/*

  * Copyright 2004-2011 the Seasar Foundation and the Others.

  *

  * 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.seasar.teeda.core.util;

 /**

  * @author manhole

  */

 public class ForEachContext {

     private static ThreadLocal threadLocal = new ThreadLocal();

     private int depth;

     public static ForEachContext getContext() {

         ForEachContext context = (ForEachContext) threadLocal.get();

         if (context == null) {

             context = new ForEachContext();

             threadLocal.set(context);

         }

         return context;

     }

     public void begin() {

         depth++;

     }

     public void end() {

         depth--;

         if (depth <= 0) {

             clear();

         }

     }

     public void clear() {

         depth = 0;

         threadLocal.set(null);

     }

     public boolean isInForEach() {

         if (0 < depth) {

             return true;

         }

         return false;

     }

 }