Package org.drools.lang.descr

Examples of org.drools.lang.descr.PatternDescr.addConstraint()

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        pattern1.addConstraint( fieldBindingDescr );
        pattern1.addConstraint( literalDescr );

        final PatternDescr pattern2 = new PatternDescr( Cheese.class.getName() );
        lhs.addDescr( pattern2 );
        pattern2.addConstraint( fieldBindingDescr );

        ruleDescr.setConsequence( "update(stilton);" );

        builder.addPackage( packageDescr );
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        pattern.addBinding( fieldBindingDescr );

        packageDescr.addGlobal( new GlobalDescr( "map",
                                                 "java.util.Map" ) );

        pattern.addConstraint( new ExprConstraintDescr("price == (" + expression + ")") );

        ruleDescr.setConsequence( "update(stilton);" );
    }

    private void createPredicateRule( final PackageDescr packageDescr,
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        pattern.addBinding( fieldBindingDescr2 );

        packageDescr.addGlobal( new GlobalDescr( "map",
                                                 "java.util.Map" ) );

        pattern.addConstraint( new ExprConstraintDescr( expression ) );

        ruleDescr.setConsequence( "update(stilton);" );
    }

    private void createEvalRule( final PackageDescr packageDescr,
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        ruleDescr.setLhs( lhs );

        final PatternDescr pattern = new PatternDescr( Primitives.class.getName() );
        lhs.addDescr( pattern );

        pattern.addConstraint( descr );

        ruleDescr.setConsequence( "" );

        builder.addPackage( packageDescr );
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        lhs.addDescr( (BaseDescr) ceDescr );

        final PatternDescr patternDescr = new PatternDescr( Cheese.class.getName(),
                                                            "stilton" );

        patternDescr.addConstraint( new ExprConstraintDescr( "type == \"stilton\" ")  );

        ceDescr.addDescr( patternDescr );

        ruleDescr.setConsequence( consequence );
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                                                       "stilton" );
        lhs.addDescr( pattern );

        FieldBindingDescr fieldBindingDescr = new FieldBindingDescr( "price",
                                                                     "x" );
        pattern.addConstraint( fieldBindingDescr );
        fieldBindingDescr = new FieldBindingDescr( "price",
                                                   "y" );
        pattern.addConstraint( fieldBindingDescr );

        packageDescr.addGlobal( new GlobalDescr( "map",
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        FieldBindingDescr fieldBindingDescr = new FieldBindingDescr( "price",
                                                                     "x" );
        pattern.addConstraint( fieldBindingDescr );
        fieldBindingDescr = new FieldBindingDescr( "price",
                                                   "y" );
        pattern.addConstraint( fieldBindingDescr );

        packageDescr.addGlobal( new GlobalDescr( "map",
                                                 "java.util.Map" ) );

        final FieldConstraintDescr returnValue = new FieldConstraintDescr( "price" );
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        final FieldConstraintDescr returnValue = new FieldConstraintDescr( "price" );
        returnValue.addRestriction( new ReturnValueRestrictionDescr( "==",
                                                                     "x" ) );

        pattern.addConstraint( returnValue );

        // There is no m this should produce errors.
        ruleDescr.setConsequence( "update(m);" );

        builder.addPackage( packageDescr );
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        final FieldConstraintDescr literalDescr = new FieldConstraintDescr( "name" );
        literalDescr.addRestriction( new LiteralRestrictionDescr( "==",
                                                                  "stilton" ) );

        pattern.addConstraint( literalDescr );

        ruleDescr.setConsequence( "String result = stilton.getFieldValue( \"name\" ) + \" \" + stilton.getFieldValue( \"price\" );" );

        builder.addPackage( packageDescr );
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        final FieldConstraintDescr literalDescr = new FieldConstraintDescr( "type" );
        literalDescr.addRestriction( new LiteralRestrictionDescr( "==",
                                                                  "stilton" ) );

        pattern.addConstraint( literalDescr );

        ruleDescr.setConsequence( "update(stilton);" );

        builder.addPackage( packageDescr );
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