Examples of org.apache.ws.resource.properties.query.ExpressionEvaluator

Package org.apache.ws.resource.properties.query

Examples of org.apache.ws.resource.properties.query.ExpressionEvaluator

org.apache.ws.resource.properties.query.ExpressionEvaluator
An ExpressionEvaluator is used to implement a query expression evaluation of a ResourcePropertySet. An evaluator can be registered with a QueryEngine, which in turn calls the evaluator when a matching expression is found. @see ResourcePropertySet @see QueryEngine

    }


    private ExpressionEvaluator getEvaluator( QueryExpression queryExpr )
            throws UnknownQueryExpressionDialectException
    {
        ExpressionEvaluator evaluator = getEvaluator( queryExpr.getDialect() );
        if ( evaluator == null )
        {
            throw new UnknownQueryExpressionDialectException( queryExpr.getDialect() );
        }
        return evaluator;

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        try
        {
            Context initialContext = new InitialContext();
            list = initialContext.list( QUERY_EVALUATOR_CONTEXT );
            NameClassPair pair = null;
            ExpressionEvaluator evaluator = null;
            while ( list.hasMore() )
            {
                pair = (NameClassPair) list.next();
                evaluator =
                        (ExpressionEvaluator) JNDIUtils.lookup( initialContext,

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                               Element             nsContext )
   throws UnknownQueryExpressionDialectException, 
          QueryEvaluationErrorException, 
          InvalidQueryExpressionException
   {
      ExpressionEvaluator evaluator = getEvaluator( queryExpr.getDialect(  ) );
      if ( evaluator == null )
      {
         throw new UnknownQueryExpressionDialectFaultException( queryExpr.getDialect(  ) );
      }
      if(LOG.isDebugEnabled())
      {
          DebugLogQueryExpression(queryExpr, resourcePropertySet);
      }
      return evaluator.evaluate( queryExpr, resourcePropertySet, nsContext );
   }

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      try
      {
         Context initialContext = new InitialContext(  );
         list = initialContext.list( QUERY_EVALUATOR_CONTEXT );
         NameClassPair       pair      = null;
         ExpressionEvaluator evaluator = null;
         while ( list.hasMore(  ) )
         {
            pair         = (NameClassPair) list.next(  );
            evaluator =
               (ExpressionEvaluator) JNDIUtils.lookup( initialContext,

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                               Element             nsContext )
   throws UnknownQueryExpressionDialectException, 
          QueryEvaluationErrorException, 
          InvalidQueryExpressionException
   {
      ExpressionEvaluator evaluator = getEvaluator( queryExpr.getDialect(  ) );
      if ( evaluator == null )
      {
         throw new UnknownQueryExpressionDialectException( queryExpr.getDialect(  ) );
      }
      if(LOG.isDebugEnabled())
      {
          DebugLogQueryExpression(queryExpr, resourcePropertySet);
      }
      return evaluator.evaluate( queryExpr, resourcePropertySet, nsContext );
   }

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      try
      {
         Context initialContext = new InitialContext(  );
         list = initialContext.list( QUERY_EVALUATOR_CONTEXT );
         NameClassPair       pair      = null;
         ExpressionEvaluator evaluator = null;
         while ( list.hasMore(  ) )
         {
            pair         = (NameClassPair) list.next(  );
            evaluator =
               (ExpressionEvaluator) JNDIUtils.lookup( initialContext,

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         if ( ( list != null ) && list.hasMore(  ) )
         {
            while ( list.hasMore(  ) )
            {
               NameClassPair       pair      = (NameClassPair) list.next(  );
               ExpressionEvaluator evaluator =
                  (ExpressionEvaluator) JNDIUtils.lookup( initialContext,
                                                          QUERY_EVALUATOR_CONTEXT + "/" + pair.getName(  ),
                                                          ExpressionEvaluator.class );
               registerEvaluator( evaluator );
            }

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   }


   private ExpressionEvaluator getEvaluator( QueryExpression queryExpr )
   throws UnknownQueryExpressionDialectException
   {
      ExpressionEvaluator evaluator = getEvaluator( queryExpr.getDialect(  ) );
      if ( evaluator == null )
      {
         throw new UnknownQueryExpressionDialectException( queryExpr.getDialect(  ) );
      }

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         if ( ( list != null ) && list.hasMore(  ) )
         {
            while ( list.hasMore(  ) )
            {
               NameClassPair       pair      = (NameClassPair) list.next(  );
               ExpressionEvaluator evaluator =
                  (ExpressionEvaluator) XmlBeanJndiUtils.lookup( initialContext,
                                                                 COTEXT_NAME_QUERY_EVALUATOR + "/"
                                                                 + pair.getName(  ), ExpressionEvaluator.class );
               registerEvaluator( evaluator );
            }

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   }


   private ExpressionEvaluator getEvaluator( QueryExpression queryExpr )
   throws UnknownQueryExpressionDialectException
   {
      ExpressionEvaluator evaluator = getEvaluator( queryExpr.getDialect(  ) );
      if ( evaluator == null )
      {
         throw new UnknownQueryExpressionDialectException( queryExpr.getDialect(  ) );
      }

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Related Classes of org.apache.ws.resource.properties.query.ExpressionEvaluator

org.apache.ws.resource.properties.query.impl.QueryEngineImpl

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