| /* |
| * Copyright 2009-2013 by The Regents of the University of California |
| * 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 from |
| * |
| * 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 edu.uci.ics.hyracks.dataflow.hadoop.data; |
| |
| import java.io.ObjectStreamException; |
| import java.io.Serializable; |
| |
| public class AbstractClassBasedDelegate<T> implements Serializable { |
| private static final long serialVersionUID = 1L; |
| private Class<? extends T> klass; |
| protected transient T instance; |
| |
| public AbstractClassBasedDelegate(Class<? extends T> klass) { |
| this.klass = klass; |
| init(); |
| } |
| |
| protected Object readResolve() throws ObjectStreamException { |
| init(); |
| return this; |
| } |
| |
| private void init() { |
| try { |
| instance = klass.newInstance(); |
| } catch (InstantiationException e) { |
| throw new RuntimeException(e); |
| } catch (IllegalAccessException e) { |
| throw new RuntimeException(e); |
| } |
| } |
| } |