Package org.drools.compiler

Examples of org.drools.compiler.DrlExprParser

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    @SuppressWarnings("unchecked")
    private ConstraintConnectiveDescr parseExpression( final RuleBuildContext context,
                                                       final PatternDescr patternDescr,
                                                       final String expression ) {
        DrlExprParser parser = new DrlExprParser();
        ConstraintConnectiveDescr result = parser.parse( expression );
        if ( result == null || parser.hasErrors() ) {
            for ( DroolsParserException error : parser.getErrors() ) {
                context.getErrors().add( new DescrBuildError( context.getParentDescr(),
                                                              patternDescr,
                                                              null,
                                                              "Unable to parser pattern expression:\n" + error.getMessage() ) );
            }
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    @SuppressWarnings("unchecked")
    private ConstraintConnectiveDescr parseExpression( final RuleBuildContext context,
                                                       final PatternDescr patternDescr,
                                                       final String expression ) {
        DrlExprParser parser = new DrlExprParser();
        ConstraintConnectiveDescr result = parser.parse( expression );
        if ( result == null || parser.hasErrors() ) {
            for ( DroolsParserException error : parser.getErrors() ) {
                context.getErrors().add( new DescrBuildError( context.getParentDescr(),
                                                              patternDescr,
                                                              null,
                                                              "Unable to parser pattern expression:\n" + error.getMessage() ) );
            }
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                declrIndexes.add( pos );
                requiredDeclarations.add( declr );
            } else {
                // it must be a literal/expression
                // it's an expression and thus an input
                DrlExprParser parser = new DrlExprParser();
                ConstraintConnectiveDescr bresult = parser.parse( bind.getExpression() );
                if ( parser.hasErrors() ) {
                    for ( DroolsParserException error : parser.getErrors() ) {
                        context.getErrors().add( new DescrBuildError( context.getParentDescr(),
                                                                      descr,
                                                                      null,
                                                                      "Unable to parser pattern expression:\n" + error.getMessage() ) );
                    }
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    @SuppressWarnings("unchecked")
    private ConstraintConnectiveDescr parseExpression( final RuleBuildContext context,
                                                       final PatternDescr patternDescr,
                                                       final String expression ) {
        DrlExprParser parser = new DrlExprParser();
        ConstraintConnectiveDescr result = parser.parse( expression );
        if ( result == null || parser.hasErrors() ) {
            for ( DroolsParserException error : parser.getErrors() ) {
                context.getErrors().add( new DescrBuildError( context.getParentDescr(),
                                                              patternDescr,
                                                              null,
                                                              "Unable to parser pattern expression:\n" + error.getMessage() ) );
            }
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        assertEquals( "age",
                      bind.getExpression() );
    }

    public ConstraintConnectiveDescr parse( final String constraint ) {
        DrlExprParser parser = new DrlExprParser();
        ConstraintConnectiveDescr result = parser.parse( constraint );
        assertFalse( parser.getErrors().toString(),
                     parser.hasErrors() );

        return result;
    }
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                declrIndexes.add( pos );
                requiredDeclarations.add( declr );
            } else {
                // it must be a literal/expression
                // it's an expression and thus an input
                DrlExprParser parser = new DrlExprParser();
                ConstraintConnectiveDescr bresult = parser.parse( bind.getExpression() );
                if ( parser.hasErrors() ) {
                    for ( DroolsParserException error : parser.getErrors() ) {
                        context.addError( new DescrBuildError( context.getParentDescr(),
                                                                      descr,
                                                                      null,
                                                                      "Unable to parser pattern expression:\n" + error.getMessage() ) );
                    }
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    @SuppressWarnings("unchecked")
    private ConstraintConnectiveDescr parseExpression( final RuleBuildContext context,
                                                       final PatternDescr patternDescr,
                                                       final String expression ) {
        DrlExprParser parser = new DrlExprParser();
        ConstraintConnectiveDescr result = parser.parse( expression );
        if ( result == null || parser.hasErrors() ) {
            for ( DroolsParserException error : parser.getErrors() ) {
                context.addError( new DescrBuildError( context.getParentDescr(),
                                                              patternDescr,
                                                              null,
                                                              "Unable to parser pattern expression:\n" + error.getMessage() ) );
            }
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    @SuppressWarnings("unchecked")
    protected ConstraintConnectiveDescr parseExpression( final RuleBuildContext context,
                                                         final PatternDescr patternDescr,
                                                         final BaseDescr original,
                                                         final String expression ) {
        DrlExprParser parser = new DrlExprParser();
        ConstraintConnectiveDescr result = parser.parse( expression );
        result.copyLocation( original );
        if ( parser.hasErrors() ) {
            for ( DroolsParserException error : parser.getErrors() ) {
                context.addError(new DescrBuildError(context.getParentDescr(),
                        patternDescr,
                        null,
                        "Unable to parser pattern expression:\n" + error.getMessage()));
            }
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    @SuppressWarnings("unchecked")
    private ConstraintConnectiveDescr parseExpression( final RuleBuildContext context,
                                                       final PatternDescr patternDescr,
                                                       final BaseDescr original,
                                                       final String expression ) {
        DrlExprParser parser = new DrlExprParser();
        ConstraintConnectiveDescr result = parser.parse( expression );
        result.copyLocation( original );
        if ( parser.hasErrors() ) {
            for ( DroolsParserException error : parser.getErrors() ) {
                context.addError(new DescrBuildError(context.getParentDescr(),
                        patternDescr,
                        null,
                        "Unable to parser pattern expression:\n" + error.getMessage()));
            }
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    @SuppressWarnings("unchecked")
    protected ConstraintConnectiveDescr parseExpression( final RuleBuildContext context,
                                                         final PatternDescr patternDescr,
                                                         final BaseDescr original,
                                                         final String expression ) {
        DrlExprParser parser = new DrlExprParser();
        ConstraintConnectiveDescr result = parser.parse( expression );
        result.copyLocation( original );
        if ( parser.hasErrors() ) {
            for ( DroolsParserException error : parser.getErrors() ) {
                context.addError(new DescrBuildError(context.getParentDescr(),
                        patternDescr,
                        null,
                        "Unable to parser pattern expression:\n" + error.getMessage()));
            }
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Related Classes of org.drools.compiler.DrlExprParser

  • org.antlr.runtime.ANTLRStringStream
  • org.antlr.runtime.CommonTokenStream
  • org.antlr.runtime.RecognizerSharedState
  • org.drools.lang.descr.BaseDescr
  • org.drools.lang.descr.ConstraintConnectiveDescr
  • org.drools.lang.DRLExpressions
  • org.drools.lang.DRLExprParserTest
  • org.drools.lang.DRLExprTreeTest
  • org.drools.lang.DRLLexer
  • org.drools.lang.MVELDumper
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