Class UnpooledDirectByteBuf

java.lang.Object
io.netty.buffer.ByteBuf
io.netty.buffer.AbstractByteBuf
io.netty.buffer.AbstractReferenceCountedByteBuf
io.netty.buffer.UnpooledDirectByteBuf
All Implemented Interfaces:
ByteBufConvertible, ReferenceCounted, Comparable<ByteBuf>
Direct Known Subclasses:
UnpooledUnsafeDirectByteBuf
public class UnpooledDirectByteBuf extends AbstractReferenceCountedByteBuf
A NIO ByteBuffer based buffer. It is recommended to use AbstractByteBufAllocator.directBuffer(int, int), Unpooled.directBuffer(int) and Unpooled.wrappedBuffer(ByteBuffer) instead of calling the constructor explicitly.

  • Constructor Summary

    Constructors
    Modifier
    Constructor
    Description
     
    UnpooledDirectByteBuf(ByteBufAllocator alloc, int initialCapacity, int maxCapacity)
    Creates a new direct buffer.
    protected
    UnpooledDirectByteBuf(ByteBufAllocator alloc, ByteBuffer initialBuffer, int maxCapacity)
    Creates a new direct buffer by wrapping the specified initial buffer.

  • Method Summary

    Modifier and Type
    Method
    Description
    protected byte
    _getByte(int index)
     
    protected int
    _getInt(int index)
     
    protected int
    _getIntLE(int index)
     
    protected long
    _getLong(int index)
     
    protected long
    _getLongLE(int index)
     
    protected short
    _getShort(int index)
     
    protected short
    _getShortLE(int index)
     
    protected int
    _getUnsignedMedium(int index)
     
    protected int
    _getUnsignedMediumLE(int index)
     
    protected void
    _setByte(int index, int value)
     
    protected void
    _setInt(int index, int value)
     
    protected void
    _setIntLE(int index, int value)
     
    protected void
    _setLong(int index, long value)
     
    protected void
    _setLongLE(int index, long value)
     
    protected void
    _setMedium(int index, int value)
     
    protected void
    _setMediumLE(int index, int value)
     
    protected void
    _setShort(int index, int value)
     
    protected void
    _setShortLE(int index, int value)
     
    ByteBufAllocator
    alloc()
    Returns the ByteBufAllocator which created this buffer.
    protected ByteBuffer
    allocateDirect(int initialCapacity)
    Allocate a new direct ByteBuffer with the given initialCapacity.
    byte[]
    array()
    Returns the backing byte array of this buffer.
    int
    arrayOffset()
    Returns the offset of the first byte within the backing byte array of this buffer.
    int
    capacity()
    Returns the number of bytes (octets) this buffer can contain.
    ByteBuf
    capacity(int newCapacity)
    Adjusts the capacity of this buffer.
    ByteBuf
    copy(int index, int length)
    Returns a copy of this buffer's sub-region.
    protected void
    deallocate()
    Called once AbstractReferenceCountedByteBuf.refCnt() is equals 0.
    protected void
    freeDirect(ByteBuffer buffer)
    Free a direct ByteBuffer
    byte
    getByte(int index)
    Gets a byte at the specified absolute index in this buffer.
    ByteBuf
    getBytes(int index, byte[] dst, int dstIndex, int length)
    Transfers this buffer's data to the specified destination starting at the specified absolute index.
    ByteBuf
    getBytes(int index, ByteBuf dst, int dstIndex, int length)
    Transfers this buffer's data to the specified destination starting at the specified absolute index.
    ByteBuf
    getBytes(int index, OutputStream out, int length)
    Transfers this buffer's data to the specified stream starting at the specified absolute index.
    ByteBuf
    getBytes(int index, ByteBuffer dst)
    Transfers this buffer's data to the specified destination starting at the specified absolute index until the destination's position reaches its limit.
    int
    getBytes(int index, FileChannel out, long position, int length)
    Transfers this buffer's data starting at the specified absolute index to the specified channel starting at the given file position.
    int
    getBytes(int index, GatheringByteChannel out, int length)
    Transfers this buffer's data to the specified channel starting at the specified absolute index.
    int
    getInt(int index)
    Gets a 32-bit integer at the specified absolute index in this buffer.
    long
    getLong(int index)
    Gets a 64-bit long integer at the specified absolute index in this buffer.
    short
    getShort(int index)
    Gets a 16-bit short integer at the specified absolute index in this buffer.
    int
    getUnsignedMedium(int index)
    Gets an unsigned 24-bit medium integer at the specified absolute index in this buffer.
    boolean
    hasArray()
    Returns true if and only if this buffer has a backing byte array.
    boolean
    hasMemoryAddress()
    Returns true if and only if this buffer has a reference to the low-level memory address that points to the backing data.
    ByteBuffer
    internalNioBuffer(int index, int length)
    Internal use only: Exposes the internal NIO buffer.
    final boolean
    isContiguous()
    Returns true if this ByteBuf implementation is backed by a single memory region.
    boolean
    isDirect()
    Returns true if and only if this buffer is backed by an NIO direct buffer.
    long
    memoryAddress()
    Returns the low-level memory address that point to the first byte of ths backing data.
    ByteBuffer
    nioBuffer(int index, int length)
    Exposes this buffer's sub-region as an NIO ByteBuffer.
    int
    nioBufferCount()
    Returns the maximum number of NIO ByteBuffers that consist this buffer.
    ByteBuffer[]
    nioBuffers(int index, int length)
    Exposes this buffer's bytes as an NIO ByteBuffer's for the specified index and length The returned buffer either share or contains the copied content of this buffer, while changing the position and limit of the returned NIO buffer does not affect the indexes and marks of this buffer.
    ByteOrder
    order()
    Returns the endianness of this buffer.
    ByteBuf
    readBytes(byte[] dst, int dstIndex, int length)
    Transfers this buffer's data to the specified destination starting at the current readerIndex and increases the readerIndex by the number of the transferred bytes (= length).
    ByteBuf
    readBytes(OutputStream out, int length)
    Transfers this buffer's data to the specified stream starting at the current readerIndex.
    ByteBuf
    readBytes(ByteBuffer dst)
    Transfers this buffer's data to the specified destination starting at the current readerIndex until the destination's position reaches its limit, and increases the readerIndex by the number of the transferred bytes.
    int
    readBytes(FileChannel out, long position, int length)
    Transfers this buffer's data starting at the current readerIndex to the specified channel starting at the given file position.
    int
    readBytes(GatheringByteChannel out, int length)
    Transfers this buffer's data to the specified stream starting at the current readerIndex.
    ByteBuf
    setByte(int index, int value)
    Sets the specified byte at the specified absolute index in this buffer.
    ByteBuf
    setBytes(int index, byte[] src, int srcIndex, int length)
    Transfers the specified source array's data to this buffer starting at the specified absolute index.
    ByteBuf
    setBytes(int index, ByteBuf src, int srcIndex, int length)
    Transfers the specified source buffer's data to this buffer starting at the specified absolute index.
    int
    setBytes(int index, InputStream in, int length)
    Transfers the content of the specified source stream to this buffer starting at the specified absolute index.
    ByteBuf
    setBytes(int index, ByteBuffer src)
    Transfers the specified source buffer's data to this buffer starting at the specified absolute index until the source buffer's position reaches its limit.
    int
    setBytes(int index, FileChannel in, long position, int length)
    Transfers the content of the specified source channel starting at the given file position to this buffer starting at the specified absolute index.
    int
    setBytes(int index, ScatteringByteChannel in, int length)
    Transfers the content of the specified source channel to this buffer starting at the specified absolute index.
    ByteBuf
    setInt(int index, int value)
    Sets the specified 32-bit integer at the specified absolute index in this buffer.
    ByteBuf
    setLong(int index, long value)
    Sets the specified 64-bit long integer at the specified absolute index in this buffer.
    ByteBuf
    setMedium(int index, int value)
    Sets the specified 24-bit medium integer at the specified absolute index in this buffer.
    ByteBuf
    setShort(int index, int value)
    Sets the specified 16-bit short integer at the specified absolute index in this buffer.
    ByteBuf
    unwrap()
    Return the underlying buffer instance if this buffer is a wrapper of another buffer.

