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/*
 *  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 java.io;

/**
 * An interface for filtering {@link File} objects based on their names
 * or the directory they reside in.
 *
 * @see File
 * @see File#list(FilenameFilter)
 */
public interface FilenameFilter {

    /**
     * Indicates if a specific filename matches this filter.
     *
     * @param dir
     *            the directory in which the {@code filename} was found.
     * @param filename
     *            the name of the file in {@code dir} to test.
     * @return  {@code true} if the filename matches the filter
     *            and can be included in the list, {@code false}
     *            otherwise.
     */
    public abstract boolean accept(File dir, String filename);
}