- /*
- * Copyright 2003-2004 The Apache Software Foundation
- *
- * Licensed 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.commons.collections.bidimap;
-
- import java.util.Comparator;
- import java.util.SortedMap;
-
- import org.apache.commons.collections.SortedBidiMap;
-
- /**
- * Provides a base decorator that enables additional functionality to be added
- * to a SortedBidiMap via decoration.
- * <p>
- * Methods are forwarded directly to the decorated map.
- * <p>
- * This implementation does not perform any special processing with the map views.
- * Instead it simply returns the inverse from the wrapped map. This may be
- * undesirable, for example if you are trying to write a validating implementation
- * it would provide a loophole around the validation.
- * But, you might want that loophole, so this class is kept simple.
- *
- * @since Commons Collections 3.0
- * @version $Revision: 1.4 $ $Date: 2004/02/18 00:57:39 $
- *
- * @author Stephen Colebourne
- */
- public abstract class AbstractSortedBidiMapDecorator
- extends AbstractOrderedBidiMapDecorator implements SortedBidiMap {
-
- /**
- * Constructor that wraps (not copies).
- *
- * @param map the map to decorate, must not be null
- * @throws IllegalArgumentException if the collection is null
- */
- public AbstractSortedBidiMapDecorator(SortedBidiMap map) {
- super(map);
- }
-
- /**
- * Gets the map being decorated.
- *
- * @return the decorated map
- */
- protected SortedBidiMap getSortedBidiMap() {
- return (SortedBidiMap) map;
- }
-
- //-----------------------------------------------------------------------
- public SortedBidiMap inverseSortedBidiMap() {
- return getSortedBidiMap().inverseSortedBidiMap();
- }
-
- public Comparator comparator() {
- return getSortedBidiMap().comparator();
- }
-
- public SortedMap subMap(Object fromKey, Object toKey) {
- return getSortedBidiMap().subMap(fromKey, toKey);
- }
-
- public SortedMap headMap(Object toKey) {
- return getSortedBidiMap().headMap(toKey);
- }
-
- public SortedMap tailMap(Object fromKey) {
- return getSortedBidiMap().tailMap(fromKey);
- }
-
- }