Package org.drools.lang.descr

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

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        pattern.addBinding( fieldBindingDescr );

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

        pattern.addConstraint( new ExprConstraintDescr("price == x") );

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

        builder.addPackage( packageDescr );
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        final PatternDescr pattern = new PatternDescr( Cheese.class.getName(),
                                                       "stilton" );
        lhs.addDescr( pattern );

        pattern.addConstraint( new ExprConstraintDescr( "type == 'stilton'" ) );

        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 == (( (Integer) map.get( new Integer( x )) ).intValue() * y)") );

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

        builder.addPackage( packageDescr );

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

        final ExprConstraintDescr predicate = new ExprConstraintDescr( "eval(( ( Integer )map.get( new Integer(x) )).intValue() == y)" );
        pattern.addConstraint( predicate );

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

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

        patternDescr.addConstraint( literalDescr );

        ruleDescr.setConsequence( "" );

        builder.addPackage( packageDescr );
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        PatternDescr patternDescr = new PatternDescr( Cheese.class.getName(),
                                                      "stilton" );
        FieldConstraintDescr literalDescr = new FieldConstraintDescr( "type" );
        literalDescr.addRestriction( new LiteralRestrictionDescr( "==",
                                                                  null ) );
        patternDescr.addConstraint( literalDescr );
        ruleDescr.setConsequence( "" );

        ruleDescr = new RuleDescr( "rule-1" );
        ruleDescr.setLocation( 42,
                               43 );
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        patternDescr = new PatternDescr( Cheese.class.getName(),
                                         "stilton" );
        literalDescr = new FieldConstraintDescr( "type" );
        literalDescr.addRestriction( new LiteralRestrictionDescr( "!=",
                                                                  null ) );
        patternDescr.addConstraint( literalDescr );
        ruleDescr.setConsequence( "" );

        ruleDescr = new RuleDescr( "rule-2" );
        ruleDescr.setLocation( 42,
                               43 );
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        literalDescr = new FieldConstraintDescr( "type" );
        literalDescr.addRestriction( new LiteralRestrictionDescr( "!=",
                                                                  null ) );

        patternDescr.addConstraint( literalDescr );
        ruleDescr.setConsequence( "" );

        builder.addPackage( packageDescr );

        assertLength( 1,
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        final FieldConstraintDescr literalDescr = new FieldConstraintDescr( "type" );
        literalDescr.addRestriction( new LiteralRestrictionDescr( "==",
                                                                  "stilton" ) );

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

        final PatternDescr pattern2 = new PatternDescr( Cheese.class.getName() );
        lhs.addDescr( pattern2 );
        pattern2.addConstraint( fieldBindingDescr );
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        final FieldConstraintDescr literalDescr = new FieldConstraintDescr( "type" );
        literalDescr.addRestriction( new LiteralRestrictionDescr( "==",
                                                                  "stilton" ) );

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

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