Examples of MethodExpression

com.tulskiy.musique.playlist.formatting.tokens.MethodExpression
@Author : Denis Tulskiy @Date : Feb 6, 2010
javax.el.MethodExpression
An Expression that refers to a method on an object.
The {@link ExpressionFactory#createMethodExpression} methodcan be used to parse an expression string and return a concrete instance of MethodExpression that encapsulates the parsed expression. The {@link FunctionMapper} is used at parse time, not evaluation time, so one is not needed to evaluate an expression using this class. However, the {@link ELContext} is needed at evaluation time.
The {@link #getMethodInfo} and {@link #invoke} methods will evaluate the expression each time they are called. The {@link ELResolver} in the ELContext is used to resolve the top-level variables and to determine the behavior of the . and [] operators. For any of the two methods, the {@link ELResolver#getValue} method is used to resolve all properties up to but excluding the last one. This provides the base object on which the method appears. If the base object is null, a PropertyNotFoundException must be thrown. At the last resolution, the final property is then coerced to a String, which provides the name of the method to be found. A method matching the name and expected parameters provided at parse time is found and it is either queried or invoked (depending on the method called on this MethodExpression).

See the notes about comparison, serialization and immutability in the {@link Expression} javadocs. @see ELResolver @see Expression @see ExpressionFactory @since JSP 2.1
org.apache.commons.betwixt.expression.MethodExpression

MethodExpression evaluates a method on the current bean context.
@author James Strachan @version $Revision: 471234 $
org.apache.olingo.odata2.api.uri.expression.MethodExpression
Represents a method expression in the expression tree

A method expression node is inserted in the expression tree for any valid OData method operator in {@link MethodOperator} (e.g. for "substringof", "concat", "year", ... )
org.jboss.aop.expressions.MethodExpression
Comment @author Bill Burke @version $Revision: 37406 $
org.jboss.seam.core.Expressions.MethodExpression

Examples of org.apache.commons.betwixt.expression.MethodExpression

                if (log.isTraceEnabled()) {
                    log.trace( "Adding property as element: " + name );
                }
                nodeDescriptor = new ElementDescriptor(true);
            }
            nodeDescriptor.setTextExpression( new MethodExpression( readMethod ) );
            
            if ( writeMethod != null ) {
                nodeDescriptor.setUpdater( new MethodUpdater( writeMethod ) );
            }
        } else if ( isLoopType( type ) ) {
            if (log.isTraceEnabled()) {
                log.trace("Loop type: " + name);
                log.trace("Wrap in collections? " + introspector.isWrapCollectionsInElement());
            }
            ElementDescriptor loopDescriptor = new ElementDescriptor();
            loopDescriptor.setContextExpression(
                new IteratorExpression( new MethodExpression( readMethod ) )
            );
            loopDescriptor.setWrapCollectionsInElement(
                        introspector.isWrapCollectionsInElement());
            // XXX: need to support some kind of 'add' or handle arrays, Lists or indexed properties
            //loopDescriptor.setUpdater( new MethodUpdater( writeMethod ) );
            if ( Map.class.isAssignableFrom( type ) ) {
                loopDescriptor.setQualifiedName( "entry" );
                // add elements for reading
                loopDescriptor.addElementDescriptor( new ElementDescriptor( "key" ) );
                loopDescriptor.addElementDescriptor( new ElementDescriptor( "value" ) );
            }


            ElementDescriptor elementDescriptor = new ElementDescriptor();
            elementDescriptor.setWrapCollectionsInElement(
                        introspector.isWrapCollectionsInElement());
            elementDescriptor.setElementDescriptors( new ElementDescriptor[] { loopDescriptor } );
            
            nodeDescriptor = elementDescriptor;            
        } else {
            if (log.isTraceEnabled()) {
                log.trace( "Standard property: " + name);
            }
            ElementDescriptor elementDescriptor = new ElementDescriptor();
            elementDescriptor.setContextExpression( new MethodExpression( readMethod ) );
            if ( writeMethod != null ) {
                elementDescriptor.setUpdater( new MethodUpdater( writeMethod ) );
            }
            
            nodeDescriptor = elementDescriptor;

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Examples of org.apache.olingo.odata2.api.uri.expression.MethodExpression

      appendExpression(((BinaryExpression) expression).getLeftOperand(), writer);
      writer.append("</li><li>");
      appendExpression(((BinaryExpression) expression).getRightOperand(), writer);
      writer.append("</li></ol>");
    } else if (kind == ExpressionKind.METHOD) {
      final MethodExpression methodExpression = (MethodExpression) expression;
      if (methodExpression.getParameterCount() > 0) {
        writer.append("<ol class=\"expr\">");
        for (final CommonExpression parameter : methodExpression.getParameters()) {
          writer.append("<li>");
          appendExpression(parameter, writer);
          writer.append("</li>");
        }
        writer.append("</ol>");

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Examples of org.jboss.aop.expressions.MethodExpression

      public String attr;
      public Object value;


      public QueuedMethodMetaData(String expr, String tag, String attr, Object value)
      {
         this.expr = new MethodExpression(expr);
         this.tag = tag;
         this.attr = attr;
         this.value = value;
      }

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Examples of org.jboss.seam.core.Expressions.MethodExpression

         if (actionId!=null)
         {
            if ( !SafeActions.instance().isActionSafe(actionId) ) return result;
            String expression = SafeActions.toAction(actionId);
            result = true;
            MethodExpression actionExpression = Expressions.instance().createMethodExpression(expression);
            outcome = toString( actionExpression.invoke() );
            fromAction = expression;
            handleOutcome(facesContext, outcome, fromAction);
         }
      }
      else

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Examples of org.jboss.seam.core.Expressions.MethodExpression

         le.initCause(ex);
         throw le;
      }
      
      // If an authentication method has been specified, use that to authenticate
      MethodExpression mb = Identity.instance().getAuthenticateMethod();
      if (mb != null)
      {
         try
         {
           return (Boolean) mb.invoke();      
         }
         catch (Exception ex)
         {
            log.error("Error invoking login method", ex);
            throw new LoginException(ex.getMessage());

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