Package org.drools.core.rule

Examples of org.drools.core.rule.Pattern

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                                                          fields );

        final InternalReadAccessor extractName = new FactTemplateFieldExtractor( cheese,
                                                                      0 );

        final Pattern pattern = new Pattern( 0,
                                          new FactTemplateObjectType( cheese ) );

        final Declaration declaration = new Declaration( "typeOfCheese",
                                                         extractName,
                                                         pattern );
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        InternalReadAccessor extractor = store.getReader( clazz,
                                                          fieldName,
                                                          getClass().getClassLoader() );
        Declaration declaration = new Declaration( identifier,
                                                   extractor,
                                                   new Pattern( 0,
                                                                new ClassObjectType( clazz ) ) );

        String expression = fieldName + " " + operator.getOperatorString() + " " + identifier;
        return new MvelConstraintTestUtil(expression, operator.getOperatorString(), declaration, extractor);
    }
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        ruleBase.addEventListener( listener1 );
        ruleBase.addEventListener( listener2 );

        final Rule rule1 = new Rule( "test1" );
        final ClassObjectType cheeseObjectType = new ClassObjectType( Cheese.class );
        final Pattern pattern = new Pattern( 0,
                                             cheeseObjectType );

        ClassFieldAccessorStore store = new ClassFieldAccessorStore();
        store.setClassFieldAccessorCache( new ClassFieldAccessorCache( Thread.currentThread().getContextClassLoader() ) );
        store.setEagerWire( true );

        final ClassFieldReader extractor = store.getReader( Cheese.class,
                                                            "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() {
            private static final long serialVersionUID = 510l;
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        final ObjectType list1ObjectType = new ClassObjectType( String.class );
        final ObjectType list2ObjectType = new ClassObjectType( String.class );

        final Rule rule = new Rule( "rule-1" );

        final Pattern list1Pattern = new Pattern( 0,
                                               list1ObjectType,
                                               "s1" );
        final Pattern list2Pattern = new Pattern( 1,
                                               list2ObjectType,
                                               "s2" );

        rule.addPattern( list1Pattern );
        rule.addPattern( list2Pattern );
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        final Package pkg = new Package( "org.drools.test" );
        final Rule rule = new Rule( "test1" );
        rule.setEager(true);
        rule.setAgendaGroup( "test group" );
        final ClassObjectType cheeseObjectType = new ClassObjectType( Cheese.class );
        final Pattern pattern = new Pattern( 0,
                                             cheeseObjectType );

        pkg.setClassFieldAccessorCache( new ClassFieldAccessorCache( Thread.currentThread().getContextClassLoader() ) );
        pkg.getClassFieldAccessorStore().setEagerWire( true );
        final ClassFieldReader extractor = pkg.getClassFieldAccessorStore().getReader(Cheese.class,
                "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() {
            public void evaluate(final KnowledgeHelper knowledgeHelper,
                                 final WorkingMemory workingMemory) throws Exception {
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        InternalReadAccessor extractor = store.getReader( clazz,
                                                          fieldName,
                                                          getClass().getClassLoader() );
        Declaration declaration = new Declaration( identifier,
                                                   extractor,
                                                   new Pattern( 0,
                                                                new ClassObjectType( clazz ) ) );

        String expression = fieldName + " " + operator.getOperatorString() + " " + declaration.getIdentifier();
        return new MvelConstraintTestUtil(expression, declaration, extractor);
    }
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    }

    private Rule getOtherwise(final String name) {
        final Rule rule = new Rule( name );
        final Pattern pat = new Pattern( 0,
                                         new ClassObjectType( Otherwise.class) );
        rule.addPattern( pat );
        rule.setConsequence( new MockConsequence() );
        return rule;
    }
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    }

    private Rule getRule(final String name) {
        final Rule rule = new Rule( name );

        final Pattern pat = new Pattern( 0,
                                         new ClassObjectType( TestBean.class ) );

        rule.addPattern( pat );
        rule.setConsequence( new MockConsequence() );
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                    source = source.getParentObjectSource();
                }
                cls = ((ClassObjectType)((ObjectTypeNode)source).getObjectType()).getClassType();
            }

            Pattern sourcePattern;
            Pattern resultPattern;
            try {
                sourcePattern = reteTesterHelper.getPattern( 0,
                                                             sourceType );

                // we always use the accumulate function "sum", so return type is always Number
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        this.sink = new MockLeftTupleSink();

        this.accumulator = new MockAccumulator();

        final ObjectType srcObjType = new ClassObjectType(String.class);
        final Pattern sourcePattern = new Pattern(0,
                                                  srcObjType);
        this.accumulate = new Accumulate(sourcePattern,
                                         new Declaration[0],
                                         new Accumulator[]{this.accumulator},
                                         false);
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Related Classes of org.drools.core.rule.Pattern

  • org.drools.compiler.builder.impl.KnowledgeBuilderImpl
  • org.drools.compiler.builder.impl.KnowledgeBuilderTest
  • org.drools.compiler.compiler.PackageBuilder
  • org.drools.compiler.compiler.PackageBuilderTest
  • org.drools.compiler.integrationtests.AnnotationsTest
  • org.drools.compiler.phreak.BetaNodeBuilder
  • org.drools.compiler.rule.builder.CollectBuilder
  • org.drools.compiler.rule.builder.ConditionalBranchBuilder
  • org.drools.compiler.rule.builder.dialect.java.JavaAccumulateBuilder
  • org.drools.compiler.rule.builder.dialect.java.JavaConsequenceBuilderTest
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