    Methods inherited from class AbstractReferenceCountedByteBuf

    refCnt, release, release, resetRefCnt, retain, retain, setRefCnt, touch, touch
    Modifier and Type
    Method
    Description
    int
    refCnt()
    Returns the reference count of this object.
    boolean
    release()
    Decreases the reference count by 1 and deallocates this object if the reference count reaches at 0.
    boolean
    release(int decrement)
    Decreases the reference count by the specified decrement and deallocates this object if the reference count reaches at 0.
    protected final void
    resetRefCnt()
    An unsafe operation intended for use by a subclass that resets the reference count of the buffer to 1
    ByteBuf
    retain()
    Increases the reference count by 1.
    ByteBuf
    retain(int increment)
    Increases the reference count by the specified increment.
    protected final void
    setRefCnt(int refCnt)
    An unsafe operation intended for use by a subclass that sets the reference count of the buffer directly
    ByteBuf
    touch()
    Records the current access location of this object for debugging purposes.
    ByteBuf
    touch(Object hint)
    Records the current access location of this object with an additional arbitrary information for debugging purposes.

    Methods inherited from class AbstractByteBuf

    adjustMarkers, asReadOnly, bytesBefore, bytesBefore, bytesBefore, checkDstIndex, checkDstIndex, checkIndex, checkIndex, checkNewCapacity, checkReadableBytes, checkSrcIndex, clear, compareTo, copy, discardReadBytes, discardSomeReadBytes, duplicate, ensureAccessible, ensureWritable, ensureWritable, equals, forEachByte, forEachByte, forEachByteDesc, forEachByteDesc, getBoolean, getBytes, getBytes, getBytes, getChar, getCharSequence, getDouble, getFloat, getIntLE, getLongLE, getMedium, getMediumLE, getShortLE, getUnsignedByte, getUnsignedInt, getUnsignedIntLE, getUnsignedMediumLE, getUnsignedShort, getUnsignedShortLE, hashCode, indexOf, isReadable, isReadable, isReadOnly, isWritable, isWritable, markReaderIndex, markWriterIndex, maxCapacity, maxCapacity, maxWritableBytes, newSwappedByteBuf, nioBuffer, nioBuffers, order, readableBytes, readBoolean, readByte, readBytes, readBytes, readBytes, readBytes, readBytes, readChar, readCharSequence, readDouble, readerIndex, readerIndex, readFloat, readInt, readIntLE, readLong, readLongLE, readMedium, readMediumLE, readRetainedSlice, readShort, readShortLE, readSlice, readUnsignedByte, readUnsignedInt, readUnsignedIntLE, readUnsignedMedium, readUnsignedMediumLE, readUnsignedShort, readUnsignedShortLE, resetReaderIndex, resetWriterIndex, retainedDuplicate, retainedSlice, retainedSlice, setBoolean, setBytes, setBytes, setBytes, setChar, setCharSequence, setDouble, setFloat, setIndex, setIntLE, setLongLE, setMediumLE, setShortLE, setZero, skipBytes, slice, slice, toString, toString, toString, trimIndicesToCapacity, writableBytes, writeBoolean, writeByte, writeBytes, writeBytes, writeBytes, writeBytes, writeBytes, writeBytes, writeBytes, writeBytes, writeBytes, writeChar, writeCharSequence, writeDouble, writeFloat, writeInt, writeIntLE, writeLong, writeLongLE, writeMedium, writeMediumLE, writerIndex, writerIndex, writeShort, writeShortLE, writeZero
    Modifier and Type
    Method
    Description
    protected final void
    adjustMarkers(int decrement)
     
    ByteBuf
    asReadOnly()
    Returns a read-only version of this buffer.
    int
    bytesBefore(byte value)
    Locates the first occurrence of the specified value in this buffer.
    int
    bytesBefore(int length, byte value)
    Locates the first occurrence of the specified value in this buffer.
    int
    bytesBefore(int index, int length, byte value)
    Locates the first occurrence of the specified value in this buffer.
    protected final void
    checkDstIndex(int length, int dstIndex, int dstCapacity)
     
    protected final void
    checkDstIndex(int index, int length, int dstIndex, int dstCapacity)
     
    protected final void
    checkIndex(int index)
     
    protected final void
    checkIndex(int index, int fieldLength)
     
    protected final void
    checkNewCapacity(int newCapacity)
     
    protected final void
    checkReadableBytes(int minimumReadableBytes)
    Throws an IndexOutOfBoundsException if the current readable bytes of this buffer is less than the specified value.
    protected final void
    checkSrcIndex(int index, int length, int srcIndex, int srcCapacity)
     
