类 DefaultDataBuffer

方法详细资料

• getNativeBuffer

  public ByteBuffer getNativeBuffer()

  Directly exposes the native ByteBuffer that this buffer is based on also updating the ByteBuffer's position and limit to match the current readPosition() and readableByteCount().

  返回:

  the wrapped byte buffer

• factory

  public DefaultDataBufferFactory factory()

  从接口复制的说明: DataBuffer
  Return the DataBufferFactory that created this buffer.

  指定者:

  factory 在接口中 DataBuffer

  返回:

  the creating buffer factory

• indexOf

  public int indexOf​(IntPredicate predicate,
                     int fromIndex)

  从接口复制的说明: DataBuffer
  Return the index of the first byte in this buffer that matches the given predicate.

  指定者:

  indexOf 在接口中 DataBuffer

  参数:

  predicate - the predicate to match

  fromIndex - the index to start the search from

  返回:

  the index of the first byte that matches predicate; or -1 if none match

• lastIndexOf

  public int lastIndexOf​(IntPredicate predicate,
                         int fromIndex)

  从接口复制的说明: DataBuffer
  Return the index of the last byte in this buffer that matches the given predicate.

  指定者:

  lastIndexOf 在接口中 DataBuffer

  参数:

  predicate - the predicate to match

  fromIndex - the index to start the search from

  返回:

  the index of the last byte that matches predicate; or -1 if none match

• readableByteCount

  public int readableByteCount()

  从接口复制的说明: DataBuffer
  Return the number of bytes that can be read from this data buffer.

  指定者:

  readableByteCount 在接口中 DataBuffer

  返回:

  the readable byte count

• writableByteCount

  public int writableByteCount()

  从接口复制的说明: DataBuffer
  Return the number of bytes that can be written to this data buffer.

  指定者:

  writableByteCount 在接口中 DataBuffer

  返回:

  the writable byte count

• readPosition

  public int readPosition()

  从接口复制的说明: DataBuffer
  Return the position from which this buffer will read.

  指定者:

  readPosition 在接口中 DataBuffer

  返回:

  the read position

• readPosition

  public DefaultDataBuffer readPosition​(int readPosition)

  从接口复制的说明: DataBuffer
  Set the position from which this buffer will read.

  指定者:

  readPosition 在接口中 DataBuffer

  参数:

  readPosition - the new read position

  返回:

  this buffer

• writePosition

  public int writePosition()

  从接口复制的说明: DataBuffer
  Return the position to which this buffer will write.

  指定者:

  writePosition 在接口中 DataBuffer

  返回:

  the write position

• writePosition

  public DefaultDataBuffer writePosition​(int writePosition)

  从接口复制的说明: DataBuffer
  Set the position to which this buffer will write.

  指定者:

  writePosition 在接口中 DataBuffer

  参数:

  writePosition - the new write position

  返回:

  this buffer

• capacity

  public int capacity()

  从接口复制的说明: DataBuffer
  Return the number of bytes that this buffer can contain.

  指定者:

  capacity 在接口中 DataBuffer

  返回:

  the capacity

• capacity

  public DefaultDataBuffer capacity​(int newCapacity)

  从接口复制的说明: DataBuffer
  Set the number of bytes that this buffer can contain.

  If the new capacity is lower than the current capacity, the contents of this buffer will be truncated. If the new capacity is higher than the current capacity, it will be expanded.

  指定者:

  capacity 在接口中 DataBuffer

  参数:

  newCapacity - the new capacity

  返回:

  this buffer

• ensureCapacity

  public DataBuffer ensureCapacity​(int length)

  从接口复制的说明: DataBuffer
  Ensure that the current buffer has enough DataBuffer.writableByteCount() to write the amount of data given as an argument. If not, the missing capacity will be added to the buffer.

  指定者:

  ensureCapacity 在接口中 DataBuffer

  参数:

  length - the writable capacity to check for

  返回:

  this buffer

• getByte

  public byte getByte​(int index)

  从接口复制的说明: DataBuffer
  Read a single byte at the given index from this data buffer.

  指定者:

  getByte 在接口中 DataBuffer

  参数:

  index - the index at which the byte will be read

  返回:

  the byte at the given index

• read

  public byte read()

  从接口复制的说明: DataBuffer
  Read a single byte from the current reading position from this data buffer.

  指定者:

  read 在接口中 DataBuffer

  返回:

  the byte at this buffer's current reading position

• read

  public DefaultDataBuffer read​(byte[] destination)

  从接口复制的说明: DataBuffer
  Read this buffer's data into the specified destination, starting at the current reading position of this buffer.

  指定者:

  read 在接口中 DataBuffer

  参数:

  destination - the array into which the bytes are to be written

  返回:

  this buffer

• read

  public DefaultDataBuffer read​(byte[] destination,
                                int offset,
                                int length)

  从接口复制的说明: DataBuffer
  Read at most length bytes of this buffer into the specified destination, starting at the current reading position of this buffer.

  指定者:

  read 在接口中 DataBuffer

  参数:

  destination - the array into which the bytes are to be written

  offset - the index within destination of the first byte to be written

  length - the maximum number of bytes to be written in destination

  返回:

  this buffer

• write

  public DefaultDataBuffer write​(byte b)

  从接口复制的说明: DataBuffer
  Write a single byte into this buffer at the current writing position.

