content: /*
   * NamespaceList.java July 2008
   *
   * Copyright (C) 2008, Niall Gallagher <niallg@users.sf.net>
   *
   * 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 com.aliyun.odps.simpleframework.xml;
  
  import java.lang.annotation.Retention;
  import java.lang.annotation.RetentionPolicy;
  
  /**
   * The <code>NamespaceList</code> annotation that is used to declare
   * namespaces that can be added to an element. This is used when 
   * there are several namespaces to add to the element without setting
   * any namespace to the element. This is useful when the scope of a
   * namespace needs to span several nodes. All prefixes declared in 
   * the namespaces will be available to the child nodes.
   * <pre>
   * 
   *    &lt;example xmlns:root="http://www.example.com/root"&gt;
   *       &lt;anonymous&gt;anonymous element&lt;/anonymous&gt;
   *    &lt;/example&gt;
   *    
   * </pre>
   * The above XML example shows how a prefixed namespace has been added
   * to the element without qualifying that element. Such declarations
   * will allow child elements to pick up the parents prefix when this
   * is required, this avoids having to redeclare the same namespace.
   * 
   * @author Niall Gallagher
   *
   * @see Namespace
   */
  @Retention(RetentionPolicy.RUNTIME)
  public @interface NamespaceList {
  
     /**
      * This is used to acquire the namespaces that are declared on
      * the class. Any number of namespaces can be declared. None of
      * the declared namespaces will be made the elements namespace,
      * instead it will simply declare the namespaces so that the
      * reference URI and prefix will be made available to children.
      * 
      * @return this returns the namespaces that are declared.
      */
     Namespace[] value() default {};
  }
  