    ByteBuf
    clear()
    Sets the readerIndex and writerIndex of this buffer to 0.
    int
    compareTo(ByteBuf that)
    Compares the content of the specified buffer to the content of this buffer.
    ByteBuf
    copy()
    Returns a copy of this buffer's readable bytes.
    ByteBuf
    discardReadBytes()
    Discards the bytes between the 0th index and readerIndex.
    ByteBuf
    discardSomeReadBytes()
    Similar to ByteBuf.discardReadBytes() except that this method might discard some, all, or none of read bytes depending on its internal implementation to reduce overall memory bandwidth consumption at the cost of potentially additional memory consumption.
    ByteBuf
    duplicate()
    Returns a buffer which shares the whole region of this buffer.
    protected final void
    ensureAccessible()
    Should be called by every method that tries to access the buffers content to check if the buffer was released before.
    ByteBuf
    ensureWritable(int minWritableBytes)
    Expands the buffer ByteBuf.capacity() to make sure the number of writable bytes is equal to or greater than the specified value.
    int
    ensureWritable(int minWritableBytes, boolean force)
    Expands the buffer ByteBuf.capacity() to make sure the number of writable bytes is equal to or greater than the specified value.
    boolean
    equals(Object o)
    Determines if the content of the specified buffer is identical to the content of this array.
    int
    forEachByte(int index, int length, ByteProcessor processor)
    Iterates over the specified area of this buffer with the specified processor in ascending order.
    int
    forEachByte(ByteProcessor processor)
    Iterates over the readable bytes of this buffer with the specified processor in ascending order.
    int
    forEachByteDesc(int index, int length, ByteProcessor processor)
    Iterates over the specified area of this buffer with the specified processor in descending order.
    int
    forEachByteDesc(ByteProcessor processor)
    Iterates over the readable bytes of this buffer with the specified processor in descending order.
    boolean
    getBoolean(int index)
    Gets a boolean at the specified absolute (@code index) in this buffer.
    ByteBuf
    getBytes(int index, byte[] dst)
    Transfers this buffer's data to the specified destination starting at the specified absolute index.
    ByteBuf
    getBytes(int index, ByteBuf dst)
    Transfers this buffer's data to the specified destination starting at the specified absolute index until the destination becomes non-writable.
    ByteBuf
    getBytes(int index, ByteBuf dst, int length)
    Transfers this buffer's data to the specified destination starting at the specified absolute index.
    char
    getChar(int index)
    Gets a 2-byte UTF-16 character at the specified absolute index in this buffer.
    CharSequence
    getCharSequence(int index, int length, Charset charset)
    Gets a CharSequence with the given length at the given index.
    double
    getDouble(int index)
    Gets a 64-bit floating point number at the specified absolute index in this buffer.
    float
    getFloat(int index)
    Gets a 32-bit floating point number at the specified absolute index in this buffer.
    int
    getIntLE(int index)
    Gets a 32-bit integer at the specified absolute index in this buffer with Little Endian Byte Order.
    long
    getLongLE(int index)
    Gets a 64-bit long integer at the specified absolute index in this buffer in Little Endian Byte Order.
    int
    getMedium(int index)
    Gets a 24-bit medium integer at the specified absolute index in this buffer.
    int
    getMediumLE(int index)
    Gets a 24-bit medium integer at the specified absolute index in this buffer in the Little Endian Byte Order.
    short
    getShortLE(int index)
    Gets a 16-bit short integer at the specified absolute index in this buffer in Little Endian Byte Order.
    short
    getUnsignedByte(int index)
    Gets an unsigned byte at the specified absolute index in this buffer.
    long
    getUnsignedInt(int index)
    Gets an unsigned 32-bit integer at the specified absolute index in this buffer.
    long
    getUnsignedIntLE(int index)
    Gets an unsigned 32-bit integer at the specified absolute index in this buffer in Little Endian Byte Order.
    int
    getUnsignedMediumLE(int index)
    Gets an unsigned 24-bit medium integer at the specified absolute index in this buffer in Little Endian Byte Order.
    int
    getUnsignedShort(int index)
    Gets an unsigned 16-bit short integer at the specified absolute index in this buffer.
    int
    getUnsignedShortLE(int index)
    Gets an unsigned 16-bit short integer at the specified absolute index in this buffer in Little Endian Byte Order.
    int
    hashCode()
    Returns a hash code which was calculated from the content of this buffer.
    int
    indexOf(int fromIndex, int toIndex, byte value)
    Locates the first occurrence of the specified value in this buffer.
    boolean
    isReadable()
    Returns true if and only if (this.writerIndex - this.readerIndex) is greater than 0.
    boolean
    isReadable(int numBytes)
    Returns true if and only if this buffer contains equal to or more than the specified number of elements.
    boolean
    isReadOnly()
    Returns true if and only if this buffer is read-only.
    boolean
    isWritable()
    Returns true if and only if (this.capacity - this.writerIndex) is greater than 0.
    boolean
    isWritable(int numBytes)
    Returns true if and only if this buffer has enough room to allow writing the specified number of elements.
    ByteBuf
    markReaderIndex()
    Marks the current readerIndex in this buffer.
    ByteBuf
    markWriterIndex()
    Marks the current writerIndex in this buffer.
    int
    maxCapacity()
    Returns the maximum allowed capacity of this buffer.
    protected final void
    maxCapacity(int maxCapacity)
     
