Package org.drools.rule

Examples of org.drools.rule.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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        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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        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 PackageDescr packageDescr1 = new PackageDescr( "package1" );
        createPredicateRule( packageDescr1,
                             "x==y" );
        builder1.addPackage( packageDescr1 );
        final Pattern pattern1 = (Pattern) builder1.getPackage().getRules()[0].getLhs().getChildren().get( 0 );
        final PredicateConstraint predicate1 = (PredicateConstraint) pattern1.getConstraints().get( 2 );

        final PackageBuilder builder2 = new PackageBuilder();
        final PackageDescr packageDescr2 = new PackageDescr( "package2" );
        createPredicateRule( packageDescr2,
                             "x==y" );
        builder2.addPackage( packageDescr2 );
        final Pattern pattern2 = (Pattern) builder2.getPackage().getRules()[0].getLhs().getChildren().get( 0 );
        final PredicateConstraint predicate2 = (PredicateConstraint) pattern2.getConstraints().get( 2 );

        final PackageBuilder builder3 = new PackageBuilder();
        final PackageDescr packageDescr3 = new PackageDescr( "package3" );
        createPredicateRule( packageDescr3,
                             "x!=y" );
        builder3.addPackage( packageDescr3 );
        final Pattern pattern3 = (Pattern) builder3.getPackage().getRules()[0].getLhs().getChildren().get( 0 );
        final PredicateConstraint predicate3 = (PredicateConstraint) pattern3.getConstraints().get( 2 );

        assertEquals( predicate1,
                      predicate2 );
        assertFalse( predicate1.equals( predicate3 ) );
        assertFalse( predicate2.equals( predicate3 ) );
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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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        assertNotSame( rvc1, rvc3 );
        assertThat(rvc1, not( equalTo( rvc3 ) ) );
       
        // test inline eval
        PredicateConstraint pc1 = getPredicateConstraint(p1);
        PredicateExpression pe1 = ( PredicateExpression ) pc1.getPredicateExpression();

        PredicateConstraint pc2 = getPredicateConstraint(p2);
        PredicateExpression pe2 = ( PredicateExpression ) pc2.getPredicateExpression();
        assertNotSame( pe1, pe2 );
        assertEquals( pe1, pe2 );
       
        PredicateConstraint pc3 = getPredicateConstraint(p3);
        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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                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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            }
        }
       
        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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        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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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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