com.pingcap.tikv.meta.TiTimestamp Maven / Gradle / Ivy

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/*
 * Copyright 2017 PingCAP, 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,
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.pingcap.tikv.meta;

import java.io.Serializable;
import java.util.Objects;

/** TiTimestamp is the timestamp returned by timestamp oracle inside placement driver */
public class TiTimestamp implements Serializable {
  private static final int PHYSICAL_SHIFT_BITS = 18;

  private final long physical;
  private final long logical;

  public TiTimestamp(long p, long l) {
    this.physical = p;
    this.logical = l;
  }

  public long getVersion() {
    return (physical << PHYSICAL_SHIFT_BITS) + logical;
  }

  public long getPhysical() {
    return this.physical;
  }

  public long getLogical() {
    return this.logical;
  }

  @Override
  public boolean equals(Object other) {
    if (other == this) {
      return true;
    }
    if (!(other instanceof TiTimestamp)) {
      return false;
    }
    return this.getVersion() == ((TiTimestamp) other).getVersion();
  }

  @Override
  public int hashCode() {
    return Objects.hash(getVersion());
  }
}