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- /*
- * Copyright (c) 2006-2010 Chris Smith, Shane Mc Cormack, Gregory Holmes
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to deal
- * in the Software without restriction, including without limitation the rights
- * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
- * copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
- * SOFTWARE.
- */
-
- package com.dmdirc.util;
-
- import java.util.List;
-
- /**
- * Wraps a Map<S, List<T>> with various convenience methods for
- * accessing the data. Implements a Map-like interface for easier transition.
- * This implementation uses WeakLists (i.e., lists of weak references) - all
- * references to values are wrapped in WeakReferences.
- *
- * @param <S> the type of keys maintained by this map
- * @param <T> the type of mapped values
- * @author chris
- */
- public class WeakMapList<S,T> extends MapList<S,T> {
-
- /**
- * Retrieves the list of values associated with the specified key, creating
- * the key if neccessary.
- *
- * @param key The key to retrieve
- * @return A list of the specified key's values
- */
- @Override
- public List<T> safeGet(final S key) {
- if (!map.containsKey(key)) {
- map.put(key, new WeakList<T>());
- }
-
- return map.get(key);
- }
- }
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