    int
    maxWritableBytes()
    Returns the maximum possible number of writable bytes, which is equal to (this.maxCapacity - this.writerIndex).
    protected SwappedByteBuf
    newSwappedByteBuf()
    Creates a new SwappedByteBuf for this ByteBuf instance.
    ByteBuffer
    nioBuffer()
    Exposes this buffer's readable bytes as an NIO ByteBuffer.
    ByteBuffer[]
    nioBuffers()
    Exposes this buffer's readable bytes as an NIO ByteBuffer's.
    ByteBuf
    order(ByteOrder endianness)
    Returns a buffer with the specified endianness which shares the whole region, indexes, and marks of this buffer.
    int
    readableBytes()
    Returns the number of readable bytes which is equal to (this.writerIndex - this.readerIndex).
    boolean
    readBoolean()
    Gets a boolean at the current readerIndex and increases the readerIndex by 1 in this buffer.
    byte
    readByte()
    Gets a byte at the current readerIndex and increases the readerIndex by 1 in this buffer.
    ByteBuf
    readBytes(byte[] dst)
    Transfers this buffer's data to the specified destination starting at the current readerIndex and increases the readerIndex by the number of the transferred bytes (= dst.length).
    ByteBuf
    readBytes(int length)
    Transfers this buffer's data to a newly created buffer starting at the current readerIndex and increases the readerIndex by the number of the transferred bytes (= length).
    ByteBuf
    readBytes(ByteBuf dst)
    Transfers this buffer's data to the specified destination starting at the current readerIndex until the destination becomes non-writable, and increases the readerIndex by the number of the transferred bytes.
    ByteBuf
    readBytes(ByteBuf dst, int length)
    Transfers this buffer's data to the specified destination starting at the current readerIndex and increases the readerIndex by the number of the transferred bytes (= length).
    ByteBuf
    readBytes(ByteBuf dst, int dstIndex, int length)
    Transfers this buffer's data to the specified destination starting at the current readerIndex and increases the readerIndex by the number of the transferred bytes (= length).
    char
    readChar()
    Gets a 2-byte UTF-16 character at the current readerIndex and increases the readerIndex by 2 in this buffer.
    CharSequence
    readCharSequence(int length, Charset charset)
    Gets a CharSequence with the given length at the current readerIndex and increases the readerIndex by the given length.
    double
    readDouble()
    Gets a 64-bit floating point number at the current readerIndex and increases the readerIndex by 8 in this buffer.
    int
    readerIndex()
    Returns the readerIndex of this buffer.
    ByteBuf
    readerIndex(int readerIndex)
    Sets the readerIndex of this buffer.
    float
    readFloat()
    Gets a 32-bit floating point number at the current readerIndex and increases the readerIndex by 4 in this buffer.
    int
    readInt()
    Gets a 32-bit integer at the current readerIndex and increases the readerIndex by 4 in this buffer.
    int
    readIntLE()
    Gets a 32-bit integer at the current readerIndex in the Little Endian Byte Order and increases the readerIndex by 4 in this buffer.
    long
    readLong()
    Gets a 64-bit integer at the current readerIndex and increases the readerIndex by 8 in this buffer.
    long
    readLongLE()
    Gets a 64-bit integer at the current readerIndex in the Little Endian Byte Order and increases the readerIndex by 8 in this buffer.
    int
    readMedium()
    Gets a 24-bit medium integer at the current readerIndex and increases the readerIndex by 3 in this buffer.
    int
    readMediumLE()
    Gets a 24-bit medium integer at the current readerIndex in the Little Endian Byte Order and increases the readerIndex by 3 in this buffer.
    ByteBuf
    readRetainedSlice(int length)
    Returns a new retained slice of this buffer's sub-region starting at the current readerIndex and increases the readerIndex by the size of the new slice (= length).
    short
    readShort()
    Gets a 16-bit short integer at the current readerIndex and increases the readerIndex by 2 in this buffer.
    short
    readShortLE()
    Gets a 16-bit short integer at the current readerIndex in the Little Endian Byte Order and increases the readerIndex by 2 in this buffer.
    ByteBuf
    readSlice(int length)
    Returns a new slice of this buffer's sub-region starting at the current readerIndex and increases the readerIndex by the size of the new slice (= length).
    short
    readUnsignedByte()
    Gets an unsigned byte at the current readerIndex and increases the readerIndex by 1 in this buffer.
    long
    readUnsignedInt()
    Gets an unsigned 32-bit integer at the current readerIndex and increases the readerIndex by 4 in this buffer.
    long
    readUnsignedIntLE()
    Gets an unsigned 32-bit integer at the current readerIndex in the Little Endian Byte Order and increases the readerIndex by 4 in this buffer.
    int
    readUnsignedMedium()
    Gets an unsigned 24-bit medium integer at the current readerIndex and increases the readerIndex by 3 in this buffer.
    int
    readUnsignedMediumLE()
    Gets an unsigned 24-bit medium integer at the current readerIndex in the Little Endian Byte Order and increases the readerIndex by 3 in this buffer.
    int
    readUnsignedShort()
    Gets an unsigned 16-bit short integer at the current readerIndex and increases the readerIndex by 2 in this buffer.
    int
    readUnsignedShortLE()
    Gets an unsigned 16-bit short integer at the current readerIndex in the Little Endian Byte Order and increases the readerIndex by 2 in this buffer.
    ByteBuf
    resetReaderIndex()
    Repositions the current readerIndex to the marked readerIndex in this buffer.
    ByteBuf
    resetWriterIndex()
    Repositions the current writerIndex to the marked writerIndex in this buffer.
    ByteBuf
    retainedDuplicate()
    Returns a retained buffer which shares the whole region of this buffer.
    ByteBuf
    retainedSlice()
    Returns a retained slice of this buffer's readable bytes.
    ByteBuf
    retainedSlice(int index, int length)
    Returns a retained slice of this buffer's sub-region.
    ByteBuf
    setBoolean(int index, boolean value)
    Sets the specified boolean at the specified absolute index in this buffer.
    ByteBuf
    setBytes(int index, byte[] src)
    Transfers the specified source array's data to this buffer starting at the specified absolute index.
    ByteBuf
    setBytes(int index, ByteBuf src)
    Transfers the specified source buffer's data to this buffer starting at the specified absolute index until the source buffer becomes unreadable.
    ByteBuf
    setBytes(int index, ByteBuf src, int length)
    Transfers the specified source buffer's data to this buffer starting at the specified absolute index.
    ByteBuf
    setChar(int index, int value)
    Sets the specified 2-byte UTF-16 character at the specified absolute index in this buffer.
    int
    setCharSequence(int index, CharSequence sequence, Charset charset)
    Writes the specified CharSequence at the given index.
    ByteBuf
    setDouble(int index, double value)
    Sets the specified 64-bit floating-point number at the specified absolute index in this buffer.
    ByteBuf
    setFloat(int index, float value)
    Sets the specified 32-bit floating-point number at the specified absolute index in this buffer.
    ByteBuf
    setIndex(int readerIndex, int writerIndex)
    Sets the readerIndex and writerIndex of this buffer in one shot.
    ByteBuf
    setIntLE(int index, int value)
    Sets the specified 32-bit integer at the specified absolute index in this buffer with Little Endian byte order .
    ByteBuf
    setLongLE(int index, long value)
    Sets the specified 64-bit long integer at the specified absolute index in this buffer in Little Endian Byte Order.
    ByteBuf
    setMediumLE(int index, int value)
    Sets the specified 24-bit medium integer at the specified absolute index in this buffer in the Little Endian Byte Order.
    ByteBuf
    setShortLE(int index, int value)
    Sets the specified 16-bit short integer at the specified absolute index in this buffer with the Little Endian Byte Order.
    ByteBuf
    setZero(int index, int length)
    Fills this buffer with NUL (0x00) starting at the specified absolute index.
    ByteBuf
    skipBytes(int length)
    Increases the current readerIndex by the specified length in this buffer.
    ByteBuf
    slice()
    Returns a slice of this buffer's readable bytes.
    ByteBuf
    slice(int index, int length)
    Returns a slice of this buffer's sub-region.
    String
    toString()
    Returns the string representation of this buffer.
    String
    toString(int index, int length, Charset charset)
    Decodes this buffer's sub-region into a string with the specified character set.
    String
    toString(Charset charset)
    Decodes this buffer's readable bytes into a string with the specified character set name.
    protected final void
    trimIndicesToCapacity(int newCapacity)
     
