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Commons IO example source code file (NotFileFilter.java)
The Commons IO NotFileFilter.java source code/* * 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.io.filefilter; import java.io.File; import java.io.Serializable; /** * This filter produces a logical NOT of the filters specified. * * @since Commons IO 1.0 * @version $Revision: 1005099 $ $Date: 2010-10-06 17:13:01 +0100 (Wed, 06 Oct 2010) $ * * @author Stephen Colebourne * @see FileFilterUtils#notFileFilter(IOFileFilter) */ public class NotFileFilter extends AbstractFileFilter implements Serializable { /** The filter */ private final IOFileFilter filter; /** * Constructs a new file filter that NOTs the result of another filter. * * @param filter the filter, must not be null * @throws IllegalArgumentException if the filter is null */ public NotFileFilter(IOFileFilter filter) { if (filter == null) { throw new IllegalArgumentException("The filter must not be null"); } this.filter = filter; } /** * Returns the logical NOT of the underlying filter's return value for the same File. * * @param file the File to check * @return true if the filter returns false */ @Override public boolean accept(File file) { return ! filter.accept(file); } /** * Returns the logical NOT of the underlying filter's return value for the same arguments. * * @param file the File directory * @param name the filename * @return true if the filter returns false */ @Override public boolean accept(File file, String name) { return ! filter.accept(file, name); } /** * Provide a String representaion of this file filter. * * @return a String representaion */ @Override public String toString() { return super.toString() + "(" + filter.toString() + ")"; } } Other Commons IO examples (source code examples)Here is a short list of links related to this Commons IO NotFileFilter.java source code file: |
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