eagle.query.aggregate.raw.GroupbyKeyValue.java Source code

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Here is the source code for eagle.query.aggregate.raw.GroupbyKeyValue.java

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/*
 * 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 eagle.query.aggregate.raw;

import org.apache.hadoop.io.Writable;

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

/**
 * <h3>Groupby KeyValue Structure</h3>
 * <pre>
 * {
 *  key: GroupbyKey
 *  value: GroupbyValue
 * }
 * </pre>
 * @see GroupbyKey
 * @see GroupbyValue
 *
 * @since : 11/4/14,2014
 */
public class GroupbyKeyValue implements Writable {
    private GroupbyKey key;
    private GroupbyValue value;

    public GroupbyKeyValue() {
        this.key = new GroupbyKey();
        this.value = new GroupbyValue();
    }

    public GroupbyKeyValue(GroupbyKey key, GroupbyValue value) {
        this.key = key;
        this.value = value;
    }

    public GroupbyKey getKey() {
        return key;
    }

    public void setKey(GroupbyKey key) {
        this.key = key;
    }

    public GroupbyValue getValue() {
        return value;
    }

    public void setValue(GroupbyValue value) {
        this.value = value;
    }

    /**
     * Serialize the fields of this object to <code>out</code>.
     *
     * @param out <code>DataOuput</code> to serialize this object into.
     * @throws java.io.IOException
     */
    @Override
    public void write(DataOutput out) throws IOException {
        this.key.write(out);
        this.value.write(out);
    }

    /**
     * Deserialize the fields of this object from <code>in</code>.
     * <p/>
     * <p>For efficiency, implementations should attempt to re-use storage in the
     * existing object where possible.</p>
     *
     * @param in <code>DataInput</code> to deseriablize this object from.
     * @throws java.io.IOException
     */
    @Override
    public void readFields(DataInput in) throws IOException {
        this.key.readFields(in);
        this.value.readFields(in);
    }
}