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Commons IO example source code file (CanWriteFileFilter.java)

This example Commons IO source code file (CanWriteFileFilter.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" TM.

Java - Commons IO tags/keywords

abstractfilefilter, abstractfilefilter, can_write, cannot_write, canwritefilefilter, canwritefilefilter, io, iofilefilter, iofilefilter, notfilefilter, override, serializable, serializable

The Commons IO CanWriteFileFilter.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 accepts <code>Files that can be written to.
 * <p>
 * Example, showing how to print out a list of the
 * current directory's <i>writable files:
 *
 * <pre>
 * File dir = new File(".");
 * String[] files = dir.list( CanWriteFileFilter.CAN_WRITE );
 * for ( int i = 0; i < files.length; i++ ) {
 *     System.out.println(files[i]);
 * }
 * </pre>
 *
 * <p>
 * Example, showing how to print out a list of the
 * current directory's <i>un-writable files:
 *
 * <pre>
 * File dir = new File(".");
 * String[] files = dir.list( CanWriteFileFilter.CANNOT_WRITE );
 * for ( int i = 0; i < files.length; i++ ) {
 *     System.out.println(files[i]);
 * }
 * </pre>
 *
 * <p>
 * <b>N.B. For read-only files, use 
 *    <code>CanReadFileFilter.READ_ONLY.
 *
 * @since Commons IO 1.3
 * @version $Revision: 659817 $
 */
public class CanWriteFileFilter extends AbstractFileFilter implements Serializable {
    
    /** Singleton instance of <i>writable filter */
    public static final IOFileFilter CAN_WRITE = new CanWriteFileFilter();

    /** Singleton instance of not <i>writable filter */
    public static final IOFileFilter CANNOT_WRITE = new NotFileFilter(CAN_WRITE);

    /**
     * Restrictive consructor.
     */
    protected CanWriteFileFilter() {
    }
    
    /**
     * Checks to see if the file can be written to.
     * 
     * @param file  the File to check
     * @return <code>true if the file can be
     *  written to, otherwise <code>false.
     */
    @Override
    public boolean accept(File file) {
        return file.canWrite();
    }
    
}

Other Commons IO examples (source code examples)

Here is a short list of links related to this Commons IO CanWriteFileFilter.java source code file:

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