com.caucho.server.distcache.AbstractCacheEngine Maven / Gradle / Ivy

Go to download
/*
 * Copyright (c) 1998-2018 Caucho Technology -- all rights reserved
 *
 * This file is part of Resin(R) Open Source
 *
 * Each copy or derived work must preserve the copyright notice and this
 * notice unmodified.
 *
 * Resin Open Source is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * Resin Open Source is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, or any warranty
 * of NON-INFRINGEMENT.  See the GNU General Public License for more
 * details.
 *
 * You should have received a copy of the GNU General Public License
 * along with Resin Open Source; if not, write to the
 *
 *   Free Software Foundation, Inc.
 *   59 Temple Place, Suite 330
 *   Boston, MA 02111-1307  USA
 *
 * @author Scott Ferguson
 */

package com.caucho.server.distcache;

import java.io.InputStream;

import com.caucho.util.HashKey;

/**
 * Manages the distributed cache
 */
public class AbstractCacheEngine implements CacheEngine
{
  @Override
  public void start()
  {
  }
  
  @Override
  public void initCache(CacheImpl cache)
  {
  }
  
  @Override
  public int getServerIndex()
  {
    return -1;
  }

  @Override
  public boolean isLocalExpired(CacheConfig config,
                                  HashKey key,
                                  MnodeEntry mnodeEntry,
                                  long now)
  {
    return mnodeEntry.isExpired(now);
  }

  /*
  @Override
  public boolean loadData(HashKey key, 
                          HashKey valueKey, long valueIndex,
                          int flags)
  {
    return true;
  }
  */

  @Override
  public MnodeValue get(DistCacheEntry entry)
  {
    return null;
  }

  @Override
  public void put(HashKey key, 
                  HashKey cacheKey,
                  MnodeUpdate mnodeUpdate,
                  long valueDataId,
                  long valueDataTime)
  {
  }

  @Override
  public void remove(HashKey key, HashKey cacheKey, MnodeUpdate mnodeUpdate)
  {
  }

  @Override
  public void updateTime(HashKey key,
                         HashKey cacheKey,
                         MnodeEntry mnodeValue)
  {
  }
  
  @Override
  public boolean compareAndPut(DistCacheEntry entry,
                               long testValue,
                               MnodeUpdate mnodeUpdate,
                               long valueDataId,
                               long valueDataTime)
  {
    return false;
  }

  @Override
  public InputStream getAndPut(DistCacheEntry entry, 
                               MnodeUpdate mnodeValue,
                               long valueDataId,
                               long valueDataTime)
  {
    throw new UnsupportedOperationException(getClass().getName());
  }

  @Override
  public void notifyLease(HashKey key,
                          HashKey cacheKey,
                          int leaseOwner)
  {
  }
}