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/*
 * Copyright (c) 2010-2015 Pivotal Software, Inc. All rights reserved.
 *
 * 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. See accompanying
 * LICENSE file.
 */
package com.gemstone.gemfire.internal.cache;

import java.util.concurrent.Callable;
import com.gemstone.gemfire.cache.Region;

/**
 * 
 * Takes delta to be evicted and tries to evict the least no of LRU entry which
 * would make evictedBytes more than or equal to the delta
 * 
 * @author Suranjan Kumar
 * @author Amardeep Rajpal
 * @since 6.0
 * 
 */
public class BucketRegionEvictior implements Callable {
  private LocalRegion region;

  private int bytesToEvict;

  public BucketRegionEvictior(LocalRegion region, int bytesToEvict) {
    this.bytesToEvict = bytesToEvict;
    this.region = region;
  }

  public Region getRegion() {
    return this.region;
  }

  public int getDelta() {
    return this.bytesToEvict;
  }

  public void setRegion(Region reg) {
    this.region = (LocalRegion)reg;
  }

  public void setDelta(int bytes) {
    this.bytesToEvict = bytes;
  }
  
  public Object call() throws Exception {
    ((AbstractLRURegionMap)region.entries).lruUpdateCallback(bytesToEvict);
    return null;
  }

}
 















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