    int
    writableBytes()
    Returns the number of writable bytes which is equal to (this.capacity - this.writerIndex).
    ByteBuf
    writeBoolean(boolean value)
    Sets the specified boolean at the current writerIndex and increases the writerIndex by 1 in this buffer.
    ByteBuf
    writeByte(int value)
    Sets the specified byte at the current writerIndex and increases the writerIndex by 1 in this buffer.
    ByteBuf
    writeBytes(byte[] src)
    Transfers the specified source array's data to this buffer starting at the current writerIndex and increases the writerIndex by the number of the transferred bytes (= src.length).
    ByteBuf
    writeBytes(byte[] src, int srcIndex, int length)
    Transfers the specified source array's data to this buffer starting at the current writerIndex and increases the writerIndex by the number of the transferred bytes (= length).
    ByteBuf
    writeBytes(ByteBuf src)
    Transfers the specified source buffer's data to this buffer starting at the current writerIndex until the source buffer becomes unreadable, and increases the writerIndex by the number of the transferred bytes.
    ByteBuf
    writeBytes(ByteBuf src, int length)
    Transfers the specified source buffer's data to this buffer starting at the current writerIndex and increases the writerIndex by the number of the transferred bytes (= length).
    ByteBuf
    writeBytes(ByteBuf src, int srcIndex, int length)
    Transfers the specified source buffer's data to this buffer starting at the current writerIndex and increases the writerIndex by the number of the transferred bytes (= length).
    int
    writeBytes(InputStream in, int length)
    Transfers the content of the specified stream to this buffer starting at the current writerIndex and increases the writerIndex by the number of the transferred bytes.
    ByteBuf
    writeBytes(ByteBuffer src)
    Transfers the specified source buffer's data to this buffer starting at the current writerIndex until the source buffer's position reaches its limit, and increases the writerIndex by the number of the transferred bytes.
    int
    writeBytes(FileChannel in, long position, int length)
    Transfers the content of the specified channel starting at the given file position to this buffer starting at the current writerIndex and increases the writerIndex by the number of the transferred bytes.
    int
    writeBytes(ScatteringByteChannel in, int length)
    Transfers the content of the specified channel to this buffer starting at the current writerIndex and increases the writerIndex by the number of the transferred bytes.
    ByteBuf
    writeChar(int value)
    Sets the specified 2-byte UTF-16 character at the current writerIndex and increases the writerIndex by 2 in this buffer.
    int
    writeCharSequence(CharSequence sequence, Charset charset)
    Writes the specified CharSequence at the current writerIndex and increases the writerIndex by the written bytes. in this buffer.
    ByteBuf
    writeDouble(double value)
    Sets the specified 64-bit floating point number at the current writerIndex and increases the writerIndex by 8 in this buffer.
    ByteBuf
    writeFloat(float value)
    Sets the specified 32-bit floating point number at the current writerIndex and increases the writerIndex by 4 in this buffer.
    ByteBuf
    writeInt(int value)
    Sets the specified 32-bit integer at the current writerIndex and increases the writerIndex by 4 in this buffer.
    ByteBuf
    writeIntLE(int value)
    Sets the specified 32-bit integer at the current writerIndex in the Little Endian Byte Order and increases the writerIndex by 4 in this buffer.
    ByteBuf
    writeLong(long value)
    Sets the specified 64-bit long integer at the current writerIndex and increases the writerIndex by 8 in this buffer.
    ByteBuf
    writeLongLE(long value)
    Sets the specified 64-bit long integer at the current writerIndex in the Little Endian Byte Order and increases the writerIndex by 8 in this buffer.
    ByteBuf
    writeMedium(int value)
    Sets the specified 24-bit medium integer at the current writerIndex and increases the writerIndex by 3 in this buffer.
    ByteBuf
    writeMediumLE(int value)
    Sets the specified 24-bit medium integer at the current writerIndex in the Little Endian Byte Order and increases the writerIndex by 3 in this buffer.
    int
    writerIndex()
    Returns the writerIndex of this buffer.
    ByteBuf
    writerIndex(int writerIndex)
    Sets the writerIndex of this buffer.
    ByteBuf
    writeShort(int value)
    Sets the specified 16-bit short integer at the current writerIndex and increases the writerIndex by 2 in this buffer.
    ByteBuf
    writeShortLE(int value)
    Sets the specified 16-bit short integer in the Little Endian Byte Order at the current writerIndex and increases the writerIndex by 2 in this buffer.
    ByteBuf
    writeZero(int length)
    Fills this buffer with NUL (0x00) starting at the current writerIndex and increases the writerIndex by the specified length.

    Methods inherited from class ByteBuf

    asByteBuf, getDoubleLE, getFloatLE, maxFastWritableBytes, readDoubleLE, readFloatLE, setDoubleLE, setFloatLE, writeDoubleLE, writeFloatLE
    Modifier and Type
    Method
    Description
    ByteBuf
    asByteBuf()
    A ByteBuf can turn into itself.
    double
    getDoubleLE(int index)
    Gets a 64-bit floating point number at the specified absolute index in this buffer in Little Endian Byte Order.
    float
    getFloatLE(int index)
    Gets a 32-bit floating point number at the specified absolute index in this buffer in Little Endian Byte Order.
    int
    maxFastWritableBytes()
    Returns the maximum number of bytes which can be written for certain without involving an internal reallocation or data-copy.
    double
    readDoubleLE()
    Gets a 64-bit floating point number at the current readerIndex in Little Endian Byte Order and increases the readerIndex by 8 in this buffer.
    float
    readFloatLE()
    Gets a 32-bit floating point number at the current readerIndex in Little Endian Byte Order and increases the readerIndex by 4 in this buffer.
    ByteBuf
    setDoubleLE(int index, double value)
    Sets the specified 64-bit floating-point number at the specified absolute index in this buffer in Little Endian Byte Order.
    ByteBuf
    setFloatLE(int index, float value)
    Sets the specified 32-bit floating-point number at the specified absolute index in this buffer in Little Endian Byte Order.
    ByteBuf
    writeDoubleLE(double value)
    Sets the specified 64-bit floating point number at the current writerIndex in Little Endian Byte Order and increases the writerIndex by 8 in this buffer.
    ByteBuf
    writeFloatLE(float value)
    Sets the specified 32-bit floating point number at the current writerIndex in Little Endian Byte Order and increases the writerIndex by 4 in this buffer.

