00001 /* 00002 * ValueUpdater.hpp 00003 * 00004 * Copyright (c) 2000, 2020, Oracle and/or its affiliates. All rights reserved. 00005 * 00006 * Oracle is a registered trademarks of Oracle Corporation and/or its 00007 * affiliates. 00008 * 00009 * This software is the confidential and proprietary information of Oracle 00010 * Corporation. You shall not disclose such confidential and proprietary 00011 * information and shall use it only in accordance with the terms of the 00012 * license agreement you entered into with Oracle. 00013 * 00014 * This notice may not be removed or altered. 00015 */ 00016 #ifndef COH_VALUE_UPDATER_HPP 00017 #define COH_VALUE_UPDATER_HPP 00018 00019 #include "coherence/lang.ns" 00020 00021 COH_OPEN_NAMESPACE2(coherence,util) 00022 00023 00024 /** 00025 * ValueUpdater is used to update an object's state. 00026 * 00027 * @author jh 2008.02.26 00028 */ 00029 class COH_EXPORT ValueUpdater 00030 : public interface_spec<ValueUpdater> 00031 { 00032 // ----- ValueUpdater interface --------------------------------------- 00033 00034 public: 00035 /** 00036 * Update the state of the passed target object using the passed 00037 * value. 00038 * 00039 * @param hTarget the Object to update the state of 00040 * @param ohValue the new value to update the state with 00041 * 00042 * @throws ClassCastException if this ValueUpdater is incompatible with 00043 * the passed target object or the value and the 00044 * implementation <b>requires</b> the passed object or the 00045 * value to be of a certain type 00046 * @throws Exception if this ValueUpdater encounters a checked 00047 * exception in the course of updating the target object 00048 * @throws IllegalArgumentException if this ValueUpdater cannot handle 00049 * the passed target object or value for any other reason; 00050 * an implementor should include a descriptive message 00051 */ 00052 virtual void update(Object::Handle hTarget, 00053 Object::Holder ohValue) const = 0; 00054 }; 00055 00056 COH_CLOSE_NAMESPACE2 00057 00058 #endif // COH_VALUE_UPDATER_HPP