Package org.drools.rule

Examples of org.drools.rule.From

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                                                    null,
                                                    "Unable to build expression for 'from' node '" + accessor + "'" ) );
            return null;
        }

        return new From( dataProvider );
    }
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                                                    null,
                                                    "Unable to build expression for 'from' node '" + accessor + "'" ) );
            return null;
        }

        return new From( dataProvider );
    }
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                                      final BaseDescr descr,
                                      final Pattern prefixPattern) {
        final FromDescr fromDescr = (FromDescr) descr;

        final MVELExprDescr expr = (MVELExprDescr) fromDescr.getDataSource();
        From from = null;
        try {
            // This builder is re-usable in other dialects, so specify by name
            MVELDialect dialect = (MVELDialect) context.getDialect( "mvel" );
           
            Map<String, Declaration> decls = context.getDeclarationResolver().getDeclarations(context.getRule());

            String text = (String) expr.getText();
            AnalysisResult analysis = dialect.analyzeExpression( context,
                                                                 descr,
                                                                 text,
                                                                 new BoundIdentifiers(context.getDeclarationResolver().getDeclarationClasses( decls ),
                                                                                      context.getPackageBuilder().getGlobals() ) );
            if ( analysis == null ) {
                // something bad happened
                return null;
            }
           
            final BoundIdentifiers usedIdentifiers = analysis.getBoundIdentifiers();           
            final Declaration[] declarations =  new Declaration[usedIdentifiers.getDeclarations().size()];
            String[] declrStr = new String[declarations.length];
            int j = 0;
            for (String str : usedIdentifiers.getDeclarations().keySet() ) {
                declrStr[j] = str;
                declarations[j++] = decls.get( str );
            }
            Arrays.sort( declarations, SortDeclarations.instance  );           
           
            MVELCompilationUnit unit = dialect.getMVELCompilationUnit( text,
                                                                       analysis,
                                                                       declarations,
                                                                       null,
                                                                       null,
                                                                       context,
                                                                       "drools",
                                                                       KnowledgeHelper.class );

            MVELDataProvider dataProvider = new MVELDataProvider( unit,
                                                                  context.getDialect().getId() );
            from = new From( dataProvider );

            MVELDialectRuntimeData data = (MVELDialectRuntimeData) context.getPkg().getDialectRuntimeRegistry().getDialectData( dialect.getId() );
            data.addCompileable( from,
                                  dataProvider );
           
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                                      final BaseDescr descr,
                                      final Pattern prefixPattern) {
        final FromDescr fromDescr = (FromDescr) descr;

        final AccessorDescr accessor = (AccessorDescr) fromDescr.getDataSource();
        From from = null;
        try {
            // This builder is re-usable in other dialects, so specify by name
            MVELDialect dialect = (MVELDialect) context.getDialect( "mvel" );

            String text = (String) accessor.toString();
            Dialect.AnalysisResult analysis = dialect.analyzeExpression( context,
                                                                         descr,
                                                                         text,
                                                                         new Map[]{context.getDeclarationResolver().getDeclarationClasses(context.getRule()), context.getPackageBuilder().getGlobals()} );

            Declaration[] previousDeclarations = (Declaration[]) context.getDeclarationResolver().getDeclarations(context.getRule()).values().toArray( new Declaration[context.getDeclarationResolver().getDeclarations(context.getRule()).size()] );
            MVELCompilationUnit unit = dialect.getMVELCompilationUnit( text,
                                                                       analysis,
                                                                       previousDeclarations,
                                                                       null,
                                                                       null,
                                                                       context );

            MVELDataProvider dataProvider = new MVELDataProvider( unit,
                                                                  context.getDialect().getId() );
            from = new From( dataProvider );

            MVELDialectRuntimeData data = (MVELDialectRuntimeData) context.getPkg().getDialectRuntimeRegistry().getDialectData( dialect.getId() );
            data.addCompileable( from,
                                  dataProvider );
           
