Package org.drools.rule

Examples of org.drools.rule.PredicateConstraint

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        Arrays.sort( previousDeclarations,
                     SortDeclarations.instance );
        Arrays.sort( localDeclarations,
                     SortDeclarations.instance );

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

        if ( container == null ) {
            pattern.addConstraint( predicateConstraint );
        } else {
            if ( predicateConstraint.getType().equals( Constraint.ConstraintType.UNKNOWN ) ) {
                this.setConstraintType( pattern,
                                        (MutableTypeConstraint) predicateConstraint );
            }
            container.addConstraint( predicateConstraint );
        }
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        builder1.addPackage( packageDescr1 );
        if ( builder1.hasErrors() ) {
           fail( builder1.getErrors().toString() );
        }
        final Pattern pattern1 = (Pattern) builder1.getPackage().getRules()[0].getLhs().getChildren().get( 0 );
        final PredicateConstraint predicate1 = (PredicateConstraint) pattern1.getConstraints().get( 0 );

        final PackageBuilder builder2 = new PackageBuilder();
        final PackageDescr packageDescr2 = new PackageDescr( "package2" );
        createPredicateRule( packageDescr2,
                             "eval(x==y)" );
        builder2.addPackage( packageDescr2 );
        if ( builder2.hasErrors() ) {
            fail( builder2.getErrors().toString() );
         }
       
        final Pattern pattern2 = (Pattern) builder2.getPackage().getRules()[0].getLhs().getChildren().get( 0 );
        final PredicateConstraint predicate2 = (PredicateConstraint) pattern2.getConstraints().get( 0 );

        final PackageBuilder builder3 = new PackageBuilder();
        if ( builder3.hasErrors() ) {
            fail( builder3.getErrors().toString() );
         }       
        final PackageDescr packageDescr3 = new PackageDescr( "package3" );
        createPredicateRule( packageDescr3,
                             "eval(x!=y)" );
        builder3.addPackage( packageDescr3 );
        final Pattern pattern3 = (Pattern) builder3.getPackage().getRules()[0].getLhs().getChildren().get( 0 );
        final PredicateConstraint predicate3 = (PredicateConstraint) pattern3.getConstraints().get( 0 );

        assertEquals( predicate1,
                      predicate2 );
        assertFalse( predicate1.equals( predicate3 ) );
        assertFalse( predicate2.equals( predicate3 ) );
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    }

    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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    @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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    }

    public void testAlphaWithPredicate() {
        final CompositeObjectSinkAdapter ad = new CompositeObjectSinkAdapter();
        final AlphaNode al = new AlphaNode( 0,
                                            new PredicateConstraint( null,
                                                                     null ),
                                            null,
                                            true,
                                            3 );
        ad.addObjectSink( al );
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    @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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        final Declaration[] previousDeclarations = (Declaration[]) tupleDeclarations.toArray( new Declaration[tupleDeclarations.size()] );
        final Declaration[] localDeclarations = (Declaration[]) factDeclarations.toArray( new Declaration[factDeclarations.size()] );
        final String[] requiredGlobals = (String[]) usedIdentifiers[1].toArray( new String[usedIdentifiers[1].size()] );

        final PredicateConstraint predicateConstraint = new PredicateConstraint( null,
                                                                                 previousDeclarations,
                                                                                 localDeclarations,
                                                                                 requiredGlobals );

        if ( container == null ) {
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                     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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        final Declaration[] previousDeclarations = (Declaration[]) tupleDeclarations.toArray( new Declaration[tupleDeclarations.size()] );
        final Declaration[] localDeclarations = (Declaration[]) factDeclarations.toArray( new Declaration[factDeclarations.size()] );
        final String[] requiredGlobals = (String[]) usedIdentifiers[1].toArray( new String[usedIdentifiers[1].size()] );

        final PredicateConstraint predicateConstraint = new PredicateConstraint( null,
                                                                                 previousDeclarations,
                                                                                 localDeclarations,
                                                                                 requiredGlobals );

        if ( container == null ) {
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        boolean isJavaEval = isEvalExpression && context.getDialect() instanceof JavaDialect;
        boolean usePredicateConstraint = !USE_MVEL_EXPRESSION || isJavaEval;

        if (usePredicateConstraint) {
            final PredicateConstraint predicateConstraint = new PredicateConstraint( null,
                    previousDeclarations,
                    localDeclarations,
                    requiredGlobals,
                    requiredOperators );
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Related Classes of org.drools.rule.PredicateConstraint

  • org.drools.compiler.PackageBuilderTest
  • org.drools.reteoo.CompositeObjectSinkAdapterTest
  • org.drools.rule.builder.dialect.java.JavaDialectBinaryEqualityTest
  • org.drools.rule.builder.dialect.java.JavaDialectTest
  • org.drools.rule.builder.dialect.mvel.MVELPredicateBuilderTest
  • org.drools.rule.builder.PatternBuilder
  • org.drools.RuntimeDroolsException
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