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1   /*
2    * Copyright (c) 2011.  The Apache Software Foundation
3    *
4    * Licensed to the Apache Software Foundation (ASF) under one
5    * or more contributor license agreements.  See the NOTICE file
6    * distributed with this work for additional information
7    * regarding copyright ownership.  The ASF licenses this file
8    * to you under the Apache License, Version 2.0 (the
9    * "License"); you may not use this file except in compliance
10   * with the License.  You may obtain a copy of the License at
11   *
12   *     http://www.apache.org/licenses/LICENSE-2.0
13   *
14   * Unless required by applicable law or agreed to in writing, software
15   * distributed under the License is distributed on an "AS IS" BASIS,
16   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
17   * See the License for the specific language governing permissions and
18   * limitations under the License.
19   */
20  
21  package org.apache.hadoop.hbase.hbql.util;
22  
23  import org.apache.hadoop.hbase.hbql.impl.ElementPool;
24  
25  public abstract class PoolableElement<T extends PoolableElement> {
26  
27      private final ElementPool<T> elementPool;
28  
29      protected PoolableElement(final ElementPool<T> elementPool) {
30          this.elementPool = elementPool;
31      }
32  
33      protected ElementPool<T> getElementPool() {
34          return this.elementPool;
35      }
36  
37      public abstract void resetElement();
38  
39      public abstract void releaseElement();
40  }