geode-core/src/main/java/org/apache/geode/internal/cache/entries/AbstractDiskRegionEntry.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.geode.internal.cache.entries;

import org.apache.geode.internal.cache.BucketRegionQueue;
import org.apache.geode.internal.cache.EntryEventImpl;
import org.apache.geode.internal.cache.LocalRegion;
import org.apache.geode.internal.cache.RegionClearedException;
import org.apache.geode.internal.cache.RegionEntryContext;
import org.apache.geode.internal.cache.wan.GatewaySenderEventImpl;
import org.apache.geode.internal.cache.wan.serial.SerialGatewaySenderQueue;
import org.apache.geode.internal.offheap.annotations.Unretained;

public abstract class AbstractDiskRegionEntry extends AbstractRegionEntry implements DiskEntry {
  protected AbstractDiskRegionEntry(RegionEntryContext context, Object value) {
    super(context, value);
  }

  @Override
  public void setValue(RegionEntryContext context, @Unretained Object v)
      throws RegionClearedException {
    setValue(context, v, null);
  }

  @Override
  public void setValue(RegionEntryContext context, @Unretained Object value, EntryEventImpl event)
      throws RegionClearedException {
    Helper.update(this, (LocalRegion) context, value, event);
    setRecentlyUsed(context); // fix for bug #42284 - entry just put into the cache is evicted
  }

  /**
   * Sets the value with a {@link RegionEntryContext}.
   *
   * @param context the value's context.
   * @param value an entry value.
   */
  @Override
  public void setValueWithContext(RegionEntryContext context, @Unretained Object value) {
    _setValue(value);
    releaseOffHeapRefIfRegionBeingClosedOrDestroyed(context, value);
  }

  // Do not add any instances fields to this class.
  // Instead add them to the DISK section of LeafRegionEntry.cpp.

  @Override
  public void handleValueOverflow(RegionEntryContext context) {
    if (context instanceof BucketRegionQueue
        || context instanceof SerialGatewaySenderQueue.SerialGatewaySenderQueueMetaRegion) {
      GatewaySenderEventImpl.release(this.getValue()); // OFFHEAP _getValue ok
    }
  }
}