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Server functionality for HBase

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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 org.apache.hadoop.hbase.util;

import org.apache.hadoop.hbase.classification.InterfaceAudience;

/**
 * An environment edge that uses a manually set value. This is useful for testing events that are supposed to
 * happen in the same millisecond.
 */
@InterfaceAudience.Private
public class ManualEnvironmentEdge implements EnvironmentEdge {

  // Sometimes 0 ts might have a special value, so lets start with 1
  protected long value = 1L;

  public void setValue(long newValue) {
    value = newValue;
  }

  public void incValue(long addedValue) {
    value += addedValue;
  }

  @Override
  public long currentTimeMillis() {
    return this.value;
  }
}