SegmentDataManager.java

/**
 * Copyright (C) 2014-2016 LinkedIn Corp. (pinot-core@linkedin.com)
 *
 * 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 com.linkedin.pinot.core.data.manager.offline;

import java.util.concurrent.atomic.AtomicInteger;
import com.google.common.annotations.VisibleForTesting;
import com.linkedin.pinot.core.indexsegment.IndexSegment;


public abstract class SegmentDataManager {

  @VisibleForTesting
  private final AtomicInteger _refcnt;

  public SegmentDataManager() {
    _refcnt = new AtomicInteger(1);
  }

  public int incrementRefCnt() {
    return _refcnt.incrementAndGet();
  }

  public int decrementRefCnt() {
    return _refcnt.decrementAndGet();
  }


  public abstract IndexSegment getSegment();

  public abstract String getSegmentName();
  
  public abstract void destroy();
}