Package org.drools.lang.descr

Examples of org.drools.lang.descr.ReturnValueRestrictionDescr

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

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

        pattern.addConstraint( returnValue );

        // There is no m this should produce errors.
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        packageDescr.addGlobal( new GlobalDescr( "map",
                                                 "java.util.Map" ) );

        final FieldConstraintDescr returnValue = new FieldConstraintDescr( "price" );
        returnValue.addRestriction( new ReturnValueRestrictionDescr( "==",
                                                                     "(( (Integer) map.get( new Integer( x )) ).intValue() * y)" ) );

        pattern.addConstraint( returnValue );

        ruleDescr.setConsequence( "update(stilton);" );
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        packageDescr.addGlobal( new GlobalDescr( "map",
                                                 "java.util.Map" ) );

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

        pattern.addConstraint( returnValue );

        ruleDescr.setConsequence( "update(stilton);" );
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        map.put( "b",
                 b );
        declarationResolver.setDeclarations( map );
        context.setDeclarationResolver( declarationResolver );

        final ReturnValueRestrictionDescr returnValueDescr = new ReturnValueRestrictionDescr( "=" );
        returnValueDescr.setContent( "a + b" );

        final MVELReturnValueBuilder builder = new MVELReturnValueBuilder();

        final List[] usedIdentifiers = new ArrayList[2];
        final List list = new ArrayList();
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        packageDescr.addGlobal( new GlobalDescr( "map",
                                                 "java.util.Map" ) );

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

        pattern.addConstraint( returnValue );

        // There is no m this should produce errors.
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        packageDescr.addGlobal( new GlobalDescr( "map",
                                                 "java.util.Map" ) );

        final FieldConstraintDescr returnValue = new FieldConstraintDescr( "price" );
        returnValue.addRestriction( new ReturnValueRestrictionDescr( "==",
                                                                     "(( (Integer) map.get( new Integer( x )) ).intValue() * y)" ) );

        pattern.addConstraint( returnValue );

        ruleDescr.setConsequence( "update(stilton);" );
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        packageDescr.addGlobal( new GlobalDescr( "map",
                                                 "java.util.Map" ) );

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

        pattern.addConstraint( returnValue );

        ruleDescr.setConsequence( "update(stilton);" );
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                content = builder.toString();
                pdescr.setContent( content );
            }
        } else if ( descr instanceof ReturnValueRestrictionDescr ) {
            Appendable builder = new StringBuilderAppendable();
            ReturnValueRestrictionDescr rdescr = (ReturnValueRestrictionDescr) descr;
            if ( rdescr.getContent() instanceof LispForm ) {
                FunctionHandlers.dump( (LispForm) rdescr.getContent(),
                                       builder,
                                       true);
                content = builder.toString();
                rdescr.setContent( content );
            }
        }
        return super.analyzeExpression( context,
                                        descr,
                                        content,
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                // execute it as a return value
                restriction = buildRestriction( context,
                                                (Pattern) context.getBuildStack().peek(),
                                                extractor,
                                                new ReturnValueRestrictionDescr( operator,
                                                                                 relDescr.isNegated(),
                                                                                 relDescr.getParametersText(),
                                                                                 rightValue ),
                                                aliases );
                // fall back to original dialect
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            MVELDialect mvelDialect = (MVELDialect) context.getDialect( "mvel" );
            context.setDialect( mvelDialect );
        }

        Pattern pattern = (Pattern) context.getBuildStack().peek();
        ReturnValueRestrictionDescr returnValueRestrictionDescr = new ReturnValueRestrictionDescr( operator,
                                                                                                   relDescr.isNegated(),
                                                                                                   relDescr.getParametersText(),
                                                                                                   value2 );

        Map<String, Class< ? >> declarationsMap = getDeclarationsMap( returnValueRestrictionDescr,
                context,
                true );
        Class< ? > thisClass = null;
        if ( pattern.getObjectType() instanceof ClassObjectType ) {
            thisClass = ((ClassObjectType) pattern.getObjectType()).getClassType();
        }

        Map<String, Class< ? >> globals = context.getPackageBuilder().getGlobals();
        AnalysisResult analysis = context.getDialect().analyzeExpression( context,
                returnValueRestrictionDescr,
                returnValueRestrictionDescr.getContent(),
                new BoundIdentifiers( declarationsMap,
                        globals,
                        null,
                        thisClass ) );
        if ( analysis == null ) {
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Related Classes of org.drools.lang.descr.ReturnValueRestrictionDescr

  • org.drools.clips.LhsClpParserTest
  • org.drools.compiler.PackageBuilderTest
  • org.drools.compiler.xml.rules.ReturnValueRestrictionHandler
  • org.drools.compiler.xml.rules.XmlPackageReaderTest
  • org.drools.lang.RuleParserTest
  • org.drools.rule.builder.dialect.clips.ClipsDialect
  • org.drools.rule.builder.dialect.mvel.MVELReturnValueBuilderTest
  • org.drools.rule.builder.PatternBuilder
  • org.drools.xml.ReturnValueRestrictionHandler
  • org.drools.xml.rules.ReturnValueRestrictionHandler
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