    Methods inherited from class Object

    clone, finalize, getClass, notify, notifyAll, wait, wait, wait

  • Constructor Details

    • UnpooledDirectByteBuf

      public UnpooledDirectByteBuf(ByteBufAllocator alloc, int initialCapacity, int maxCapacity)
      Creates a new direct buffer.
      Parameters:
      initialCapacity - the initial capacity of the underlying direct buffer
      maxCapacity - the maximum capacity of the underlying direct buffer

    • UnpooledDirectByteBuf

      protected UnpooledDirectByteBuf(ByteBufAllocator alloc, ByteBuffer initialBuffer, int maxCapacity)
      Creates a new direct buffer by wrapping the specified initial buffer.
      Parameters:
      maxCapacity - the maximum capacity of the underlying direct buffer

  • Method Details

    • allocateDirect

      protected ByteBuffer allocateDirect(int initialCapacity)
      Allocate a new direct ByteBuffer with the given initialCapacity.

    • freeDirect

      protected void freeDirect(ByteBuffer buffer)
      Free a direct ByteBuffer

    • isDirect

      public boolean isDirect()
      Description copied from class: ByteBuf
      Returns true if and only if this buffer is backed by an NIO direct buffer.
      Specified by:
      isDirect in class ByteBuf

    • capacity

      public int capacity()
      Description copied from class: ByteBuf
      Returns the number of bytes (octets) this buffer can contain.
      Specified by:
      capacity in class ByteBuf

    • capacity

      public ByteBuf capacity(int newCapacity)
      Description copied from class: ByteBuf
      Adjusts the capacity of this buffer. If the newCapacity is less than the current capacity, the content of this buffer is truncated. If the newCapacity is greater than the current capacity, the buffer is appended with unspecified data whose length is (newCapacity - currentCapacity).
      Specified by:
      capacity in class ByteBuf

    • alloc

      public ByteBufAllocator alloc()
      Description copied from class: ByteBuf
      Returns the ByteBufAllocator which created this buffer.
      Specified by:
      alloc in class ByteBuf

    • order

      public ByteOrder order()
      Description copied from class: ByteBuf
      Returns the endianness of this buffer.
      Specified by:
      order in class ByteBuf

    • hasArray

      public boolean hasArray()
      Description copied from class: ByteBuf
      Returns true if and only if this buffer has a backing byte array. If this method returns true, you can safely call ByteBuf.array() and ByteBuf.arrayOffset().
      Specified by:
      hasArray in class ByteBuf

    • array

      public byte[] array()
      Description copied from class: ByteBuf
      Returns the backing byte array of this buffer.
      Specified by:
      array in class ByteBuf

    • arrayOffset

      public int arrayOffset()
      Description copied from class: ByteBuf
      Returns the offset of the first byte within the backing byte array of this buffer.
      Specified by:
      arrayOffset in class ByteBuf

    • hasMemoryAddress

      public boolean hasMemoryAddress()
      Description copied from class: ByteBuf
      Returns true if and only if this buffer has a reference to the low-level memory address that points to the backing data.
      Specified by:
      hasMemoryAddress in class ByteBuf

    • memoryAddress

      public long memoryAddress()
      Description copied from class: ByteBuf
      Returns the low-level memory address that point to the first byte of ths backing data.
      Specified by:
      memoryAddress in class ByteBuf

    • getByte

      public byte getByte(int index)
      Description copied from class: ByteBuf
      Gets a byte at the specified absolute index in this buffer. This method does not modify readerIndex or writerIndex of this buffer.
      Overrides:
      getByte in class AbstractByteBuf

    • _getByte

      protected byte _getByte(int index)
      Specified by:
      _getByte in class AbstractByteBuf

    • getShort

      public short getShort(int index)
      Description copied from class: ByteBuf
      Gets a 16-bit short integer at the specified absolute index in this buffer. This method does not modify readerIndex or writerIndex of this buffer.
      Overrides:
      getShort in class AbstractByteBuf

    • _getShort

      protected short _getShort(int index)
      Specified by:
      _getShort in class AbstractByteBuf

    • _getShortLE

      protected short _getShortLE(int index)
      Specified by:
      _getShortLE in class AbstractByteBuf

    • getUnsignedMedium

      public int getUnsignedMedium(int index)
      Description copied from class: ByteBuf
      Gets an unsigned 24-bit medium integer at the specified absolute index in this buffer. This method does not modify readerIndex or writerIndex of this buffer.
      Overrides:
      getUnsignedMedium in class AbstractByteBuf

    • _getUnsignedMedium

      protected int _getUnsignedMedium(int index)
      Specified by:
      _getUnsignedMedium in class AbstractByteBuf

    • _getUnsignedMediumLE

      protected int _getUnsignedMediumLE(int index)
      Specified by:
      _getUnsignedMediumLE in class AbstractByteBuf

    • getInt

      public int getInt(int index)
      Description copied from class: ByteBuf
      Gets a 32-bit integer at the specified absolute index in this buffer. This method does not modify readerIndex or writerIndex of this buffer.
      Overrides:
      getInt in class AbstractByteBuf

    • _getInt

      protected int _getInt(int index)
      Specified by:
      _getInt in class AbstractByteBuf

    • _getIntLE

      protected int _getIntLE(int index)
      Specified by:
      _getIntLE in class AbstractByteBuf

    • getLong

      public long getLong(int index)
      Description copied from class: ByteBuf
      Gets a 64-bit long integer at the specified absolute index in this buffer. This method does not modify readerIndex or writerIndex of this buffer.
      Overrides:
      getLong in class AbstractByteBuf

    • _getLong

      protected long _getLong(int index)
      Specified by:
      _getLong in class AbstractByteBuf

    • _getLongLE

      protected long _getLongLE(int index)
      Specified by:
      _getLongLE in class AbstractByteBuf

    • getBytes

      public ByteBuf getBytes(int index, ByteBuf dst, int dstIndex, int length)
      Description copied from class: ByteBuf
      Transfers this buffer's data to the specified destination starting at the specified absolute index. This method does not modify readerIndex or writerIndex of both the source (i.e. this) and the destination.
      Specified by:
      getBytes in class ByteBuf
      Parameters:
      dstIndex - the first index of the destination
      length - the number of bytes to transfer

