Package org.drools.core.rule

Examples of org.drools.core.rule.EvalCondition

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                              LeftTupleSink sink,
                              InternalWorkingMemory wm,
                              LeftTupleSets srcLeftTuples,
                              LeftTupleSets trgLeftTuples,
                              LeftTupleSets stagedLeftTuples) {
        EvalCondition condition = evalNode.getCondition();
        for (LeftTuple leftTuple = srcLeftTuples.getUpdateFirst(); leftTuple != null; ) {
            LeftTuple next = leftTuple.getStagedNext();

            boolean wasPropagated = leftTuple.getFirstChild() != null;

            boolean allowed = condition.isAllowed(leftTuple,
                                                  wm,
                                                  em.context);
            if (allowed) {
                if (wasPropagated) {
                    // update
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                                  EvalMemory em,
                                  LeftTupleSink sink,
                                  InternalWorkingMemory wm,
                                  LeftTupleSets srcLeftTuples,
                                  LeftTupleSets trgLeftTuples) {
            EvalCondition condition = evalNode.getCondition();
            for (LeftTuple leftTuple = srcLeftTuples.getInsertFirst(); leftTuple != null; ) {
                LeftTuple next = leftTuple.getStagedNext();

                final boolean allowed = condition.isAllowed(leftTuple,
                                                            wm,
                                                            em.context);

                if (allowed) {
                    boolean useLeftMemory = useLeftMemory(evalNode, leftTuple);
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                                  LeftTupleSink sink,
                                  InternalWorkingMemory wm,
                                  LeftTupleSets srcLeftTuples,
                                  LeftTupleSets trgLeftTuples,
                                  LeftTupleSets stagedLeftTuples) {
            EvalCondition condition = evalNode.getCondition();
            for (LeftTuple leftTuple = srcLeftTuples.getUpdateFirst(); leftTuple != null; ) {
                LeftTuple next = leftTuple.getStagedNext();

                boolean wasPropagated = leftTuple.getFirstChild() != null;

                boolean allowed = condition.isAllowed(leftTuple,
                                                      wm,
                                                      em.context);
                if (allowed) {
                    if (wasPropagated) {
                        // update
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        final EvalDescr evalDescr = new EvalDescr();
        evalDescr.setContent( "a == 10" );

        final MVELEvalBuilder builder = new MVELEvalBuilder();
        final EvalCondition eval = (EvalCondition) builder.build( context,
                                                                  evalDescr );
        ((MVELEvalExpression) eval.getEvalExpression()).compile( (MVELDialectRuntimeData) pkgBuilder.getPackageRegistry( pkg.getName() ).getDialectRuntimeRegistry().getDialectData( "mvel" ) );

        final RuleBase ruleBase = RuleBaseFactory.newRuleBase();
        final WorkingMemory wm = ruleBase.newStatefulSession();

        MockLeftTupleSink sink = new MockLeftTupleSink();
        final Cheese cheddar = new Cheese( "cheddar",
                                           10 );
        final InternalFactHandle f0 = (InternalFactHandle) wm.insert( cheddar );
        final LeftTupleImpl tuple = new LeftTupleImpl( f0, sink, true );
       
        Object evalContext = eval.createContext();

        assertTrue( eval.isAllowed( tuple,
                                    wm,
                                    evalContext ) );

        cheddar.setPrice( 9 );
        wm.update( f0,
                   cheddar );
        assertFalse( eval.isAllowed( tuple,
                                     wm,
                                     evalContext ) );
    }
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        assertLength( 0,
                      builder.getErrors().getErrors() );

        final Package pkg = builder.getPackage();
        final Rule rule = pkg.getRule( "rule-1" );
        final EvalCondition eval = (EvalCondition) rule.getLhs().getChildren().get( 1 );
        final CompiledInvoker invoker = (CompiledInvoker) eval.getEvalExpression();
        final List list = invoker.getMethodBytecode();
    }
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        final PackageBuilder builder1 = new PackageBuilder();
        final PackageDescr packageDescr1 = new PackageDescr( "package1" );
        createEvalRule( packageDescr1,
                        "1==1" );
        builder1.addPackage( packageDescr1 );
        final EvalCondition eval1 = (EvalCondition) builder1.getPackage().getRules()[0].getLhs().getChildren().get( 0 );