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     * @see org.drools.reteoo.builder.ReteooComponentBuilder#build(org.drools.reteoo.builder.BuildContext, org.drools.reteoo.builder.BuildUtils, org.drools.rule.RuleConditionElement)
     */
    public void build(final BuildContext context,
                      final BuildUtils utils,
                      final RuleConditionElement rce) {
        final From from = (From) rce;
        context.pushRuleComponent( from );

        BetaConstraints betaConstraints = utils.createBetaNodeConstraint( context, context.getBetaconstraints(), true );
       
        context.setTupleSource( (LeftTupleSource) utils.attachNode( context,
                                                                new FromNode( context.getNextId(),
                                                                              from.getDataProvider(),
                                                                              context.getTupleSource(),
                                                                              (AlphaNodeFieldConstraint[]) context.getAlphaConstraints().toArray( new AlphaNodeFieldConstraint[context.getAlphaConstraints().size()] ),
                                                                              betaConstraints,
                                                                              context.isTupleMemoryEnabled(),
                                                                              context ) ) );
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     * @see org.drools.reteoo.builder.ReteooComponentBuilder#build(org.drools.reteoo.builder.BuildContext, org.drools.reteoo.builder.BuildUtils, org.drools.rule.RuleConditionElement)
     */
    public void build(final BuildContext context,
                      final BuildUtils utils,
                      final RuleConditionElement rce) {
        final From from = (From) rce;
        context.pushRuleComponent( from );

        BetaConstraints betaConstraints = utils.createBetaNodeConstraint( context, context.getBetaconstraints(), true );
       
        context.setTupleSource( (LeftTupleSource) utils.attachNode( context,
                                                                new FromNode( context.getNextId(),
                                                                              from.getDataProvider(),
                                                                              context.getTupleSource(),
                                                                              (AlphaNodeFieldConstraint[]) context.getAlphaConstraints().toArray( new AlphaNodeFieldConstraint[context.getAlphaConstraints().size()] ),
                                                                              betaConstraints,
                                                                              context.isTupleMemoryEnabled(),
                                                                              context,
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                                      final BaseDescr descr,
                                      final Pattern prefixPattern) {
        final FromDescr fromDescr = (FromDescr) descr;

        final MVELExprDescr expr = (MVELExprDescr) fromDescr.getDataSource();
        From from = null;
        try {
            // This builder is re-usable in other dialects, so specify by name
            MVELDialect dialect = (MVELDialect) context.getDialect( "mvel" );
           
            Map<String, Declaration> decls = context.getDeclarationResolver().getDeclarations(context.getRule());

            String text = (String) expr.getText();
            AnalysisResult analysis = dialect.analyzeExpression( context,
                                                                 descr,
                                                                 text,
                                                                 new BoundIdentifiers(context.getDeclarationResolver().getDeclarationClasses( decls ),
                                                                                      context.getPackageBuilder().getGlobals() ) );
            if ( analysis == null ) {
                // something bad happened
                return null;
            }
           
            final BoundIdentifiers usedIdentifiers = analysis.getBoundIdentifiers();           
            final Declaration[] declarations =  new Declaration[usedIdentifiers.getDeclrClasses().size()];
            String[] declrStr = new String[declarations.length];
            int j = 0;
            for (String str : usedIdentifiers.getDeclrClasses().keySet() ) {
                declrStr[j] = str;
                declarations[j++] = decls.get( str );
            }
            Arrays.sort( declarations, SortDeclarations.instance  );           
           
            MVELCompilationUnit unit = dialect.getMVELCompilationUnit( text,
                                                                       analysis,
                                                                       declarations,
                                                                       null,
                                                                       null,
                                                                       context,
                                                                       "drools",
                                                                       KnowledgeHelper.class );

            MVELDataProvider dataProvider = new MVELDataProvider( unit,
                                                                  context.getDialect().getId() );
            from = new From( dataProvider );

            MVELDialectRuntimeData data = (MVELDialectRuntimeData) context.getPkg().getDialectRuntimeRegistry().getDialectData( "mvel" );
            data.addCompileable( from,
                                  dataProvider );
           
