Java tutorial
/** * Copyright 2014 tgrape Inc. * * Licensed 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 ph.fingra.hadoop.mapred.parts.distribution.domain; import java.io.DataInput; import java.io.DataOutput; import java.io.IOException; import org.apache.commons.lang.builder.HashCodeBuilder; import ph.fingra.hadoop.mapred.common.BaseWritableComparable; public class CountrySesstimeKey extends BaseWritableComparable<CountrySesstimeKey> { public String appkey = ""; public String country = ""; public String session = ""; public String utctime = ""; public void set(String appkey, String country, String session, String utctime) { this.appkey = appkey; this.country = country; this.session = session; this.utctime = utctime; } @Override public void readFields(DataInput in) throws IOException { this.appkey = in.readUTF(); this.country = in.readUTF(); this.session = in.readUTF(); this.utctime = in.readUTF(); } @Override public void write(DataOutput out) throws IOException { out.writeUTF(this.appkey); out.writeUTF(this.country); out.writeUTF(this.session); out.writeUTF(this.utctime); } @Override public int compareTo(CountrySesstimeKey o) { int ret = 0; ret = this.appkey.compareTo(o.appkey); if (ret != 0) return ret; ret = this.country.compareTo(o.country); if (ret != 0) return ret; ret = this.session.compareTo(o.session); if (ret != 0) return ret; ret = this.utctime.compareTo(o.utctime); return ret; } @Override public int hashCode() { return HashCodeBuilder.reflectionHashCode(this); } }