src/test/java/org/apache/hadoop/mrunit/types/UncomparableWritable.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.hadoop.mrunit.types;

import java.io.DataInput;
import java.io.DataOutput;
import java.io.IOException;

import org.apache.hadoop.io.Writable;

/**
 * Almost the simplest not comparable writable. Used for testing
 * that implementing {@link Comparable} is indeed not required.
 */
public class UncomparableWritable implements Writable {

  private int value;

  public UncomparableWritable() {
  }

  public UncomparableWritable(int value) {
    this.value = value;
  }

  @Override
  public void readFields(DataInput input) throws IOException {
    value = input.readInt();
  }

  @Override
  public void write(DataOutput output) throws IOException {
    output.writeInt(value);
  }

  @Override
  public int hashCode() {
    return value;
  }

  @Override
  public boolean equals(Object obj) {
    return obj instanceof UncomparableWritable &&
        ((UncomparableWritable)obj).value == this.value;
  }

  @Override
  public String toString() {
    return super.toString() + "(value="+value+")";
  };

}