com.gemstone.gemfire.internal.cache.CompactableOplog Maven / Gradle / Ivy

Show more of this group Show more artifacts with this name
Show all versions of gemfire-core Show documentation

SnappyData store based off Pivotal GemFireXD

The newest version!

/*
 * 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 com.gemstone.gemfire.internal.cache.DiskStoreImpl.OplogCompactor;
import com.gemstone.gemfire.internal.cache.persistence.BytesAndBits;
import com.gemstone.gemfire.internal.cache.persistence.DiskRegionView;
/**
 * Contract that must be implemented by oplogs so that
 * they can be compacted.
 * 
 * @author Darrel Schneider
 * 
 * @since 6.5
 */

public interface CompactableOplog {
  public void prepareForCompact();
  public int compact(OplogCompactor compactor);
  public BytesAndBits getBytesAndBits(DiskRegionView dr, DiskId id,
      boolean faultIn, boolean bitOnly);
  public BytesAndBits getNoBuffer(DiskRegion dr, DiskId id);
}