Add new abstract decorator classes
git-svn-id: https://svn.apache.org/repos/asf/jakarta/commons/proper/collections/trunk@131051 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Stephen Colebourne
parent
645063548a
commit
ba9cd0f544
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@ -0,0 +1,113 @@
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/*
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* $Header: /home/jerenkrantz/tmp/commons/commons-convert/cvs/home/cvs/jakarta-commons//collections/src/java/org/apache/commons/collections/decorators/Attic/AbstractIteratorDecorator.java,v 1.1 2003/05/09 16:38:16 scolebourne Exp $
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* ====================================================================
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*
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* The Apache Software License, Version 1.1
|
||||
*
|
||||
* Copyright (c) 2003 The Apache Software Foundation. All rights
|
||||
* reserved.
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions
|
||||
* are met:
|
||||
*
|
||||
* 1. Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
*
|
||||
* 2. Redistributions in binary form must reproduce the above copyright
|
||||
* notice, this list of conditions and the following disclaimer in
|
||||
* the documentation and/or other materials provided with the
|
||||
* distribution.
|
||||
*
|
||||
* 3. The end-user documentation included with the redistribution, if
|
||||
* any, must include the following acknowledgment:
|
||||
* "This product includes software developed by the
|
||||
* Apache Software Foundation (http://www.apache.org/)."
|
||||
* Alternately, this acknowledgment may appear in the software itself,
|
||||
* if and wherever such third-party acknowledgments normally appear.
|
||||
*
|
||||
* 4. The names "The Jakarta Project", "Commons", and "Apache Software
|
||||
* Foundation" must not be used to endorse or promote products derived
|
||||
* from this software without prior written permission. For written
|
||||
* permission, please contact apache@apache.org.
|
||||
*
|
||||
* 5. Products derived from this software may not be called "Apache"
|
||||
* nor may "Apache" appear in their names without prior written
|
||||
* permission of the Apache Software Foundation.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
|
||||
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
|
||||
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
|
||||
* DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
|
||||
* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
|
||||
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
|
||||
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
|
||||
* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
|
||||
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
|
||||
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
|
||||
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
||||
* SUCH DAMAGE.
|
||||
* ====================================================================
|
||||
*
|
||||
* This software consists of voluntary contributions made by many
|
||||
* individuals on behalf of the Apache Software Foundation. For more
|
||||
* information on the Apache Software Foundation, please see
|
||||
* <http://www.apache.org/>.
|
||||
*
|
||||
*/
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package org.apache.commons.collections.decorators;
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import java.util.Iterator;
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/**
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* <code>AbstractIteratorDecorator</code> decorates another
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* <code>Iterator</code>.
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* <p>
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* Methods are forwarded directly to the decorated iterator.
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* <p>
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* This class is similar to {@link org.apache.commons.collections.iterators.ProxyIterator},
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* however that class allows the iterator to be set, which is too insecure
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* for some decorators.
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*
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* @since Commons Collections 3.0
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* @version $Revision: 1.1 $ $Date: 2003/05/09 16:38:16 $
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*
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* @author Stephen Colebourne
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*/
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public abstract class AbstractIteratorDecorator implements Iterator {
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/** The iterator to delegate to */
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protected final Iterator iterator;
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/**
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* Constructor that wraps the specified iterator.
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*
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* @param iterator the iterator to decorate
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*/
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public AbstractIteratorDecorator(Iterator iterator) {
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this.iterator = iterator;
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}
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/**
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* Gets the decorated iterator.
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*
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* @return the decorated iterator
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*/
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protected Iterator getIterator() {
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return iterator;
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}
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//-----------------------------------------------------------------------
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public boolean hasNext() {
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return iterator.hasNext();
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}
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public Object next() {
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return iterator.next();
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}
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public void remove() {
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iterator.remove();
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}
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}
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@ -0,0 +1,176 @@
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/*
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* $Header: /home/jerenkrantz/tmp/commons/commons-convert/cvs/home/cvs/jakarta-commons//collections/src/java/org/apache/commons/collections/decorators/Attic/AbstractMapDecorator.java,v 1.1 2003/05/09 16:38:16 scolebourne Exp $
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* ====================================================================
|
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*
|
||||
* The Apache Software License, Version 1.1
|
||||
*
|
||||
* Copyright (c) 2003 The Apache Software Foundation. All rights
|
||||
* reserved.
