Constructor Detail

• PrefixKeyDeltaEncoder

  public PrefixKeyDeltaEncoder()

Method Detail

• internalEncode

  public int internalEncode(Cell cell,
                   HFileBlockDefaultEncodingContext encodingContext,
                   DataOutputStream out)
                     throws IOException

  Specified by:

  internalEncode in class BufferedDataBlockEncoder

  Throws:

  IOException

• writeKeyExcludingCommon

  private void writeKeyExcludingCommon(Cell cell,
                             int commonPrefix,
                             DataOutputStream out)
                                throws IOException

  Throws:

  IOException

• internalDecodeKeyValues

  protected ByteBuffer internalDecodeKeyValues(DataInputStream source,
                                   int allocateHeaderLength,
                                   int skipLastBytes,
                                   HFileBlockDefaultDecodingContext decodingCtx)
                                        throws IOException

  Specified by:

  internalDecodeKeyValues in class BufferedDataBlockEncoder

  Throws:

  IOException

• decodeKeyValue

  private int decodeKeyValue(DataInputStream source,
                   ByteBuffer buffer,
                   int prevKeyOffset)
                      throws IOException,
                             EncoderBufferTooSmallException

  Throws:

  IOException

  EncoderBufferTooSmallException

• getFirstKeyInBlock

  public ByteBuffer getFirstKeyInBlock(ByteBuffer block)

  Description copied from interface: DataBlockEncoder
  Return first key in block. Useful for indexing. Typically does not make a deep copy but returns a buffer wrapping a segment of the actual block's byte array. This is because the first key in block is usually stored unencoded.

  Parameters:

  block - encoded block we want index, the position will not change

  Returns:

  First key in block.

• toString

  public String toString()

  Overrides:

  toString in class Object

• createSeeker

  public DataBlockEncoder.EncodedSeeker createSeeker(KeyValue.KVComparator comparator,
                                            HFileBlockDecodingContext decodingCtx)

  Description copied from interface: DataBlockEncoder
  Create a HFileBlock seeker which find KeyValues within a block.

  Parameters:

  comparator - what kind of comparison should be used

  Returns:

  A newly created seeker.