| /** |
| * 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.gora.tutorial.log; |
| |
| import java.io.DataInput; |
| import java.io.DataOutput; |
| import java.io.IOException; |
| |
| import org.apache.hadoop.io.WritableComparable; |
| |
| /** |
| * A WritableComparable containing a key-value WritableComparable pair. |
| * @param <K> the class of key |
| * @param <V> the class of value |
| */ |
| public class KeyValueWritable<K extends WritableComparable, V extends WritableComparable> |
| implements WritableComparable<KeyValueWritable<K,V>> { |
| |
| protected K key = null; |
| protected V value = null; |
| |
| public KeyValueWritable() { |
| } |
| |
| public KeyValueWritable(K key, V value) { |
| this.key = key; |
| this.value = value; |
| } |
| |
| public K getKey() { |
| return key; |
| } |
| |
| public void setKey(K key) { |
| this.key = key; |
| } |
| |
| public V getValue() { |
| return value; |
| } |
| |
| public void setValue(V value) { |
| this.value = value; |
| } |
| |
| @Override |
| public void readFields(DataInput in) throws IOException { |
| if(key == null) { |
| |
| } |
| key.readFields(in); |
| value.readFields(in); |
| } |
| |
| @Override |
| public void write(DataOutput out) throws IOException { |
| key.write(out); |
| value.write(out); |
| } |
| |
| @Override |
| public int hashCode() { |
| final int prime = 31; |
| int result = 1; |
| result = prime * result + ((key == null) ? 0 : key.hashCode()); |
| result = prime * result + ((value == null) ? 0 : value.hashCode()); |
| return result; |
| } |
| |
| @Override |
| public boolean equals(Object obj) { |
| if (this == obj) |
| return true; |
| if (obj == null) |
| return false; |
| if (getClass() != obj.getClass()) |
| return false; |
| KeyValueWritable other = (KeyValueWritable) obj; |
| if (key == null) { |
| if (other.key != null) |
| return false; |
| } else if (!key.equals(other.key)) |
| return false; |
| if (value == null) { |
| if (other.value != null) |
| return false; |
| } else if (!value.equals(other.value)) |
| return false; |
| return true; |
| } |
| |
| @Override |
| public int compareTo(KeyValueWritable<K, V> o) { |
| int cmp = key.compareTo(o.key); |
| if(cmp != 0) |
| return cmp; |
| |
| return value.compareTo(o.value); |
| } |
| } |