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions
|
||||
* are met:
|
||||
*
|
||||
* 1. Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
*
|
||||
* 2. Redistributions in binary form must reproduce the above copyright
|
||||
* notice, this list of conditions and the following disclaimer in
|
||||
* the documentation and/or other materials provided with the
|
||||
* distribution.
|
||||
*
|
||||
* 3. The end-user documentation included with the redistribution, if
|
||||
* any, must include the following acknowledgment:
|
||||
* "This product includes software developed by the
|
||||
* Apache Software Foundation (http://www.apache.org/)."
|
||||
* Alternately, this acknowledgment may appear in the software itself,
|
||||
* if and wherever such third-party acknowledgments normally appear.
|
||||
*
|
||||
* 4. The names "The Jakarta Project", "Commons", and "Apache Software
|
||||
* Foundation" must not be used to endorse or promote products derived
|
||||
* from this software without prior written permission. For written
|
||||
* permission, please contact apache@apache.org.
|
||||
*
|
||||
* 5. Products derived from this software may not be called "Apache"
|
||||
* nor may "Apache" appear in their names without prior written
|
||||
* permission of the Apache Software Foundation.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
|
||||
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
|
||||
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
|
||||
* DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
|
||||
* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
|
||||
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
|
||||
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
|
||||
* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
|
||||
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
|
||||
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
|
||||
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
||||
* SUCH DAMAGE.
|
||||
* ====================================================================
|
||||
*
|
||||
* This software consists of voluntary contributions made by many
|
||||
* individuals on behalf of the Apache Software Foundation. For more
|
||||
* information on the Apache Software Foundation, please see
|
||||
* <http://www.apache.org/>.
|
||||
*
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*/
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package org.apache.commons.collections.decorators;
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import java.util.Collection;
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import java.util.Map;
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import java.util.Set;
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/**
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* <p>This <code>Map</code> wraps another <code>Map</code>
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* implementation, using the wrapped instance for its default
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* implementation. This class is used as a framework on which to
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* build to extensions for its wrapped <code>Map</code> object which
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* would be unavailable or inconvenient via sub-classing (but usable
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* via composition).</p>
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*
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* <p>This implementation does not perform any special processing with
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* {@link #entrySet()}, {@link #keySet()} or {@link #values()}. Instead
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* it simply returns the set/collection from the wrapped map. This may be
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* undesirable, for example if you are trying to write a validating
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* implementation it would provide a loophole around the validation. But,
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* you might want that loophole, so this class is kept simple.</p>
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*
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* @since Commons Collections 3.0
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* @version $Revision: 1.1 $ $Date: 2003/05/09 16:38:16 $
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*
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* @author Daniel Rall
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* @author Stephen Colebourne
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*/
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public abstract class AbstractMapDecorator implements Map {
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/** The <code>Map</code> to decorate */
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protected final Map map;
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/**
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* Constructor that wraps (not copies).
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*
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* @param map the map to decorate, must not be null
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* @throws IllegalArgumentException if the collection is null
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*/
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public AbstractMapDecorator(Map map) {
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if (map == null) {
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throw new IllegalArgumentException("Map must not be null");
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}
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this.map = map;
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}
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/**
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* Gets the map being decorated.
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*
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* @return the decorated map
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*/
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protected Map getMap() {
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return map;
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}
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//-----------------------------------------------------------------------
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public void clear() {
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map.clear();
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}
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public boolean containsKey(Object key) {
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return map.containsKey(key);
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}
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public boolean containsValue(Object value) {
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return map.containsValue(value);
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}
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public Set entrySet() {
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return map.entrySet();
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}
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public Object get(Object key) {
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return map.get(key);
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}
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public boolean isEmpty() {
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return map.isEmpty();
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}
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public Set keySet() {
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return map.keySet();
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}
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public Object put(Object key, Object value) {
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return map.put(key, value);
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}
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public void putAll(Map map) {
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map.putAll(map);
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}
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public Object remove(Object key) {
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return map.remove(key);
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}
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public int size() {
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return map.size();
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}
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public Collection values() {
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return map.values();
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}
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public boolean equals(Object object) {
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if (object == this) {
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return true;
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}
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return map.equals(object);
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}
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public int hashCode() {
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return map.hashCode();
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}
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public String toString() {
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return map.toString();
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}
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}
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@ -0,0 +1,130 @@
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/*
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* $Header: /home/jerenkrantz/tmp/commons/commons-convert/cvs/home/cvs/jakarta-commons//collections/src/java/org/apache/commons/collections/decorators/Attic/AbstractMapEntryDecorator.java,v 1.1 2003/05/09 16:38:16 scolebourne Exp $
|
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* ====================================================================
|
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*
|
||||
* The Apache Software License, Version 1.1
|
||||
*
|
||||
* Copyright (c) 2003 The Apache Software Foundation. All rights
|
||||
* reserved.
