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Remove as added after 2.0, and is now in subpackage 

git-svn-id: https://svn.apache.org/repos/asf/jakarta/commons/proper/collections/trunk@130821 13f79535-47bb-0310-9956-ffa450edef68
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Stephen Colebourne 2002-10-12 23:25:27 +00:00
parent 9a451b11ca
commit 332b8ff8d8
1 changed files with 0 additions and 98 deletions
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src/java/org/apache/commons/collections/UniqueFilterIterator.java
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/*
* $Header: /home/jerenkrantz/tmp/commons/commons-convert/cvs/home/cvs/jakarta-commons//collections/src/java/org/apache/commons/collections/Attic/UniqueFilterIterator.java,v 1.4 2002/10/12 22:15:18 scolebourne Exp $
* $Revision: 1.4 $
* $Date: 2002/10/12 22:15:18 $
*
* ====================================================================
*
* The Apache Software License, Version 1.1
*
* Copyright (c) 1999-2002 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 acknowlegement:
* "This product includes software developed by the
* Apache Software Foundation (http://www.apache.org/)."
* Alternately, this acknowlegement may appear in the software itself,
* if and wherever such third-party acknowlegements 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 Group.
*
* 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;
import java.util.HashSet;
import java.util.Iterator;
/** A FilterIterator which only returns "unique" Objects. Internally,
* the Iterator maintains a Set of objects it has already encountered,
* and duplicate Objects are skipped.
*
* @author Morgan Delagrange
* @version $Id: UniqueFilterIterator.java,v 1.4 2002/10/12 22:15:18 scolebourne Exp $
* @since 2.1
*/
public class UniqueFilterIterator extends FilterIterator {
//-------------------------------------------------------------------------
/**
* Constructs a new <Code>UniqueFilterIterator</Code>.
*
* @param iterator the iterator to use
*/
public UniqueFilterIterator( Iterator iterator ) {
super( iterator, new UniquePredicate() );
}
private static class UniquePredicate implements Predicate {
HashSet set = new HashSet();
public boolean evaluate(Object object) {
return set.add(object);
}
}
}