    • getBytes

      public ByteBuf getBytes(int index, byte[] dst, int dstIndex, int length)
      Description copied from class: ByteBuf
      Transfers this buffer's data to the specified destination starting at the specified absolute index. This method does not modify readerIndex or writerIndex of this buffer.
      Specified by:
      getBytes in class ByteBuf
      Parameters:
      dstIndex - the first index of the destination
      length - the number of bytes to transfer

    • readBytes

      public ByteBuf readBytes(byte[] dst, int dstIndex, int length)
      Description copied from class: ByteBuf
      Transfers this buffer's data to the specified destination starting at the current readerIndex and increases the readerIndex by the number of the transferred bytes (= length).
      Overrides:
      readBytes in class AbstractByteBuf
      Parameters:
      dstIndex - the first index of the destination
      length - the number of bytes to transfer

    • getBytes

      public ByteBuf getBytes(int index, ByteBuffer dst)
      Description copied from class: ByteBuf
      Transfers this buffer's data to the specified destination starting at the specified absolute index until the destination's position reaches its limit. This method does not modify readerIndex or writerIndex of this buffer while the destination's position will be increased.
      Specified by:
      getBytes in class ByteBuf

    • readBytes

      public ByteBuf readBytes(ByteBuffer dst)
      Description copied from class: ByteBuf
      Transfers this buffer's data to the specified destination starting at the current readerIndex until the destination's position reaches its limit, and increases the readerIndex by the number of the transferred bytes.
      Overrides:
      readBytes in class AbstractByteBuf

    • setByte

      public ByteBuf setByte(int index, int value)
      Description copied from class: ByteBuf
      Sets the specified byte at the specified absolute index in this buffer. The 24 high-order bits of the specified value are ignored. This method does not modify readerIndex or writerIndex of this buffer.
      Overrides:
      setByte in class AbstractByteBuf

    • _setByte

      protected void _setByte(int index, int value)
      Specified by:
      _setByte in class AbstractByteBuf

    • setShort

      public ByteBuf setShort(int index, int value)
      Description copied from class: ByteBuf
      Sets the specified 16-bit short integer at the specified absolute index in this buffer. The 16 high-order bits of the specified value are ignored. This method does not modify readerIndex or writerIndex of this buffer.
      Overrides:
      setShort in class AbstractByteBuf

    • _setShort

      protected void _setShort(int index, int value)
      Specified by:
      _setShort in class AbstractByteBuf

    • _setShortLE

      protected void _setShortLE(int index, int value)
      Specified by:
      _setShortLE in class AbstractByteBuf

    • setMedium

      public ByteBuf setMedium(int index, int value)
      Description copied from class: ByteBuf
      Sets the specified 24-bit medium integer at the specified absolute index in this buffer. Please note that the most significant byte is ignored in the specified value. This method does not modify readerIndex or writerIndex of this buffer.
      Overrides:
      setMedium in class AbstractByteBuf

    • _setMedium

      protected void _setMedium(int index, int value)
      Specified by:
      _setMedium in class AbstractByteBuf

    • _setMediumLE

      protected void _setMediumLE(int index, int value)
      Specified by:
      _setMediumLE in class AbstractByteBuf

    • setInt

      public ByteBuf setInt(int index, int value)
      Description copied from class: ByteBuf
      Sets the specified 32-bit integer at the specified absolute index in this buffer. This method does not modify readerIndex or writerIndex of this buffer.
      Overrides:
      setInt in class AbstractByteBuf

    • _setInt

      protected void _setInt(int index, int value)
      Specified by:
      _setInt in class AbstractByteBuf

    • _setIntLE

      protected void _setIntLE(int index, int value)
      Specified by:
      _setIntLE in class AbstractByteBuf

    • setLong

      public ByteBuf setLong(int index, long value)
      Description copied from class: ByteBuf
      Sets the specified 64-bit long integer at the specified absolute index in this buffer. This method does not modify readerIndex or writerIndex of this buffer.
      Overrides:
      setLong in class AbstractByteBuf

    • _setLong

      protected void _setLong(int index, long value)
      Specified by:
      _setLong in class AbstractByteBuf

    • _setLongLE

      protected void _setLongLE(int index, long value)
      Specified by:
      _setLongLE in class AbstractByteBuf

    • setBytes

      public ByteBuf setBytes(int index, ByteBuf src, int srcIndex, int length)
      Description copied from class: ByteBuf
      Transfers the specified source buffer's data to this buffer starting at the specified absolute index. This method does not modify readerIndex or writerIndex of both the source (i.e. this) and the destination.
      Specified by:
      setBytes in class ByteBuf
      Parameters:
      srcIndex - the first index of the source
      length - the number of bytes to transfer

    • setBytes

      public ByteBuf setBytes(int index, byte[] src, int srcIndex, int length)
      Description copied from class: ByteBuf
      Transfers the specified source array's data to this buffer starting at the specified absolute index. This method does not modify readerIndex or writerIndex of this buffer.
      Specified by:
      setBytes in class ByteBuf

    • setBytes

      public ByteBuf setBytes(int index, ByteBuffer src)
      Description copied from class: ByteBuf
      Transfers the specified source buffer's data to this buffer starting at the specified absolute index until the source buffer's position reaches its limit. This method does not modify readerIndex or writerIndex of this buffer.
      Specified by:
      setBytes in class ByteBuf

    • getBytes

      public ByteBuf getBytes(int index, OutputStream out, int length) throws IOException
      Description copied from class: ByteBuf
      Transfers this buffer's data to the specified stream starting at the specified absolute index. This method does not modify readerIndex or writerIndex of this buffer.
      Specified by:
      getBytes in class ByteBuf
      Parameters:
      length - the number of bytes to transfer
      Throws:
      IOException - if the specified stream threw an exception during I/O

    • readBytes

      public ByteBuf readBytes(OutputStream out, int length) throws IOException
      Description copied from class: ByteBuf
      Transfers this buffer's data to the specified stream starting at the current readerIndex.
      Overrides:
      readBytes in class AbstractByteBuf
      Parameters:
      length - the number of bytes to transfer
      Throws:
      IOException - if the specified stream threw an exception during I/O

    • getBytes

      public int getBytes(int index, GatheringByteChannel out, int length) throws IOException
      Description copied from class: ByteBuf
      Transfers this buffer's data to the specified channel starting at the specified absolute index. This method does not modify readerIndex or writerIndex of this buffer.
      Specified by:
      getBytes in class ByteBuf
      Parameters:
      length - the maximum number of bytes to transfer
      Returns:
      the actual number of bytes written out to the specified channel
      Throws:
      IOException - if the specified channel threw an exception during I/O

