Package org.drools.spi

Examples of org.drools.spi.FieldValue

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        ValueType vtype = extractor.getValueType();
        String operator = relDescr.getOperator().trim();
        LiteralRestrictionDescr restrictionDescr = buildLiteralRestrictionDescr(context, relDescr, value2, operator, isConstant);

        if (restrictionDescr != null) {
            FieldValue field = getFieldValue(context, vtype, restrictionDescr);
            if (field != null) {
                Constraint constraint = getConstraintBuilder( context ).buildLiteralConstraint(context, pattern, vtype, field, expr, value1, operator, value2, extractor, restrictionDescr);
                if (constraint != null) {
                    pattern.addConstraint(constraint);
                    return true;
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    }

    protected FieldValue getFieldValue(RuleBuildContext context,
                                     ValueType vtype,
                                     LiteralRestrictionDescr literalRestrictionDescr) {
        FieldValue field = null;
        try {
            String value = literalRestrictionDescr.getText().trim();
            MVEL.COMPILER_OPT_ALLOW_NAKED_METH_CALL = true;
            MVEL.COMPILER_OPT_ALLOW_OVERRIDE_ALL_PROPHANDLING = true;
            MVEL.COMPILER_OPT_ALLOW_RESOLVE_INNERCLASSES_WITH_DOTNOTATION = true;
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                    if ( fieldIndex.getCount() >= this.alphaNodeHashingThreshold && this.alphaNodeHashingThreshold != 0 ) {
                        if ( !fieldIndex.isHashed() ) {
                            hashSinks( fieldIndex );
                        }
                        final FieldValue value = indexableConstraint.getField();
                        // no need to check, we know  the sink  does not exist
                        this.hashedSinkMap.put( new HashKey( index,
                                                             value,
                                                             fieldIndex.getFieldExtractor() ),
                                                alphaNode,
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            final AlphaNode alphaNode = (AlphaNode) sink;
            final AlphaNodeFieldConstraint fieldConstraint = alphaNode.getConstraint();

            if ( fieldConstraint instanceof IndexableConstraint ) {
                final IndexableConstraint indexableConstraint = (IndexableConstraint) fieldConstraint;
                final FieldValue value = indexableConstraint.getField();

                if ( indexableConstraint.isIndexable(NodeTypeEnums.AlphaNode) && indexableConstraint.getField() != null &&
                        indexableConstraint.getFieldExtractor().getValueType() != ValueType.OBJECT_TYPE &&
                        // our current implementation does not support hashing of deeply nested properties
                        !( indexableConstraint.getFieldExtractor() instanceof MVELClassFieldReader )) {
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            currentSink = currentSink.getNextObjectSinkNode();

            // only alpha nodes that have an Operator.EQUAL are in hashableSinks, so only check if it is
            // the right field index
            if ( index == indexableConstraint.getFieldExtractor().getIndex() ) {
                final FieldValue value = indexableConstraint.getField();
                this.hashedSinkMap.put( new HashKey( index,
                                                     value,
                                                     fieldReader ),
                                        alphaNode );
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            final IndexableConstraint indexableConstraint = (IndexableConstraint) alphaNode.getConstraint();

            // only alpha nodes that have an Operator.EQUAL are in sinks, so only check if it is
            // the right field index
            if ( index == indexableConstraint.getFieldExtractor().getIndex() ) {
                final FieldValue value = indexableConstraint.getField();
                if ( this.hashableSinks == null ) {
                    this.hashableSinks = new ObjectSinkNodeList();
                }
                this.hashableSinks.add( alphaNode );
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                             final InternalFactHandle handle,
                             final InternalWorkingMemory workingMemory,
                             final ContextEntry context) {
        try {
            ReturnValueContextEntry ctx = (ReturnValueContextEntry) context;           
            FieldValue value = this.expression.evaluate( handle.getObject(),
                                                         null,
                                                         this.previousDeclarations,
                                                         this.localDeclarations,
                                                         workingMemory,
                                                         ctx.dialectContext );
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    public boolean isAllowedCachedLeft(final ContextEntry context,
                                       final InternalFactHandle handle) {
        try {
            ReturnValueContextEntry ctx = (ReturnValueContextEntry) context;
            FieldValue value = this.expression.evaluate( handle.getObject(),
                                                         ctx.leftTuple,
                                                         this.previousDeclarations,
                                                         this.localDeclarations,
                                                         ctx.workingMemory,
                                                         ctx.dialectContext );
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    public boolean isAllowedCachedRight(final LeftTuple tuple,
                                        final ContextEntry context) {
        try {
            ReturnValueContextEntry ctx = (ReturnValueContextEntry) context;
            FieldValue value = this.expression.evaluate( ctx.handle.getObject(),
                                                         tuple,
                                                         this.previousDeclarations,
                                                         this.localDeclarations,
                                                         ctx.workingMemory,
                                                         ctx.dialectContext );
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    private void checkEvaluatorMethodWithFieldValue(final ValueType valueType,
                                                    final InternalReadAccessor extractor,
                                                    final Object[] row,
                                                    final Evaluator evaluator) {
        final FieldValue value = FieldFactory.getInstance().getFieldValue( row[2] );
        RuntimeDroolsException exc = null;
        try {
            evaluator.evaluate( null,
                                extractor,
                                ( EventFactHandle ) row[0],
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Related Classes of org.drools.spi.FieldValue

  • org.drools.base.EvaluatorFactoryTest
  • org.drools.base.FieldFactory
  • org.drools.base.FieldFactoryTest
  • org.drools.base.TemporalEvaluatorFactoryTest
  • org.drools.event.AgendaEventSupportTest
  • org.drools.event.knowledgebase.KnowledgeBaseEventSupportTest
  • org.drools.event.rule.AgendaEventSupportTest
  • org.drools.event.RuleBaseEventListenerTest
  • org.drools.event.RuleBaseEventSupportTest
  • org.drools.examples.manners.BaseMannersTest
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