9a51
--- /dev/null
+++ b/core/api/src/main/java/org/apache/zest/api/query/grammar/NamedAssociationContainsNameSpecification.java
@@ -0,0 +1,65 @@
+/*
+ * Copyright 2011-2012 Niclas Hedhman.
+ * Copyright 2014 Paul Merlin.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+ * ied.
+ *
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.apache.zest.api.query.grammar;
+
+import org.apache.zest.api.association.NamedAssociation;
+import org.apache.zest.api.composite.Composite;
+
+/**
+ * NamedAssociation Contains Specification.
+ */
+public class NamedAssociationContainsNameSpecification<T>
+ extends ExpressionSpecification
+{
+ private final NamedAssociationFunction<T> namedAssociationFunction;
+ private final String name;
+
+ public NamedAssociationContainsNameSpecification( NamedAssociationFunction<T> namedAssociationFunction, String name )
+ {
+ this.namedAssociationFunction = namedAssociationFunction;
+ this.name = name;
+ }
+
+ public NamedAssociationFunction<T> namedAssociation()
+ {
+ return namedAssociationFunction;
+ }
+
+ public String name()
+ {
+ return name;
+ }
+
+ @Override
+ public boolean satisfiedBy( Composite item )
+ {
+ NamedAssociation<T> collection = namedAssociationFunction.map( item );
+ if( collection == null )
+ {
+ return false;
+ }
+ return collection.containsName( name );
+ }
+
+ @Override
+ public String toString()
+ {
+ return namedAssociationFunction + " contains name:" + name;
+ }
+}
http://git-wip-us.apache.org/repos/asf/zest-java/blob/061ddaa0/core/api/src/main/java/org/apache/zest/api/query/grammar/NamedAssociationContainsSpecification.java
----------------------------------------------------------------------
diff --git a/core/api/src/main/java/org/apache/zest/api/query/grammar/NamedAssociationContainsSpecification.java b/core/api/src/main/java/org/apache/zest/api/query/grammar/NamedAssociationContainsSpecification.java
new file mode 100644
index 0000000..e4e4f7b
--- /dev/null
+++ b/core/api/src/main/java/org/apache/zest/api/query/grammar/NamedAssociationContainsSpecification.java
@@ -0,0 +1,65 @@
+/*
+ * Copyright 2011-2012 Niclas Hedhman.
+ * Copyright 2014 Paul Merlin.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+ * ied.
+ *
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.apache.zest.api.query.grammar;
+
+import org.apache.zest.api.association.NamedAssociation;
+import org.apache.zest.api.composite.Composite;
+
+/**
+ * NamedAssociation Contains Specification.
+ */
+public class NamedAssociationContainsSpecification<T>
+ extends ExpressionSpecification
+{
+ private final NamedAssociationFunction<T> namedAssociationFunction;
+ private final T value;
+
+ public NamedAssociationContainsSpecification( NamedAssociationFunction<T> namedAssociationFunction, T value )
+ {
+ this.namedAssociationFunction = namedAssociationFunction;
+ this.value = value;
+ }
+
+ public NamedAssociationFunction<T> namedAssociation()
+ {
+ return namedAssociationFunction;
+ }
+
+ public T value()
+ {
+ return value;
+ }
+
+ @Override
+ public boolean satisfiedBy( Composite item )
+ {
+ NamedAssociation<T> collection = namedAssociationFunction.map( item );
+ if( collection == null )
+ {
+ return false;
+ }
+ return collection.nameOf( value ) != null;
+ }
+
+ @Override
+ public String toString()
+ {
+ return namedAssociationFunction + " contains:" + value;
+ }
+}