Constructor Detail

• ByteBufferArray

  public ByteBufferArray(long capacity,
                 boolean directByteBuffer)

  We allocate a number of byte buffers as the capacity. In order not to out of the array bounds for the last byte(see multiple(long, int, byte[], int, org.apache.hadoop.hbase.util.ByteBufferArray.Visitor)), we will allocate one additional buffer with capacity 0;

  Parameters:

  capacity - total size of the byte buffer array

  directByteBuffer - true if we allocate direct buffer

Method Detail

• getMultiple

  public int getMultiple(long start,
                int len,
                byte[] dstArray)

  Transfers bytes from this buffer array into the given destination array

  Parameters:

  start - start position in the ByteBufferArray

  len - The maximum number of bytes to be written to the given array

  dstArray - The array into which bytes are to be written

  Returns:

  number of bytes read

• getMultiple

  public int getMultiple(long start,
                int len,
                byte[] dstArray,
                int dstOffset)

  Transfers bytes from this buffer array into the given destination array

  Parameters:

  start - start offset of this buffer array

  len - The maximum number of bytes to be written to the given array

  dstArray - The array into which bytes are to be written

  dstOffset - The offset within the given array of the first byte to be written

  Returns:

  number of bytes read

• putMultiple

  public void putMultiple(long start,
                 int len,
                 byte[] srcArray)

  Transfers bytes from the given source array into this buffer array

  Parameters:

  start - start offset of this buffer array

  len - The maximum number of bytes to be read from the given array

  srcArray - The array from which bytes are to be read

• putMultiple

  public void putMultiple(long start,
                 int len,
                 byte[] srcArray,
                 int srcOffset)

  Transfers bytes from the given source array into this buffer array

  Parameters:

  start - start offset of this buffer array

  len - The maximum number of bytes to be read from the given array

  srcArray - The array from which bytes are to be read

  srcOffset - The offset within the given array of the first byte to be read