- /*
- * Copyright 2002-2004 The Apache Software Foundation.
- *
- * Licensed 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;
-
- /**
- * This filter produces a logical NOT of the filters specified.
- *
- * @since Commons IO 1.0
- * @version $Revision: 1.6 $ $Date: 2004/02/23 04:37:57 $
- *
- * @author Stephen Colebourne
- */
- public class NotFileFilter extends AbstractFileFilter {
-
- /** The filter */
- private IOFileFilter filter;
-
- /**
- * Constructs a new file filter that NOTs the result of another filters.
- *
- * @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;
- }
-
- /**
- * Checks to see if both filters are true.
- *
- * @param file the File to check
- * @return true if the filter returns false
- */
- public boolean accept(File file) {
- return ! filter.accept(file);
- }
-
- /**
- * Checks to see if both filters are true.
- *
- * @param file the File directory
- * @param name the filename
- * @return true if the filter returns false
- */
- public boolean accept(File file, String name) {
- return ! filter.accept(file, name);
- }
-
- }