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions
|
||||
* are met:
|
||||
*
|
||||
* 1. Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
*
|
||||
* 2. Redistributions in binary form must reproduce the above copyright
|
||||
* notice, this list of conditions and the following disclaimer in
|
||||
* the documentation and/or other materials provided with the
|
||||
* distribution.
|
||||
*
|
||||
* 3. The end-user documentation included with the redistribution, if
|
||||
* any, must include the following acknowledgment:
|
||||
* "This product includes software developed by the
|
||||
* Apache Software Foundation (http://www.apache.org/)."
|
||||
* Alternately, this acknowledgment may appear in the software itself,
|
||||
* if and wherever such third-party acknowledgments normally appear.
|
||||
*
|
||||
* 4. The names "The Jakarta Project", "Commons", and "Apache Software
|
||||
* Foundation" must not be used to endorse or promote products derived
|
||||
* from this software without prior written permission. For written
|
||||
* permission, please contact apache@apache.org.
|
||||
*
|
||||
* 5. Products derived from this software may not be called "Apache"
|
||||
* nor may "Apache" appear in their names without prior written
|
||||
* permission of the Apache Software Foundation.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
|
||||
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
|
||||
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
|
||||
* DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
|
||||
* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
|
||||
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
|
||||
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
|
||||
* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
|
||||
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
|
||||
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
|
||||
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
||||
* SUCH DAMAGE.
|
||||
* ====================================================================
|
||||
*
|
||||
* This software consists of voluntary contributions made by many
|
||||
* individuals on behalf of the Apache Software Foundation. For more
|
||||
* information on the Apache Software Foundation, please see
|
||||
* <http://www.apache.org/>.
|
||||
*
|
||||
*/
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package org.apache.commons.collections.decorators;
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import java.util.Map;
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/**
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* <p>This <code>Map.Entry</code> wraps another <code>Map.Entry</code>
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* implementation, using the wrapped instance for its default
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* implementation. This class is used as a framework on which to
|
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* build to extensions for its wrapped <code>Map</code> object which
|
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* would be unavailable or inconvenient via sub-classing (but usable
|
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* via composition).</p>
|
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*
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* @since Commons Collections 3.0
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* @version $Revision: 1.1 $ $Date: 2003/05/09 16:38:16 $
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*
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* @author Stephen Colebourne
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*/
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public abstract class AbstractMapEntryDecorator implements Map.Entry {
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/** The <code>Map.Entry</code> to decorate */
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protected final Map.Entry entry;
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/**
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* Constructor that wraps (not copies).
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*
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* @param map the map to decorate, must not be null
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* @throws IllegalArgumentException if the collection is null
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*/
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public AbstractMapEntryDecorator(Map.Entry entry) {
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if (entry == null) {
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throw new IllegalArgumentException("Map entry must not be null");
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}
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this.entry = entry;
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}
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/**
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* Gets the map being decorated.
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*
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* @return the decorated map
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*/
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protected Map.Entry getMapEntry() {
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return entry;
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}
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//-----------------------------------------------------------------------
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public Object getKey() {
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return entry.getKey();
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}
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public Object getValue() {
|
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return entry.getValue();
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}
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public Object setValue(Object object) {
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return entry.setValue(object);
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}
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public boolean equals(Object object) {
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if (object == this) {
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return true;
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}
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return entry.equals(object);
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}
|
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|
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public int hashCode() {
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return entry.hashCode();
|
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}
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public String toString() {
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return entry.toString();
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}
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}
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|
|
@ -0,0 +1,122 @@
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/*
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* $Header: /home/jerenkrantz/tmp/commons/commons-convert/cvs/home/cvs/jakarta-commons//collections/src/java/org/apache/commons/collections/decorators/Attic/AbstractSortedMapDecorator.java,v 1.1 2003/05/09 16:38:16 scolebourne Exp $
|
||||
* ====================================================================
|
||||
*
|
||||
* The Apache Software License, Version 1.1
|
||||
*
|
||||
* Copyright (c) 2003 The Apache Software Foundation. All rights
|
||||
* reserved.
