Package org.drools.lang.descr

Examples of org.drools.lang.descr.PredicateDescr

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        map.put( "b",
                 b );
        declarationResolver.setDeclarations( map );
        context.setDeclarationResolver( declarationResolver );

        final PredicateDescr predicateDescr = new PredicateDescr();
        predicateDescr.setContent( "a == b" );

        final MVELPredicateBuilder builder = new MVELPredicateBuilder();

        final List[] usedIdentifiers = new ArrayList[2];
        final List list = new ArrayList();
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        // analyze field type:
        Class resultType = getFieldReturnType( pattern,
                                               fieldConstraintDescr );

        PredicateDescr predicateDescr = new PredicateDescr();
        MVELDumper dumper = new MVELDumper();
        predicateDescr.setContent( dumper.dump( fieldConstraintDescr,
                                                Date.class.isAssignableFrom( resultType ) ) );

        build( context,
               pattern,
               predicateDescr,
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        pattern.addConstraint( fieldBindingDescr2 );

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

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

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

        builder.addPackage( packageDescr );
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        pattern.addConstraint( fieldBindingDescr2 );

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

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

        ruleDescr.setConsequence( "update(stilton);" );
    }
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        // analyze field type:
        Class resultType = getFieldReturnType( pattern,
                                               fieldConstraintDescr );

        PredicateDescr predicateDescr = new PredicateDescr();
        MVELDumper dumper = new MVELDumper();
        predicateDescr.setContent( dumper.dump( fieldConstraintDescr,
                                                Date.class.isAssignableFrom( resultType ) ) );

        build( context,
               pattern,
               predicateDescr,
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                                                    Object content,
                                                    final Map<String,Class<?>>[] availableIdentifiers,
                                                    Map<String,Class<?>> localTypes) {
        if ( descr instanceof PredicateDescr ) {
            Appendable builder = new StringBuilderAppendable();
            PredicateDescr pdescr = (PredicateDescr) descr;
            if ( pdescr.getContent() instanceof LispForm ) {
                FunctionHandlers.dump( (LispForm) pdescr.getContent(),
                                       builder,
                                       true);

                content = builder.toString();
                pdescr.setContent( content );
            }
        } else if ( descr instanceof ReturnValueRestrictionDescr ) {
            Appendable builder = new StringBuilderAppendable();
            ReturnValueRestrictionDescr rdescr = (ReturnValueRestrictionDescr) descr;
            if ( rdescr.getContent() instanceof LispForm ) {
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    public static MVELCompilationUnit buildCompilationUnit(RuleBuildContext context, Pattern pattern, String expression) {
        Dialect dialect = context.getDialect();
        context.setDialect( context.getDialect( "mvel" ) );

        PredicateDescr predicateDescr = new PredicateDescr( context.getRuleDescr().getResource(), expression );
        AnalysisResult analysis = buildAnalysis(context, pattern, predicateDescr, null);
        if ( analysis == null ) {
            // something bad happened
            return null;
        }
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            if ( d instanceof AtomicExprDescr ) {
                Matcher m = evalRegexp.matcher( ((AtomicExprDescr) d).getExpression() );
                if ( m.find() ) {
                    // MVELDumper already stripped the eval
                    // this will build the eval using the specified dialect
                    PredicateDescr pdescr = new PredicateDescr( expr );
                    buildEval( context,
                               pattern,
                               pdescr,
                               null,
                               aliases );
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                                          Map<String, OperatorDescr> aliases ) {
        Dialect dialect = context.getDialect();
        MVELDialect mvelDialect = (MVELDialect) context.getDialect( "mvel" );
        context.setDialect( mvelDialect );

        PredicateDescr pdescr = new PredicateDescr( expr );
        buildEval( context,
                   pattern,
                   pdescr,
                   null,
                   aliases );
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    public static MVELCompilationUnit buildCompilationUnit(RuleBuildContext context, Pattern pattern, String expression) {
        Dialect dialect = context.getDialect();
        context.setDialect( context.getDialect( "mvel" ) );

        PredicateDescr predicateDescr = new PredicateDescr( context.getRuleDescr().getResource(), expression );
        AnalysisResult analysis = buildAnalysis(context, pattern, predicateDescr, null);
        if ( analysis == null ) {
            // something bad happened
            return null;
        }
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Related Classes of org.drools.lang.descr.PredicateDescr

  • org.drools.clips.LhsClpParserTest
  • org.drools.compiler.PackageBuilderTest
  • org.drools.compiler.xml.rules.PredicateHandler
  • org.drools.compiler.xml.rules.XmlPackageReaderTest
  • org.drools.lang.RuleParserTest
  • org.drools.rule.builder.ConstraintBuilder
  • org.drools.rule.builder.dialect.asm.AbstractASMEvalBuilder
  • org.drools.rule.builder.dialect.clips.ClipsDialect
  • org.drools.rule.builder.dialect.mvel.MVELPredicateBuilderTest
  • org.drools.rule.builder.MVELConstraintBuilder
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