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.util.List;
  
  /**
   * Defines operations for conditional file filters.
   *
   * @since Commons IO 1.1
   * @version $Revision: 619103 $ $Date: 2008-02-06 19:01:17 +0000 (Wed, 06 Feb 2008) $
   *
   * @author Steven Caswell
   */
  public interface ConditionalFileFilter {
  
      /**
       * Adds the specified file filter to the list of file filters at the end of
       * the list.
       *
       * @param ioFileFilter the filter to be added
       * @since Commons IO 1.1
       */
      public void addFileFilter(IOFileFilter ioFileFilter);
  
      /**
       * Returns this conditional file filter's list of file filters.
       *
       * @return the file filter list
       * @since Commons IO 1.1
       */
      public List<IOFileFilter> getFileFilters();
  
      /**
       * Removes the specified file filter.
       *
       * @param ioFileFilter filter to be removed
       * @return <code>true</code> if the filter was found in the list,
       * <code>false</code> otherwise
       * @since Commons IO 1.1
       */
      public boolean removeFileFilter(IOFileFilter ioFileFilter);
  
      /**
       * Sets the list of file filters, replacing any previously configured
       * file filters on this filter.
       *
       * @param fileFilters the list of filters
       * @since Commons IO 1.1
       */
      public void setFileFilters(List<IOFileFilter> fileFilters);
  
  }
  