/*

  * Licensed to the Apache Software Foundation (ASF) under one

  * or more contributor license agreements.  See the NOTICE file

  * distributed with this work for additional information

  * regarding copyright ownership.  The ASF licenses this file

  * to you 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.myfaces.view.facelets.el;

 /**

  * Identification inferface for types that know about {@link javax.faces.view.Location}

  * and XML attribute name/value pair.

  * 

  *  <ol>

  *      <li>Location -  location instance - see {@link LocationAware}</li>

  *      <li>expressionString - expression String {@link javax.el.Expression#getExpressionString()}</li>

  *      <li>qName - the qualified name for attribute

  *      {@link javax.faces.view.facelets.TagAttribute#getQName()}</li>

  *  </ol>   

  * 

  *  If type implements this interface, we can say that it knows where instance

  *  implementing this interface is located in facelets view (line/column)

  *  and what XML attribute (name/value pair) makes it.

  *  

  * @author martinkoci

  */

 public interface ContextAware extends LocationAware

 {

     /**

      * @return expression string, for example "#{bean.actionMethod}" or "success"

      */

     public abstract String getExpressionString();

     /**

      * @return qName of XML attribute, for example "action" or "value"

      */

     public abstract String getQName();

 }