Examples of PredicateConstraint

org.drools.core.rule.PredicateConstraint
A predicate can be written as a top level constraint or be nested inside inside a field constraint (and as so, must implement the Restriction interface).
org.drools.rule.PredicateConstraint
A predicate can be written as a top level constraint or be nested inside inside a field constraint (and as so, must implement the Restriction interface). @author etirelli

Examples of org.drools.core.rule.PredicateConstraint

                break;
            }
        }
        
        AlphaNode alphanode = (AlphaNode) node.getSinkPropagator().getSinks()[0];
        PredicateConstraint c = ( PredicateConstraint ) alphanode.getConstraint();
        assertTrue( c.getPredicateExpression() instanceof PredicateExpression );
        assertTrue( c.getPredicateExpression() instanceof CompiledInvoker );
        assertTrue( !(c.getPredicateExpression() instanceof MVELPredicateExpression ) );
        
        alphanode = (AlphaNode) alphanode.getSinkPropagator().getSinks()[0];
        AlphaNodeFieldConstraint constraint = alphanode.getConstraint();


        if (constraint instanceof MvelConstraint) {

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Examples of org.drools.core.rule.PredicateConstraint

            }
        }
        
        BetaNode betaanode = (BetaNode) node.getSinkPropagator().getSinks()[0];
        BetaNodeFieldConstraint[] constraint = betaanode.getConstraints();
        PredicateConstraint c = ( PredicateConstraint ) constraint[0];
        assertTrue( c.getPredicateExpression() instanceof PredicateExpression );
        assertTrue( c.getPredicateExpression() instanceof CompiledInvoker );
        assertTrue( !(c.getPredicateExpression() instanceof MVELPredicateExpression ) );
    }

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Examples of org.drools.core.rule.PredicateConstraint


    @Test
    public void testAlphaWithPredicate() {
        final CompositeObjectSinkAdapter ad = new CompositeObjectSinkAdapter();
        final AlphaNode al = new AlphaNode( buildContext.getNextId(),
                                            new PredicateConstraint( null,
                                                                     null ),
                                            null,
                                            buildContext );
        ad.addObjectSink( al );

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Examples of org.drools.core.rule.PredicateConstraint

                     SortDeclarations.instance );


        boolean isJavaEval = isEvalExpression && context.getDialect() instanceof JavaDialect;


        if (isJavaEval) {
            final PredicateConstraint predicateConstraint = new PredicateConstraint( null,
                    previousDeclarations,
                    localDeclarations,
                    requiredGlobals,
                    requiredOperators );

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Examples of org.drools.rule.PredicateConstraint

        usedIdentifiers[1] = list;


        final Declaration[] previousDeclarations = new Declaration[]{a};
        final Declaration[] localDeclarations = new Declaration[]{b};


        final PredicateConstraint predicate = new PredicateConstraint( null,
                                                                       localDeclarations );


        builder.build( context,
                       usedIdentifiers,
                       previousDeclarations,
                       localDeclarations,
                       predicate,
                       predicateDescr );


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


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


        final Cheese cheddar = new Cheese( "cheddar",
                                           10 );
        final InternalFactHandle f0 = (InternalFactHandle) wm.insert( cheddar );
        final ReteTuple tuple = new ReteTuple( f0 );


        final PredicateContextEntry predicateContext = (PredicateContextEntry) predicate.createContextEntry();
        predicateContext.leftTuple = tuple;


        assertTrue( predicate.isAllowedCachedLeft( predicateContext,
                                                   stilton ) );


        cheddar.setPrice( 9 );
        wm.update( f0,
                   cheddar );


        assertFalse( predicate.isAllowedCachedLeft( predicateContext,
                                                    stilton ) );
    }

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Examples of org.drools.rule.PredicateConstraint

                     SortDeclarations.instance );


        boolean isJavaEval = isEvalExpression && context.getDialect() instanceof JavaDialect;


        if (isJavaEval) {
            final PredicateConstraint predicateConstraint = new PredicateConstraint( null,
                    previousDeclarations,
                    localDeclarations,
                    requiredGlobals,
                    requiredOperators );

