Package org.drools.rule.builder.dialect.mvel

Examples of org.drools.rule.builder.dialect.mvel.MVELDialect

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        String name = context.getRuleName();
        RuleInfo currentRule = getCurrentRule( drlInfo,
                                               name );
        String qName = drlInfo.getPackageName() + "." + name;
        MVELDialect dialect = (MVELDialect) drlInfo.getDialectRegistry().getDialect("mvel");
        ParserContext initialContext = createInitialContext( params,
                                                             qName,
                                                             dialect );
        MvelContext mCon = new MvelContext();
        mCon.setContext( initialContext );
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                               final FieldConstraintDescr fieldConstraintDescr,
                               final AbstractCompositeConstraint container) {
        // it is a complex expression, so we need to turn it into an MVEL predicate
        Dialect dialect = context.getDialect();
        // switch to MVEL dialect
        MVELDialect mvelDialect = (MVELDialect) context.getDialect( "mvel" );
        boolean strictMode = mvelDialect.isStrictMode();
        mvelDialect.setStrictMode( false );

        context.setDialect( mvelDialect );

        PredicateDescr predicateDescr = new PredicateDescr();
        MVELDumper dumper = new MVELDumper();
        predicateDescr.setContent( dumper.dump( fieldConstraintDescr ) );

        build( context,
               pattern,
               predicateDescr,
               container );

        mvelDialect.setStrictMode( strictMode );
        // fall back to original dialect
        context.setDialect( dialect );
    }
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                                          Pattern pattern,
                                          BaseDescr base,
                                          String expr,
                                          Map<String, OperatorDescr> aliases ) {
        Dialect dialect = context.getDialect();
        MVELDialect mvelDialect = (MVELDialect) context.getDialect( "mvel" );
        context.setDialect( mvelDialect );

        PredicateDescr pdescr = new PredicateDescr( context.getRuleDescr().getResource(), expr );
        pdescr.copyParameters( base );
        pdescr.copyLocation( base );
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            }
        } else if ( fieldName.indexOf( '.' ) > -1 || fieldName.indexOf( '[' ) > -1 || fieldName.indexOf( '(' ) > -1 ) {
            // we need MVEL extractor for expressions
            Dialect dialect = context.getDialect();
            try {
                MVELDialect mvelDialect = (MVELDialect) context.getDialect( "mvel" );
                context.setDialect( mvelDialect );

                Map<String, Class< ? >> declarations = getDeclarationsMap( descr,
                                                                           context,
                                                                           false );
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                        null,
                        "Predicate '" + predicateDescr.getContent() + "' must be a Boolean expression\n" + predicateDescr.positionAsString() ) );
            }
        }

        MVELDialect dialect = (MVELDialect) context.getDialect( context.getDialect().getId() );

        MVELCompilationUnit unit = null;

        try {
            Map<String, Class< ? >> declIds = context.getDeclarationResolver().getDeclarationClasses( context.getRule() );

            Pattern p = (Pattern) context.getBuildStack().peek();
            if ( p.getObjectType() instanceof ClassObjectType) {
                declIds.put( "this",
                        ((ClassObjectType) p.getObjectType()).getClassType() );
            }

            unit = dialect.getMVELCompilationUnit( (String) predicateDescr.getContent(),
                                                    analysis,
                                                    previousDeclarations,
                                                    localDeclarations,
                                                    null,
                                                    context,
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    public static String fixBlockDescr(final RuleBuildContext context,
                                       final JavaAnalysisResult analysis,
                                       Map<String, Declaration> decls,
                                       List<JavaBlockDescr> blocks) {

        MVELDialect mvel = (MVELDialect) context.getDialect("mvel");


        String originalCode = analysis.getAnalyzedExpr();
        BoundIdentifiers bindings = analysis.getBoundIdentifiers();
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    private static Map<String, Class<?>> getInputs(final RuleBuildContext context,
                                                   String code,
                                                   BoundIdentifiers bindings,
                                                   Map<String, Class<?>> parentVars) {
        MVELDialect mvel = (MVELDialect) context.getDialect("mvel");

        MVELAnalysisResult mvelAnalysis = null;
        try {
            mvelAnalysis = (MVELAnalysisResult) mvel.analyzeBlock(context,
                    context.getRuleDescr(),
                    null,
                    code,
                    bindings,
                    parentVars,
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                               final FieldConstraintDescr fieldConstraintDescr,
                               final AbstractCompositeConstraint container) {
        // it is a complex expression, so we need to turn it into an MVEL predicate
        Dialect dialect = context.getDialect();
        // switch to MVEL dialect
        MVELDialect mvelDialect = (MVELDialect) context.getDialect( "mvel" );
        boolean strictMode = mvelDialect.isStrictMode();
        mvelDialect.setStrictMode( false );

        context.setDialect( mvelDialect );

        PredicateDescr predicateDescr = new PredicateDescr();
        MVELDumper dumper = new MVELDumper();
        predicateDescr.setContent( dumper.dump( fieldConstraintDescr ) );

        build( context,
               pattern,
               predicateDescr,
               container );

        mvelDialect.setStrictMode( strictMode );
        // fall back to original dialect
        context.setDialect( dialect );
    }
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    public static String fixBlockDescr(final RuleBuildContext context,
                                       final JavaAnalysisResult analysis,
                                       Map<String, Declaration> decls,
                                       List<JavaBlockDescr> blocks) {

        MVELDialect mvel = (MVELDialect) context.getDialect("mvel");


        String originalCode = analysis.getAnalyzedExpr();
        BoundIdentifiers bindings = analysis.getBoundIdentifiers();
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    private static Map<String, Class<?>> getInputs(final RuleBuildContext context,
                                                   String code,
                                                   BoundIdentifiers bindings,
                                                   Map<String, Class<?>> parentVars) {
        MVELDialect mvel = (MVELDialect) context.getDialect("mvel");

        MVELAnalysisResult mvelAnalysis = null;
        try {
            mvelAnalysis = (MVELAnalysisResult) mvel.analyzeBlock(context,
                    context.getRuleDescr(),
                    null,
                    code,
                    bindings,
                    parentVars,
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Related Classes of org.drools.rule.builder.dialect.mvel.MVELDialect

  • org.drools.base.ModifyInterceptor
  • org.drools.base.mvel.DroolsMVELKnowledgeHelper
  • org.drools.base.mvel.MVELCompilationUnit
  • org.drools.commons.jci.readers.MemoryResourceReader
  • org.drools.compiler.AnalysisResult
  • org.drools.compiler.DescrBuildError
  • org.drools.compiler.ImportError
  • org.drools.compiler.PackageBuilder
  • org.drools.compiler.RuleError
  • org.drools.eclipse.editors.completion.RuleCompletionProcessor
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