| /* |
| * 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. |
| */ |
| |
| #ifndef _DECAF_UTIL_ABSTRACTMAP_H_ |
| #define _DECAF_UTIL_ABSTRACTMAP_H_ |
| |
| #include <decaf/util/Config.h> |
| #include <decaf/lang/exceptions/UnsupportedOperationException.h> |
| #include <decaf/lang/exceptions/NullPointerException.h> |
| #include <decaf/lang/exceptions/IllegalArgumentException.h> |
| #include <decaf/util/concurrent/Synchronizable.h> |
| #include <decaf/util/concurrent/Mutex.h> |
| #include <decaf/util/Iterator.h> |
| #include <decaf/util/Map.h> |
| #include <decaf/util/Set.h> |
| #include <memory> |
| |
| namespace decaf { |
| namespace util { |
| |
| /** |
| * This class provides a skeletal implementation of the Map interface, to minimize the |
| * effort required to implement this interface. |
| * |
| * To implement an unmodifiable map, the programmer needs only to extend this class and |
| * provide an implementation for the entrySet method, which returns a set-view of the |
| * map's mappings. Typically, the returned set will, in turn, be implemented atop |
| * AbstractSet. This set should not support the add or remove methods, and its iterator |
| * should not support the remove method. |
| * |
| * To implement a modifiable map, the programmer must additionally override this class's |
| * put method (which otherwise throws an UnsupportedOperationException), and the iterator |
| * returned by entrySet().iterator() must additionally implement its remove method. |
| * |
| * The programmer should generally provide a void (no argument) and map constructor, as |
| * per the recommendation in the Map interface specification. |
| * |
| * The documentation for each non-abstract method in this class describes its |
| * implementation in detail. Each of these methods may be overridden if the map being |
| * implemented admits a more efficient implementation. |
| * |
| * @since 1.0 |
| */ |
| template< typename K, typename V> |
| class AbstractMap : public decaf::util::Map<K, V> { |
| protected: |
| |
| mutable util::concurrent::Mutex mutex; |
| |
| public: |
| |
| AbstractMap() : Map<K, V>(), mutex() {} |
| |
| AbstractMap(const Map<K, V>& map DECAF_UNUSED) : Map<K, V>(), mutex() {} |
| |
| AbstractMap(const AbstractMap<K, V>& map DECAF_UNUSED) : Map<K, V>(), mutex() {} |
| |
| virtual ~AbstractMap() {} |
| |
| public: |
| |
| virtual void lock() { |
| mutex.lock(); |
| } |
| |
| virtual bool tryLock() { |
| return mutex.tryLock(); |
| } |
| |
| virtual void unlock() { |
| mutex.unlock(); |
| } |
| |
| virtual void wait() { |
| mutex.wait(); |
| } |
| |
| virtual void wait(long long millisecs) { |
| mutex.wait(millisecs); |
| } |
| |
| virtual void wait(long long millisecs, int nanos) { |
| mutex.wait(millisecs, nanos); |
| } |
| |
| virtual void notify() { |
| mutex.notify(); |
| } |
| |
| virtual void notifyAll() { |
| mutex.notifyAll(); |
| } |
| |
| }; |
| |
| }} |
| |
| #endif /* _DECAF_UTIL_ABSTRACTMAP_H_ */ |