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                                      final BaseDescr descr,
                                      final Pattern prefixPattern) {
        final FromDescr fromDescr = (FromDescr) descr;

        final AccessorDescr accessor = (AccessorDescr) fromDescr.getDataSource();
        From from = null;
        try {
            // This builder is re-usable in other dialects, so specify by name
            MVELDialect dialect = (MVELDialect) context.getDialect( "mvel" );

            String text = (String) accessor.toString();
            Dialect.AnalysisResult analysis = dialect.analyzeExpression( context,
                                                                         descr,
                                                                         text,
                                                                         new Set[]{context.getDeclarationResolver().getDeclarations(context.getRule()).keySet(), context.getPkg().getGlobals().keySet()} );

            Declaration[] previousDeclarations = (Declaration[]) context.getDeclarationResolver().getDeclarations(context.getRule()).values().toArray( new Declaration[context.getDeclarationResolver().getDeclarations(context.getRule()).size()] );
            MVELCompilationUnit unit = dialect.getMVELCompilationUnit( text,
                                                                       analysis,
                                                                       previousDeclarations,
                                                                       null,
                                                                       null,
                                                                       context );

            MVELDataProvider dataProvider = new MVELDataProvider( unit,
                                                                  context.getDialect().getId() );
            from = new From( dataProvider );

            MVELDialectRuntimeData data = (MVELDialectRuntimeData) context.getPkg().getDialectRuntimeRegistry().getDialectData( dialect.getId() );
            data.addCompileable( from,
                                  dataProvider );
           
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                                                    null,
                                                    "Unable to build expression for 'from' node '" + accessor + "'" ) );
            return null;
        }

        return new From( dataProvider );
    }
View Full Code Here
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                                      final BaseDescr descr,
                                      final Pattern prefixPattern) {
        final FromDescr fromDescr = (FromDescr) descr;

        final MVELExprDescr expr = (MVELExprDescr) fromDescr.getDataSource();
        From from = null;
        try {
            // This builder is re-usable in other dialects, so specify by name
            MVELDialect dialect = (MVELDialect) context.getDialect( "mvel" );
           
            Map<String, Declaration> decls = context.getDeclarationResolver().getDeclarations(context.getRule());

            String text = (String) expr.getText();
            AnalysisResult analysis = dialect.analyzeExpression( context,
                                                                 descr,
                                                                 text,
                                                                 new BoundIdentifiers(context.getDeclarationResolver().getDeclarationClasses( decls ),
                                                                                      context.getPackageBuilder().getGlobals() ) );
            if ( analysis == null ) {
                // something bad happened
                return null;
            }
           
            final BoundIdentifiers usedIdentifiers = analysis.getBoundIdentifiers();           
            final Declaration[] declarations =  new Declaration[usedIdentifiers.getDeclrClasses().size()];
            String[] declrStr = new String[declarations.length];
            int j = 0;
            for (String str : usedIdentifiers.getDeclrClasses().keySet() ) {
                declrStr[j] = str;
                declarations[j++] = decls.get( str );
            }
            Arrays.sort( declarations, SortDeclarations.instance  );           
           
            MVELCompilationUnit unit = dialect.getMVELCompilationUnit( text,
                                                                       analysis,
                                                                       declarations,
                                                                       null,
                                                                       null,
                                                                       context,
                                                                       "drools",
                                                                       KnowledgeHelper.class,
                                                                       false );

            MVELDataProvider dataProvider = new MVELDataProvider( unit,
                                                                  context.getDialect().getId() );
            from = new From( dataProvider );

            MVELDialectRuntimeData data = (MVELDialectRuntimeData) context.getPkg().getDialectRuntimeRegistry().getDialectData( "mvel" );
            data.addCompileable( from,
                                  dataProvider );
           
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Related Classes of org.drools.rule.From

  • org.drools.reteoo.builder.FromBuilder
  • org.drools.reteoo.FromNodeTest
  • org.drools.rule.builder.dialect.mvel.MVELFromBuilder
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