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions
|
||||
* are met:
|
||||
*
|
||||
* 1. Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
*
|
||||
* 2. Redistributions in binary form must reproduce the above copyright
|
||||
* notice, this list of conditions and the following disclaimer in
|
||||
* the documentation and/or other materials provided with the
|
||||
* distribution.
|
||||
*
|
||||
* 3. The end-user documentation included with the redistribution, if
|
||||
* any, must include the following acknowledgment:
|
||||
* "This product includes software developed by the
|
||||
* Apache Software Foundation (http://www.apache.org/)."
|
||||
* Alternately, this acknowledgment may appear in the software itself,
|
||||
* if and wherever such third-party acknowledgments normally appear.
|
||||
*
|
||||
* 4. The names "The Jakarta Project", "Commons", and "Apache Software
|
||||
* Foundation" must not be used to endorse or promote products derived
|
||||
* from this software without prior written permission. For written
|
||||
* permission, please contact apache@apache.org.
|
||||
*
|
||||
* 5. Products derived from this software may not be called "Apache"
|
||||
* nor may "Apache" appear in their names without prior written
|
||||
* permission of the Apache Software Foundation.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
|
||||
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
|
||||
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
|
||||
* DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
|
||||
* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
|
||||
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
|
||||
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
|
||||
* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
|
||||
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
|
||||
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
|
||||
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
||||
* SUCH DAMAGE.
|
||||
* ====================================================================
|
||||
*
|
||||
* This software consists of voluntary contributions made by many
|
||||
* individuals on behalf of the Apache Software Foundation. For more
|
||||
* information on the Apache Software Foundation, please see
|
||||
* <http://www.apache.org/>.
|
||||
*
|
||||
*/
|
||||
package org.apache.commons.collections.decorators;
|
||||
|
||||
import java.util.Comparator;
|
||||
import java.util.SortedMap;
|
||||
|
||||
/**
|
||||
* <p>This <code>SortedMap</code> wraps another <code>SortedMap</code>
|
||||
* implementation, using the wrapped instance for its default
|
||||
* implementation. This class is used as a framework on which to
|
||||
* build to extensions for its wrapped <code>Map</code> object which
|
||||
* would be unavailable or inconvenient via sub-classing (but usable
|
||||
* via composition).</p>
|
||||
*
|
||||
* @since Commons Collections 3.0
|
||||
* @version $Revision: 1.1 $ $Date: 2003/05/09 16:38:16 $
|
||||
*
|
||||
* @author Stephen Colebourne
|
||||
*/
|
||||
public abstract class AbstractSortedMapDecorator extends AbstractMapDecorator implements SortedMap {
|
||||
|
||||
/**
|
||||
* Constructor that wraps (not copies).
|
||||
*
|
||||
* @param map the map to decorate, must not be null
|
||||
* @throws IllegalArgumentException if the collection is null
|
||||
*/
|
||||
public AbstractSortedMapDecorator(SortedMap map) {
|
||||
super(map);
|
||||
}
|
||||
|
||||
/**
|
||||
* Gets the map being decorated.
|
||||
*
|
||||
* @return the decorated map
|
||||
*/
|
||||
protected SortedMap getSortedMap() {
|
||||
return (SortedMap) map;
|
||||
}
|
||||
|
||||
//-----------------------------------------------------------------------
|
||||
public Comparator comparator() {
|
||||
return getSortedMap().comparator();
|
||||
}
|
||||
|
||||
public Object firstKey() {
|
||||
return getSortedMap().firstKey();
|
||||
}
|
||||
|
||||
public SortedMap headMap(Object toKey) {
|
||||
return getSortedMap().headMap(toKey);
|
||||
}
|
||||
|
||||
public Object lastKey() {
|
||||
return getSortedMap().lastKey();
|
||||
}
|
||||
|
||||
public SortedMap subMap(Object fromKey, Object toKey) {
|
||||
return getSortedMap().subMap(fromKey, toKey);
|
||||
}
|
||||
|
||||
public SortedMap tailMap(Object fromKey) {
|
||||
return getSortedMap().tailMap(fromKey);
|
||||
}
|
||||
|
||||
}
|
||||
Loading…
Reference in New Issue