  指定者:

  write 在接口中 DataBuffer

  参数:

  b - the byte to be written

  返回:

  this buffer

• write

  public DefaultDataBuffer write​(byte[] source)

  从接口复制的说明: DataBuffer
  Write the given source into this buffer, starting at the current writing position of this buffer.

  指定者:

  write 在接口中 DataBuffer

  参数:

  source - the bytes to be written into this buffer

  返回:

  this buffer

• write

  public DefaultDataBuffer write​(byte[] source,
                                 int offset,
                                 int length)

  从接口复制的说明: DataBuffer
  Write at most length bytes of the given source into this buffer, starting at the current writing position of this buffer.

  指定者:

  write 在接口中 DataBuffer

  参数:

  source - the bytes to be written into this buffer

  offset - the index within source to start writing from

  length - the maximum number of bytes to be written from source

  返回:

  this buffer

• write

  public DefaultDataBuffer write​(DataBuffer... buffers)

  从接口复制的说明: DataBuffer
  Write one or more DataBuffers to this buffer, starting at the current writing position. It is the responsibility of the caller to release the given data buffers.

  指定者:

  write 在接口中 DataBuffer

  参数:

  buffers - the byte buffers to write into this buffer

  返回:

  this buffer

• write

  public DefaultDataBuffer write​(ByteBuffer... buffers)

  从接口复制的说明: DataBuffer
  Write one or more ByteBuffer to this buffer, starting at the current writing position.

  指定者:

  write 在接口中 DataBuffer

  参数:

  buffers - the byte buffers to write into this buffer

  返回:

  this buffer

• slice

  public DefaultDataBuffer slice​(int index,
                                 int length)

  从接口复制的说明: DataBuffer
  Create a new DataBuffer whose contents is a shared subsequence of this data buffer's content. Data between this data buffer and the returned buffer is shared; though changes in the returned buffer's position will not be reflected in the reading nor writing position of this data buffer.

  Note that this method will not call DataBufferUtils.retain(DataBuffer) on the resulting slice: the reference count will not be increased.

  指定者:

  slice 在接口中 DataBuffer

  参数:

  index - the index at which to start the slice

  length - the length of the slice

  返回:

  the specified slice of this data buffer

• asByteBuffer

  public ByteBuffer asByteBuffer()

  从接口复制的说明: DataBuffer
  Expose this buffer's bytes as a ByteBuffer. Data between this DataBuffer and the returned ByteBuffer is shared; though changes in the returned buffer's position will not be reflected in the reading nor writing position of this data buffer.

  指定者:

  asByteBuffer 在接口中 DataBuffer

  返回:

  this data buffer as a byte buffer

• asByteBuffer

  public ByteBuffer asByteBuffer​(int index,
                                 int length)

  从接口复制的说明: DataBuffer
  Expose a subsequence of this buffer's bytes as a ByteBuffer. Data between this DataBuffer and the returned ByteBuffer is shared; though changes in the returned buffer's position will not be reflected in the reading nor writing position of this data buffer.

  指定者:

  asByteBuffer 在接口中 DataBuffer

  参数:

  index - the index at which to start the byte buffer

  length - the length of the returned byte buffer

  返回:

  this data buffer as a byte buffer

• asInputStream

  public InputStream asInputStream()

  从接口复制的说明: DataBuffer
  Expose this buffer's data as an InputStream. Both data and read position are shared between the returned stream and this data buffer. The underlying buffer will not be released when the input stream is closed.

  指定者:

  asInputStream 在接口中 DataBuffer

  返回:

  this data buffer as an input stream

  另请参阅:

  DataBuffer.asInputStream(boolean)

• asInputStream

  public InputStream asInputStream​(boolean releaseOnClose)

  从接口复制的说明: DataBuffer
  Expose this buffer's data as an InputStream. Both data and read position are shared between the returned stream and this data buffer.

  指定者:

  asInputStream 在接口中 DataBuffer

  参数:

  releaseOnClose - whether the underlying buffer will be released when the input stream is closed.

  返回:

  this data buffer as an input stream

• asOutputStream

  public OutputStream asOutputStream()

  从接口复制的说明: DataBuffer
  Expose this buffer's data as an OutputStream. Both data and write position are shared between the returned stream and this data buffer.

  指定者:

  asOutputStream 在接口中 DataBuffer

  返回:

  this data buffer as an output stream

• toString

  public String toString​(int index,
                         int length,
                         Charset charset)

  从接口复制的说明: DataBuffer
  Return a part of this buffer's data as a String using the specified charset.

  指定者:

  toString 在接口中 DataBuffer

  参数:

  index - the index at which to start the string

  length - the number of bytes to use for the string

  charset - the charset to use

  返回:

  a string representation of a part of this buffers data

• equals

  public boolean equals​(@Nullable
                        Object other)

  覆盖:

  equals 在类中 Object

• hashCode

  public int hashCode()

  覆盖:

  hashCode 在类中 Object

• toString

  public String toString()

  覆盖:

  toString 在类中 Object