Package org.drools.rule.constraint

Examples of org.drools.rule.constraint.MvelConstraint

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                                                                "type",
                                                                getClass().getClassLoader() );

        final FieldValue field = FieldFactory.getInstance().getFieldValue( "cheddar" );

        final MvelConstraint constraint = new MvelConstraintTestUtil("type == \"cheddar\"", field, extractor);

        final AlphaNode alphaNode = new AlphaNode( buildContext.getNextId(),
                                                   constraint,
                                                   source,
                                                   buildContext );
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                                                                "type",
                                                                getClass().getClassLoader() );

        final FieldValue field = FieldFactory.getInstance().getFieldValue( "cheddar" );

        final MvelConstraint constraint = new MvelConstraintTestUtil("type == \"cheddar\"", field, extractor);

        final AlphaNode alphaNode = new AlphaNode( buildContext.getNextId(),
                                                   constraint,
                                                   source,
                                                   buildContext ); // no memory
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                                                            "type",
                                                            getClass().getClassLoader() );

        final FieldValue field = FieldFactory.getInstance().getFieldValue( "cheddar" );

        final MvelConstraint constraint = new MvelConstraintTestUtil("type == \"cheddar\"", field, extractor);

        pattern.addConstraint( constraint );
        rule1.addPattern( pattern );

        rule1.setConsequence( new Consequence() {
            private static final long serialVersionUID = 510l;

            public void evaluate(final KnowledgeHelper knowledgeHelper,
                                 final WorkingMemory workingMemory) throws Exception {
            }

            public void readExternal(ObjectInput in) throws IOException,
                                                    ClassNotFoundException {

            }

            public void writeExternal(ObjectOutput out) throws IOException {

            }
           
            public String getName() {
                return "default";
            }
        } );

        final Rule rule2 = new Rule( "test2" );
        final ClassObjectType cheeseObjectType2 = new ClassObjectType( Cheese.class );
        final Pattern pattern2 = new Pattern( 0,
                                              cheeseObjectType2 );

        final FieldValue field2 = FieldFactory.getInstance().getFieldValue( "stilton" );

        final MvelConstraint constraint2 = new MvelConstraintTestUtil("type == \"stilton\"", field, extractor);

        pattern2.addConstraint( constraint2 );
        rule2.addPattern( pattern2 );

        rule2.setConsequence( new Consequence() {
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                "type",
                getClass().getClassLoader());

        final FieldValue field = FieldFactory.getInstance().getFieldValue( "cheddar" );

        final MvelConstraint constraint = new MvelConstraintTestUtil("type == \"cheddar\"", field, extractor);

        pattern.addConstraint( constraint );
        rule.addPattern( pattern );

        rule.setConsequence( new Consequence() {
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                "type",
                getClass().getClassLoader());

        final FieldValue field = FieldFactory.getInstance().getFieldValue( "cheddar" );

        final MvelConstraint constraint = new MvelConstraintTestUtil("type == \"cheddar\"", field, extractor);

        pattern.addConstraint( constraint );
        rule1.addPattern( pattern );

        rule1.setConsequence( new Consequence() {
            private static final long serialVersionUID = 510l;

            public void evaluate(final KnowledgeHelper knowledgeHelper,
                                 final WorkingMemory workingMemory) throws Exception {
            }

            public void readExternal(ObjectInput in) throws IOException,
                                                    ClassNotFoundException {

            }

            public void writeExternal(ObjectOutput out) throws IOException {

            }
           
            public String getName() {
                return "default";
            }
        } );

        final Rule rule2 = new Rule( "test2" );
        final ClassObjectType cheeseObjectType2 = new ClassObjectType( Cheese.class );
        final Pattern pattern2 = new Pattern( 0,
                                              cheeseObjectType2 );

        final FieldValue field2 = FieldFactory.getInstance().getFieldValue( "stilton" );

        final MvelConstraint constraint2 = new MvelConstraintTestUtil("type == \"stilton\"", field, extractor);

        pattern2.addConstraint( constraint2 );
        rule2.addPattern( pattern2 );

        rule2.setConsequence( new Consequence() {
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        final ClassFieldReader extractor = store.getReader(Cheese.class,
                "type",
                getClass().getClassLoader());

        final MvelConstraint constraint = new MvelConstraintTestUtil( "type == \"cheddar\"",
                                                                      FieldFactory.getInstance().getFieldValue( "cheddar" ),
                                                                      extractor );

        final ContextEntry context = constraint.createContextEntry();

        final Cheese cheddar = new Cheese( "cheddar",
                                           5 );

        final InternalFactHandle cheddarHandle = (InternalFactHandle) workingMemory.insert( cheddar );

        // check constraint
        assertTrue( constraint.isAllowed( cheddarHandle,
                                          workingMemory,
                                          context ) );

        final Cheese stilton = new Cheese( "stilton",
                                           5 );

        final InternalFactHandle stiltonHandle = (InternalFactHandle) workingMemory.insert( stilton );

        // check constraint
        assertFalse( constraint.isAllowed( stiltonHandle,
                                           workingMemory,
                                           context ) );
    }
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        final ClassFieldReader extractor = store.getReader(Cheese.class,
                "price",
                getClass().getClassLoader());

        final MvelConstraint constraint = new MvelConstraintTestUtil( "price == 5",
                                                                      FieldFactory.getInstance().getFieldValue( 5 ),
                                                                      extractor );
        final ContextEntry context = constraint.createContextEntry();

        final Cheese cheddar = new Cheese( "cheddar",
                                           5 );

        final InternalFactHandle cheddarHandle = (InternalFactHandle) workingMemory.insert( cheddar );

        // check constraint
        assertTrue( constraint.isAllowed( cheddarHandle,
                                          workingMemory,
                                          context ) );

        final Cheese stilton = new Cheese( "stilton",
                                           10 );

        final InternalFactHandle stiltonHandle = (InternalFactHandle) workingMemory.insert( stilton );

        // check constraint
        assertFalse(constraint.isAllowed(stiltonHandle,
                workingMemory,
                context));
    }
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Related Classes of org.drools.rule.constraint.MvelConstraint

  • org.drools.base.ClassObjectType
  • org.drools.base.DroolsQuery
  • org.drools.common.InternalFactHandle
  • org.drools.common.InternalRuleBase
  • org.drools.core.util.AbstractHashTable.FieldIndex
  • org.drools.core.util.index.IndexUtil
  • org.drools.core.util.index.IndexUtil$Factory$IndexSpec
  • org.drools.event.knowledgebase.KnowledgeBaseEventSupportTest
  • org.drools.event.rule.AgendaEventSupportTest
  • org.drools.event.RuleBaseEventSupportTest
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