// Copyright 2008, 2009 The Apache Software Foundation

 //

 // Licensed under the Apache License, Version 2.0 (the "License");

 // you may not use this file except in compliance with the License.

 // You may obtain a copy of the License at

 //

 //     http://www.apache.org/licenses/LICENSE-2.0

 //

 // Unless required by applicable law or agreed to in writing, software

 // distributed under the License is distributed on an "AS IS" BASIS,

 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

 // See the License for the specific language governing permissions and

 // limitations under the License.

 package org.apache.tapestry5.internal.bindings;

 import org.apache.tapestry5.ComponentResources;

 import org.apache.tapestry5.ioc.Location;

 public class RenderVariableBinding extends AbstractBinding

 {

     private final String description;

     private final ComponentResources resources;

     private final String name;

     public RenderVariableBinding(Location location, String description, ComponentResources resources, String name

     )

     {

         super(location);

         this.description = description;

         this.resources = resources;

         this.name = name;

     }

     @Override

     public void set(Object value)

     {

         resources.storeRenderVariable(name, value);

     }

     /**

      * Returns false, render variables are always variable.

      */

     @Override

     public boolean isInvariant()

     {

         return false;

     }

     @Override

     public String toString()

     {

         return String.format("RenderVariable[%s %s]", description, name);

     }

     public Object get()

     {

         return resources.getRenderVariable(name);

     }

     /**

      * Always returns Object since we don't (statically) know the type of object.

      */

     @Override

     public Class getBindingType()

     {

         return Object.class;

     }

 }