How to use

clear

method

in

org.h2.mvstore.cache.CacheLongKeyLIRS

@Override
public synchronized FileChannel truncate(long newSize) throws IOException {
  cache.clear();
  base.truncate(newSize);
  return this;
}

/**
 * Set the read cache size in MB.
 *
 * @param mb the cache size in MB.
 */
public void setCacheSize(int mb) {
  final long bytes = (long) mb * 1024 * 1024;
  if (cache != null) {
    cache.setMaxMemory(bytes);
    cache.clear();
  }
  if (cacheChunkRef != null) {
    cacheChunkRef.setMaxMemory(bytes / 4);
    cacheChunkRef.clear();
  }
}

/**
 * Create a new cache with the given memory size.
 *
 * @param config the configuration
 */
@SuppressWarnings("unchecked")
public CacheLongKeyLIRS(Config config) {
  setMaxMemory(config.maxMemory);
  this.nonResidentQueueSize = config.nonResidentQueueSize;
  DataUtils.checkArgument(
      Integer.bitCount(config.segmentCount) == 1,
      "The segment count must be a power of 2, is {0}", config.segmentCount);
  this.segmentCount = config.segmentCount;
  this.segmentMask = segmentCount - 1;
  this.stackMoveDistance = config.stackMoveDistance;
  segments = new Segment[segmentCount];
  clear();
  // use the high bits for the segment
  this.segmentShift = 32 - Integer.bitCount(segmentMask);
}

cache.clear();
cacheChunkRef.clear();

@Override
public FileChannel truncate(long newSize) throws IOException {
  cache.clear();
  base.truncate(newSize);
  return this;
}

@Override
public synchronized FileChannel truncate(long newSize) throws IOException {
  cache.clear();
  base.truncate(newSize);
  return this;
}

@Override
public FileChannel truncate(long newSize) throws IOException {
  cache.clear();
  base.truncate(newSize);
  return this;
}

/**
 * Set the read cache size in MB.
 *
 * @param mb the cache size in MB.
 */
public void setCacheSize(int mb) {
  if (cache != null) {
    cache.setMaxMemory((long) mb * 1024 * 1024);
    cache.clear();
  }
}

/**
 * Set the read cache size in MB.
 *
 * @param mb the cache size in MB.
 */
public void setCacheSize(int mb) {
  if (cache != null) {
    cache.setMaxMemory((long) mb * 1024 * 1024);
    cache.clear();
  }
}

/**
 * Set the read cache size in MB.
 *
 * @param mb the cache size in MB.
 */
public void setCacheSize(int mb) {
  final long bytes = (long) mb * 1024 * 1024;
  if (cache != null) {
    cache.setMaxMemory(bytes);
    cache.clear();
  }
  if (cacheChunkRef != null) {
    cacheChunkRef.setMaxMemory(bytes / 4);
    cacheChunkRef.clear();
  }
}

/**
 * Create a new cache with the given memory size.
 *
 * @param config the configuration
 */
@SuppressWarnings("unchecked")
public CacheLongKeyLIRS(Config config) {
  setMaxMemory(config.maxMemory);
  this.nonResidentQueueSize = config.nonResidentQueueSize;
  DataUtils.checkArgument(
      Integer.bitCount(config.segmentCount) == 1,
      "The segment count must be a power of 2, is {0}", config.segmentCount);
  this.segmentCount = config.segmentCount;
  this.segmentMask = segmentCount - 1;
  this.stackMoveDistance = config.stackMoveDistance;
  segments = new Segment[segmentCount];
  clear();
  // use the high bits for the segment
  this.segmentShift = 32 - Integer.bitCount(segmentMask);
}

/**
 * Create a new cache with the given memory size.
 *
 * @param config the configuration
 */
@SuppressWarnings("unchecked")
public CacheLongKeyLIRS(Config config) {
  setMaxMemory(config.maxMemory);
  this.nonResidentQueueSize = config.nonResidentQueueSize;
  DataUtils.checkArgument(
      Integer.bitCount(config.segmentCount) == 1,
      "The segment count must be a power of 2, is {0}", config.segmentCount);
  this.segmentCount = config.segmentCount;
  this.segmentMask = segmentCount - 1;
  this.stackMoveDistance = config.stackMoveDistance;
  segments = new Segment[segmentCount];
  clear();
  // use the high bits for the segment
  this.segmentShift = 32 - Integer.bitCount(segmentMask);
}

/**
 * Create a new cache with the given memory size.
 *
 * @param config the configuration
 */
@SuppressWarnings("unchecked")
public CacheLongKeyLIRS(Config config) {
  setMaxMemory(config.maxMemory);
  this.nonResidentQueueSize = config.nonResidentQueueSize;
  DataUtils.checkArgument(
      Integer.bitCount(config.segmentCount) == 1,
      "The segment count must be a power of 2, is {0}", config.segmentCount);
  this.segmentCount = config.segmentCount;
  this.segmentMask = segmentCount - 1;
  this.stackMoveDistance = config.stackMoveDistance;
  segments = new Segment[segmentCount];
  clear();
  // use the high bits for the segment
  this.segmentShift = 32 - Integer.bitCount(segmentMask);
}

cache.clear();
cacheChunkRef.clear();

rowCache.clear();