com.groupbyinc.common.apache.commons.collections4.iterators.UniqueFilterIterator Maven / Gradle / Ivy
/*
* 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.
*/
package org.apache.commons.collections4.iterators;
import java.util.Iterator;
import org.apache.commons.collections4.functors.UniquePredicate;
/**
* A FilterIterator which only returns "unique" Objects. Internally,
* the Iterator maintains a Set of objects it has already encountered,
* and duplicate Objects are skipped.
*
* @since 2.1
* @version $Id: UniqueFilterIterator.java 1479385 2013-05-05 20:31:06Z tn $
*/
public class UniqueFilterIterator extends FilterIterator {
//-------------------------------------------------------------------------
/**
* Constructs a new UniqueFilterIterator.
*
* @param iterator the iterator to use
*/
public UniqueFilterIterator(final Iterator iterator) {
super(iterator, UniquePredicate.uniquePredicate());
}
}