commons-io-2.6-sources.jar is the source JAR file for Apache Commons IO 2.6, which is a library of utilities to assist with developing IO functionality.

JAR File Size and Download Location:

JAR name: commons-io-2.6-sources.jar
Target JDK version: 1.7
Dependency: None
File size: 280,834 bytes
Release date: 15-Oct-2017
Download: Apache Commons IO Website

⏎ org/apache/commons/io/comparator/ReverseComparator.java

/*
 * 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.comparator;

import java.io.File;
import java.io.Serializable;
import java.util.Comparator;

/**
 * Reverses the result of comparing two objects using
 * the delegate {@link Comparator}.
 *
 * @since 1.4
 */
class ReverseComparator extends AbstractFileComparator implements Serializable {

    private static final long serialVersionUID = -4808255005272229056L;
    private final Comparator<File> delegate;

    /**
     * Construct an instance with the specified delegate {@link Comparator}.
     *
     * @param delegate The comparator to delegate to
     */
    public ReverseComparator(final Comparator<File> delegate) {
        if (delegate == null) {
            throw new IllegalArgumentException("Delegate comparator is missing");
        }
        this.delegate = delegate;
    }

    /**
     * Compare using the delegate Comparator, but reversing the result.
     *
     * @param file1 The first file to compare
     * @param file2 The second file to compare
     * @return the result from the delegate {@link Comparator#compare(Object, Object)}
     * reversing the value (i.e. positive becomes negative and vice versa)
     */
    @Override
    public int compare(final File file1, final File file2) {
        return delegate.compare(file2, file1); // parameters switched round
    }

    /**
     * String representation of this file comparator.
     *
     * @return String representation of this file comparator
     */
    @Override
    public String toString() {
        return super.toString() + "[" + delegate.toString() + "]";
    }

}

⏎ org/apache/commons/io/comparator/ReverseComparator.java

Or download all of them as a single archive file:

File name: commons-io-2.6-sources.jar
File size: 280834 bytes
Release date: 2017-10-05
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