server/tserver/src/main/java/org/apache/accumulo/tserver/MemKey.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.accumulo.tserver;

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

import org.apache.accumulo.core.data.Key;

import com.google.common.annotations.VisibleForTesting;

@VisibleForTesting
public class MemKey extends Key {

  private int kvCount;

  public MemKey(byte[] row, byte[] cf, byte[] cq, byte[] cv, long ts, boolean del, boolean copy,
      int mc) {
    super(row, cf, cq, cv, ts, del, copy);
    this.kvCount = mc;
  }

  public MemKey() {
    super();
    this.kvCount = Integer.MAX_VALUE;
  }

  public MemKey(Key key, int mc) {
    super(key);
    this.kvCount = mc;
  }

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

  public int getKVCount() {
    return this.kvCount;
  }

  @Override
  public Object clone() throws CloneNotSupportedException {
    return super.clone();
  }

  @Override
  public void write(DataOutput out) throws IOException {
    super.write(out);
    out.writeInt(kvCount);
  }

  @Override
  public void readFields(DataInput in) throws IOException {
    super.readFields(in);
    kvCount = in.readInt();
  }

  @Override
  public int compareTo(Key k) {

    int cmp = super.compareTo(k);

    if (cmp == 0 && k instanceof MemKey) {
      cmp = ((MemKey) k).kvCount - kvCount;
    }

    return cmp;
  }

}