/tests/com/google/appengine/datanucleus/CollisionDatastoreDelegate.java
Java | 42 lines | 16 code | 7 blank | 19 comment | 0 complexity | 4fa1a9804ac9e3067dbbd2b7518b0d58 MD5 | raw file
1/* 2 * /********************************************************************** 3 * Copyright (c) 2009 Google Inc. 4 * 5 * Licensed under the Apache License, Version 2.0 (the "License"); 6 * you may not use this file except in compliance with the License. 7 * You may obtain a copy of the License at 8 * 9 * http://www.apache.org/licenses/LICENSE-2.0 10 * 11 * Unless required by applicable law or agreed to in writing, software 12 * distributed under the License is distributed on an "AS IS" BASIS, 13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 14 * See the License for the specific language governing permissions and 15 * limitations under the License. 16 * **********************************************************************/ 17 18package com.google.appengine.datanucleus; 19 20import com.google.apphosting.api.ApiProxy; 21 22import java.util.ConcurrentModificationException; 23 24/** 25 * @author Max Ross <maxr@google.com> 26 */ 27public class CollisionDatastoreDelegate extends ExceptionThrowingDatastoreDelegate { 28 29 public CollisionDatastoreDelegate(ApiProxy.Delegate inner, ExceptionPolicy policy) { 30 super(inner, policy); 31 } 32 33 public CollisionDatastoreDelegate(ApiProxy.Delegate inner) { 34 this(inner, ALWAYS_COLLIDE); 35 } 36 37 public static final ExceptionPolicy ALWAYS_COLLIDE = new BaseExceptionPolicy() { 38 protected void doIntercept(String methodName) { 39 throw new ConcurrentModificationException(); 40 } 41 }; 42}