00001 /* 00002 * IterableCacheLoader.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_ITERABLE_CACHE_LOADER_HPP 00017 #define COH_ITERABLE_CACHE_LOADER_HPP 00018 00019 #include "coherence/lang.ns" 00020 #include "coherence/net/cache/CacheLoader.hpp" 00021 #include "coherence/util/Iterator.hpp" 00022 00023 00024 COH_OPEN_NAMESPACE3(coherence,net,cache) 00025 00026 using coherence::util::Iterator; 00027 00028 /** 00029 * A CacheLoader that can iterate its underlying contents. 00030 * 00031 * @author nsa 2008.07.01 00032 */ 00033 class COH_EXPORT IterableCacheLoader 00034 : public interface_spec<IterableCacheLoader, 00035 implements<CacheLoader> > 00036 { 00037 // ----- IterableCacheLoader interface ---------------------------------- 00038 00039 public: 00040 /** 00041 * Iterate all keys in the underlying store. 00042 * 00043 * @return a read-only iterator of the keys in the underlying store 00044 * 00045 * @throws UnsupportedOperationException if the underlying store is 00046 * not iterable 00047 */ 00048 virtual Iterator::Handle keys() = 0; 00049 }; 00050 00051 00052 COH_CLOSE_NAMESPACE3 00053 00054 00055 #endif // #ifndef COH_ITERABLE_CACHE_LOADER_HPP