Package org.drools.lang.descr

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

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                                                                           "x" );
        pattern.addConstraint( fieldBindingDescr );

        final FieldBindingDescr fieldBindingDescr2 = new FieldBindingDescr( "price",
                                                                            "y" );
        pattern.addConstraint( fieldBindingDescr2 );

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

        final PredicateDescr predicate = new PredicateDescr( expression );
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        packageDescr.addGlobal( new GlobalDescr( "map",
                                                 "java.util.Map" ) );

        final PredicateDescr predicate = new PredicateDescr( expression );
        pattern.addConstraint( predicate );

        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( literalDescr );

        ruleDescr.setConsequence( "" );

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

        patternDescr.addConstraint( literalDescr );

        ceDescr.addDescr( patternDescr );

        ruleDescr.setConsequence( consequence );
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        // $total : Integer() from accumulate( Cheese( $price : price ) init( int x = 0; ) action( x += $price ) result( new Integer( x ) ) )
        AccumulateDescr accumDescr = new DescrFactory().createAccumulate();
       
        FieldBindingDescr price = new FieldBindingDescr( "price", "$price" );
        PatternDescr cheeseDescr = new PatternDescr( "org.drools.Cheese" );
        cheeseDescr.addConstraint( price );
        accumDescr.setInputPattern( cheeseDescr );
       
        accumDescr.setInitCode( "int x = 0;" );
        accumDescr.setActionCode( "x += $price;" );
        accumDescr.setResultCode( "new Integer( x )" );
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        final RuleDescr ruleDescr = new RuleDescr( "Test Rule" );
        AndDescr andDescr = new AndDescr();
        PatternDescr patDescr = new PatternDescr( "java.math.BigDecimal",
                                                  "$bd" );
        ExprConstraintDescr fcd = new ExprConstraintDescr( "this == 10" );
        patDescr.addConstraint( fcd );
        andDescr.addDescr( patDescr );
        ruleDescr.setLhs( andDescr );
        ruleDescr.setConsequence( "" );
        pkgDescr.addRule( ruleDescr );
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        final RuleDescr ruleDescr = new RuleDescr( "Test Rule" );
        AndDescr andDescr = new AndDescr();
        PatternDescr patDescr = new PatternDescr( "java.math.BigInteger",
                                                  "$bd" );
        ExprConstraintDescr fcd = new ExprConstraintDescr( "this==10" );
        patDescr.addConstraint( fcd );
        andDescr.addDescr( patDescr );
        ruleDescr.setLhs( andDescr );
        ruleDescr.setConsequence( "" );
        pkgDescr.addRule( ruleDescr );
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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 );

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

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

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

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