| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more contributor license |
| * agreements. See the NOTICE file distributed with this work for additional information regarding |
| * copyright ownership. The ASF licenses this file to You 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.apache.geode.internal.cache; |
| |
| import java.io.DataInput; |
| import java.io.DataOutput; |
| import java.io.IOException; |
| |
| import org.apache.geode.DataSerializer; |
| import org.apache.geode.internal.Assert; |
| |
| /** |
| * Used to create subclasses that wrap another callback argument by having a reference to the |
| * original and adding some data of their own. Customers should never see a callback arg that is an |
| * instance of this class. It is for internal purposes only. |
| * |
| * |
| * @since GemFire 5.7 |
| */ |
| public abstract class WrappedCallbackArgument { |
| |
| /** |
| * The original callbackArg |
| */ |
| private Object _originalCallbackArg; |
| |
| /** |
| * No arg constructor for DataSerializable. |
| */ |
| public WrappedCallbackArgument() {} |
| |
| /** |
| * Constructor. |
| * |
| * @param originalCallbackArg The original callback argument set by the caller or null if there |
| * was not callback arg |
| */ |
| public WrappedCallbackArgument(Object originalCallbackArg) { |
| this._originalCallbackArg = originalCallbackArg; |
| } |
| |
| |
| /** |
| * Returns the original callback argument. |
| * |
| * @return the original callback argument |
| */ |
| public Object getOriginalCallbackArg() { |
| return this._originalCallbackArg; |
| } |
| |
| public void toData(DataOutput out) throws IOException { |
| DataSerializer.writeObject(this._originalCallbackArg, out); |
| } |
| |
| public void fromData(DataInput in) throws IOException, ClassNotFoundException { |
| this._originalCallbackArg = DataSerializer.readObject(in); |
| } |
| |
| void setOriginalCallbackArgument(Object origCallbackArg) { |
| Assert.assertTrue(this._originalCallbackArg == null); |
| this._originalCallbackArg = origCallbackArg; |
| } |
| } |