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Examples of org.drools.rule.PredicateConstraint


    @Test
    public void testAlphaWithPredicate() {
        final CompositeObjectSinkAdapter ad = new CompositeObjectSinkAdapter();
        final AlphaNode al = new AlphaNode( buildContext.getNextId(),
                                            new PredicateConstraint( null,
                                                                     null ),
                                            null,
                                            buildContext );
        ad.addObjectSink( al );

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Examples of org.drools.rule.PredicateConstraint

        
        final MVELPredicateBuilder builder = new MVELPredicateBuilder();
        final Declaration[] previousDeclarations = new Declaration[]{a};
        final Declaration[] localDeclarations = new Declaration[]{b};


        final PredicateConstraint predicate = new PredicateConstraint( null,
                                                                       localDeclarations );
        
        AnalysisResult analysis = context.getDialect().analyzeExpression( context,
                                                                          predicateDescr,
                                                                          predicateDescr.getContent(),
                                                                          new BoundIdentifiers( declarationResolver.getDeclarationClasses( (Rule) null ), new HashMap(), null, Cheese.class ) );


        builder.build( context,
                       new BoundIdentifiers( declarationResolver.getDeclarationClasses( (Rule) null ), new HashMap() ),
                       previousDeclarations,
                       localDeclarations,
                       predicate,
                       predicateDescr,
                       analysis );
        
        ( (MVELPredicateExpression) predicate.getPredicateExpression()).compile( (MVELDialectRuntimeData) pkgRegistry.getDialectRuntimeRegistry().getDialectData( "mvel" ) );


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


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


        final Cheese cheddar = new Cheese( "cheddar",
                                           10 );
        
        MockLeftTupleSink sink = new MockLeftTupleSink();
        
        final InternalFactHandle f0 = (InternalFactHandle) wm.insert( cheddar );
        final InternalFactHandle f1 = (InternalFactHandle) wm.insert( stilton );
        final LeftTuple tuple = new LeftTuple( f0, sink, true );


        final PredicateContextEntry predicateContext = (PredicateContextEntry) predicate.createContextEntry();
        predicateContext.leftTuple = tuple;
        predicateContext.workingMemory = wm;


        assertTrue( predicate.isAllowedCachedLeft( predicateContext,
                                                   f1 ) );


        cheddar.setPrice( 9 );
        wm.update( f0,
                   cheddar );


        assertFalse( predicate.isAllowedCachedLeft( predicateContext,
                                                    f1 ) );
    }

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Examples of org.drools.rule.PredicateConstraint

    }


    public void testAlphaWithPredicate() {
        final CompositeObjectSinkAdapter ad = new CompositeObjectSinkAdapter();
        final AlphaNode al = new AlphaNode( buildContext.getNextId(),
                                            new PredicateConstraint( null,
                                                                     null ),
                                            null,
                                            buildContext );
        ad.addObjectSink( al );

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Examples of org.drools.rule.PredicateConstraint

        
        assertNotSame( rve1, rve3 );
        assertThat(rve1, not( equalTo( rve3 ) ) );
        
        // test inline eval
        PredicateConstraint pc1 = ( PredicateConstraint )  p1.getConstraints().get( 1 );
        PredicateExpression pe1 = ( PredicateExpression ) pc1.getPredicateExpression();


        PredicateConstraint pc2 = ( PredicateConstraint )  p2.getConstraints().get( 1 );
        PredicateExpression pe2 = ( PredicateExpression ) pc2.getPredicateExpression();
        assertNotSame( pe1, pe2 );
        assertEquals( pe1, pe2 );
        
        PredicateConstraint pc3 = ( PredicateConstraint )  p3.getConstraints().get( 1 );
        PredicateExpression pe3 = ( PredicateExpression ) pc3.getPredicateExpression();
        assertNotSame( pe1, pe3 );
        assertThat(pe1, not( equalTo( pe3 ) ) );
        
       // test eval
        EvalCondition ec1 = ( EvalCondition ) rule1.getLhs().getChildren().get( 1 );

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