    • getBytes

      public int getBytes(int index, FileChannel out, long position, int length) throws IOException
      Description copied from class: ByteBuf
      Transfers this buffer's data starting at the specified absolute index to the specified channel starting at the given file position. This method does not modify readerIndex or writerIndex of this buffer. This method does not modify the channel's position.
      Specified by:
      getBytes in class ByteBuf
      Parameters:
      position - the file position at which the transfer is to begin
      length - the maximum number of bytes to transfer
      Returns:
      the actual number of bytes written out to the specified channel
      Throws:
      IOException - if the specified channel threw an exception during I/O

    • readBytes

      public int readBytes(GatheringByteChannel out, int length) throws IOException
      Description copied from class: ByteBuf
      Transfers this buffer's data to the specified stream starting at the current readerIndex.
      Overrides:
      readBytes in class AbstractByteBuf
      Parameters:
      length - the maximum number of bytes to transfer
      Returns:
      the actual number of bytes written out to the specified channel
      Throws:
      IOException - if the specified channel threw an exception during I/O

    • readBytes

      public int readBytes(FileChannel out, long position, int length) throws IOException
      Description copied from class: ByteBuf
      Transfers this buffer's data starting at the current readerIndex to the specified channel starting at the given file position. This method does not modify the channel's position.
      Overrides:
      readBytes in class AbstractByteBuf
      Parameters:
      position - the file position at which the transfer is to begin
      length - the maximum number of bytes to transfer
      Returns:
      the actual number of bytes written out to the specified channel
      Throws:
      IOException - if the specified channel threw an exception during I/O

    • setBytes

      public int setBytes(int index, InputStream in, int length) throws IOException
      Description copied from class: ByteBuf
      Transfers the content of the specified source stream to this buffer starting at the specified absolute index. This method does not modify readerIndex or writerIndex of this buffer.
      Specified by:
      setBytes in class ByteBuf
      Parameters:
      length - the number of bytes to transfer
      Returns:
      the actual number of bytes read in from the specified channel. -1 if the specified InputStream reached EOF.
      Throws:
      IOException - if the specified stream threw an exception during I/O

    • setBytes

      public int setBytes(int index, ScatteringByteChannel in, int length) throws IOException
      Description copied from class: ByteBuf
      Transfers the content of the specified source channel to this buffer starting at the specified absolute index. This method does not modify readerIndex or writerIndex of this buffer.
      Specified by:
      setBytes in class ByteBuf
      Parameters:
      length - the maximum number of bytes to transfer
      Returns:
      the actual number of bytes read in from the specified channel. -1 if the specified channel is closed or it reached EOF.
      Throws:
      IOException - if the specified channel threw an exception during I/O

    • setBytes

      public int setBytes(int index, FileChannel in, long position, int length) throws IOException
      Description copied from class: ByteBuf
      Transfers the content of the specified source channel starting at the given file position to this buffer starting at the specified absolute index. This method does not modify readerIndex or writerIndex of this buffer. This method does not modify the channel's position.
      Specified by:
      setBytes in class ByteBuf
      Parameters:
      position - the file position at which the transfer is to begin
      length - the maximum number of bytes to transfer
      Returns:
      the actual number of bytes read in from the specified channel. -1 if the specified channel is closed or it reached EOF.
      Throws:
      IOException - if the specified channel threw an exception during I/O

    • nioBufferCount

      public int nioBufferCount()
      Description copied from class: ByteBuf
      Returns the maximum number of NIO ByteBuffers that consist this buffer. Note that ByteBuf.nioBuffers() or ByteBuf.nioBuffers(int, int) might return a less number of ByteBuffers.
      Specified by:
      nioBufferCount in class ByteBuf
      Returns:
      -1 if this buffer has no underlying ByteBuffer. the number of the underlying ByteBuffers if this buffer has at least one underlying ByteBuffer. Note that this method does not return 0 to avoid confusion.
      See Also:

    • nioBuffers

      public ByteBuffer[] nioBuffers(int index, int length)
      Description copied from class: ByteBuf
      Exposes this buffer's bytes as an NIO ByteBuffer's for the specified index and length The returned buffer either share or contains the copied content of this buffer, while changing the position and limit of the returned NIO buffer does not affect the indexes and marks of this buffer. This method does not modify readerIndex or writerIndex of this buffer. Please note that the returned NIO buffer will not see the changes of this buffer if this buffer is a dynamic buffer and it adjusted its capacity.
      Specified by:
      nioBuffers in class ByteBuf
      See Also:

    • isContiguous

      public final boolean isContiguous()
      Description copied from class: ByteBuf
      Returns true if this ByteBuf implementation is backed by a single memory region. Composite buffer implementations must return false even if they currently hold ≤ 1 components. For buffers that return true, it's guaranteed that a successful call to ByteBuf.discardReadBytes() will increase the value of ByteBuf.maxFastWritableBytes() by the current readerIndex.

      This method will return false by default, and a false return value does not necessarily mean that the implementation is composite or that it is not backed by a single memory region.

      Overrides:
      isContiguous in class ByteBuf

    • copy

      public ByteBuf copy(int index, int length)
      Description copied from class: ByteBuf
      Returns a copy of this buffer's sub-region. Modifying the content of the returned buffer or this buffer does not affect each other at all. This method does not modify readerIndex or writerIndex of this buffer.
      Specified by:
      copy in class ByteBuf

    • internalNioBuffer

      public ByteBuffer internalNioBuffer(int index, int length)
      Description copied from class: ByteBuf
      Internal use only: Exposes the internal NIO buffer.
      Specified by:
      internalNioBuffer in class ByteBuf

    • nioBuffer

      public ByteBuffer nioBuffer(int index, int length)
      Description copied from class: ByteBuf
      Exposes this buffer's sub-region as an NIO ByteBuffer. The returned buffer either share or contains the copied content of this buffer, while changing the position and limit of the returned NIO buffer does not affect the indexes and marks of this buffer. This method does not modify readerIndex or writerIndex of this buffer. Please note that the returned NIO buffer will not see the changes of this buffer if this buffer is a dynamic buffer and it adjusted its capacity.
      Specified by:
      nioBuffer in class ByteBuf
      See Also:

    • deallocate

      protected void deallocate()
      Description copied from class: AbstractReferenceCountedByteBuf
      Called once AbstractReferenceCountedByteBuf.refCnt() is equals 0.
      Specified by:
      deallocate in class AbstractReferenceCountedByteBuf

    • unwrap

      public ByteBuf unwrap()
      Description copied from class: ByteBuf
      Return the underlying buffer instance if this buffer is a wrapper of another buffer.
      Specified by:
      unwrap in class ByteBuf
      Returns:
      null if this buffer is not a wrapper