        final PackageBuilder builder2 = new PackageBuilder();
        final PackageDescr packageDescr2 = new PackageDescr( "package2" );
        createEvalRule( packageDescr2,
                        "1==1" );
        builder2.addPackage( packageDescr2 );
        final EvalCondition eval2 = (EvalCondition) builder2.getPackage().getRules()[0].getLhs().getChildren().get( 0 );

        final PackageBuilder builder3 = new PackageBuilder();
        final PackageDescr packageDescr3 = new PackageDescr( "package3" );
        createEvalRule( packageDescr3,
                        "1==3" );
        builder3.addPackage( packageDescr3 );
        final EvalCondition eval3 = (EvalCondition) builder3.getPackage().getRules()[0].getLhs().getChildren().get( 0 );

        assertEquals( eval1,
                      eval2 );
        assertFalse( eval1.equals( eval3 ) );
        assertFalse( eval2.equals( eval3 ) );
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        String className = "eval" + context.getNextId();
        evalDescr.setClassMethodName( className );

        Arrays.sort(declarations, RuleTerminalNode.SortDeclarations.instance);

        final EvalCondition eval = new EvalCondition( declarations );

        final Map vars = createVariableContext( className,
                (String)evalDescr.getContent(),
                context,
                declarations,
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    public ConditionalBranch build(RuleBuildContext context, BaseDescr descr, Pattern prefixPattern) {
        ConditionalBranchDescr conditionalBranch = (ConditionalBranchDescr) descr;

        RuleConditionBuilder evalBuilder = (RuleConditionBuilder) context.getDialect().getBuilder( EvalDescr.class );
        EvalCondition condition = (EvalCondition) evalBuilder.build(context, conditionalBranch.getCondition(), getLastPattern(context));

        NamedConsequenceBuilder namedConsequenceBuilder = (NamedConsequenceBuilder) context.getDialect().getBuilder( NamedConsequenceDescr.class );
        NamedConsequence consequence = namedConsequenceBuilder.build(context, conditionalBranch.getConsequence());

        ConditionalBranchDescr elseBranchDescr = conditionalBranch.getElseBranch();
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            context.addError( err  );
            return null;
        }

        RuleConditionBuilder evalBuilder = (RuleConditionBuilder) context.getDialect().getBuilder( EvalDescr.class );
        EvalCondition condition = (EvalCondition) evalBuilder.build(context, conditionalBranch.getCondition(), getLastPattern(context));

        NamedConsequenceBuilder namedConsequenceBuilder = (NamedConsequenceBuilder) context.getDialect().getBuilder( NamedConsequenceDescr.class );
        NamedConsequence consequence = namedConsequenceBuilder.build(context, conditionalBranch.getConsequence());

        ConditionalBranchDescr elseBranchDescr = conditionalBranch.getElseBranch();
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                                                                       null,
                                                                       context,
                                                                       "drools",
                                                                       KnowledgeHelper.class,
                                                                       false );
            final EvalCondition eval = new EvalCondition( previousDeclarations );

            MVELEvalExpression expr = new MVELEvalExpression( unit,
                                                              dialect.getId() );
            eval.setEvalExpression( expr );

            MVELDialectRuntimeData data = (MVELDialectRuntimeData) context.getPkg().getDialectRuntimeRegistry().getDialectData( "mvel" );
            data.addCompileable( eval,
                                  expr );
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Related Classes of org.drools.core.rule.EvalCondition

  • org.drools.compiler.builder.impl.KnowledgeBuilderTest
  • org.drools.compiler.compiler.PackageBuilderTest
  • org.drools.compiler.rule.builder.ConditionalBranchBuilder
  • org.drools.compiler.rule.builder.dialect.asm.AbstractASMEvalBuilder
  • org.drools.compiler.rule.builder.dialect.java.JavaDialectBinaryEqualityTest
  • org.drools.compiler.rule.builder.dialect.mvel.MVELEvalBuilder
  • org.drools.compiler.rule.builder.dialect.mvel.MVELEvalBuilderTest
  • org.drools.core.phreak.PhreakEvalNode
  • org.drools.core.phreak.RuleNetworkEvaluator$PhreakEvalNode
  • org.drools.core.reteoo.builder.EvalBuilder
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