001 /* 002 * Created on Nov 1, 2007 003 * 004 * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with 005 * the License. You may obtain a copy of the License at 006 * 007 * http://www.apache.org/licenses/LICENSE-2.0 008 * 009 * Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on 010 * an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the 011 * specific language governing permissions and limitations under the License. 012 * 013 * Copyright @2007-2011 the original author or authors. 014 */ 015 package org.fest.util; 016 017 import java.util.*; 018 019 /** 020 * Filter for elements in a collection. 021 * @param <T> the generic type of the elements to return by the filter. 022 * 023 * @author Yvonne Wang 024 */ 025 public interface CollectionFilter<T> { 026 027 /** 028 * Filters a given collection. 029 * @param target the collection to filter. 030 * @return a list containing the filtered elements. 031 */ 032 List<T> filter(Collection<?> target); 033 }