java.lang.Object
- io.netty.buffer.ByteBuf
- - io.netty.buffer.AbstractByteBuf
  - - io.netty.buffer.AbstractReferenceCountedByteBuf
    - - io.netty.buffer.UnpooledDirectByteBuf
      - io.netty.buffer.UnpooledUnsafeDirectByteBuf

All Implemented Interfaces:

ByteBufConvertible, ReferenceCounted, java.lang.Comparable<ByteBuf>
```
public class UnpooledUnsafeDirectByteBuf
extends UnpooledDirectByteBuf
```
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
`protected`	`UnpooledUnsafeDirectByteBuf(ByteBufAllocator alloc, boolean slice, java.nio.ByteBuffer initialBuffer, int maxCapacity)`	Creates a new direct ByteBuf by wrapping the specified initial buffer.
	`UnpooledUnsafeDirectByteBuf(ByteBufAllocator alloc, int initialCapacity, int maxCapacity)`	Creates a new direct buffer.
`protected`	`UnpooledUnsafeDirectByteBuf(ByteBufAllocator alloc, java.nio.ByteBuffer initialBuffer, int maxCapacity)`	Creates a new direct buffer by wrapping the specified initial buffer.

Method Summary

All Methods Instance Methods Concrete Methods
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)`
`ByteBuf`	`copy(int index, int length)`	Returns a copy of this buffer's sub-region.
`byte`	`getByte(int index)`	Gets a byte at the specified absolute `index` in this buffer.
`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`.
`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`	`hasMemoryAddress()`	Returns `true` if and only if this buffer has a reference to the low-level memory address that points to the backing data.
`long`	`memoryAddress()`	Returns the low-level memory address that point to the first byte of ths backing data.
`protected SwappedByteBuf`	`newSwappedByteBuf()`	Creates a new `SwappedByteBuf` for this `ByteBuf` instance.
`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, java.io.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, java.nio.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.
`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`	`setZero(int index, int length)`	Fills this buffer with `NUL (0x00)` starting at the specified absolute `index`.
`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 io.netty.buffer.UnpooledDirectByteBuf
alloc, allocateDirect, allocateDirectBuffer, array, arrayOffset, capacity, capacity, deallocate, freeDirect, getBytes, getBytes, getBytes, getBytes, getBytes, getIntLE, getLongLE, getShortLE, hasArray, internalNioBuffer, isContiguous, isDirect, nioBuffer, nioBufferCount, nioBuffers, order, readBytes, readBytes, readBytes, readBytes, readBytes, setBytes, setBytes, setIntLE, setLongLE, setMediumLE, setShortLE, unwrap

Methods inherited from class io.netty.buffer.AbstractReferenceCountedByteBuf
refCnt, release, release, resetRefCnt, retain, retain, setRefCnt, touch, touch

Methods inherited from class io.netty.buffer.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, getMedium, getMediumLE, getUnsignedByte, getUnsignedInt, getUnsignedIntLE, getUnsignedMediumLE, getUnsignedShort, getUnsignedShortLE, hashCode, indexOf, isReadable, isReadable, isReadOnly, isWritable, isWritable, markReaderIndex, markWriterIndex, maxCapacity, maxCapacity, maxWritableBytes, 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, readString, readUnsignedByte, readUnsignedInt, readUnsignedIntLE, readUnsignedMedium, readUnsignedMediumLE, readUnsignedShort, readUnsignedShortLE, resetReaderIndex, resetWriterIndex, retainedDuplicate, retainedSlice, retainedSlice, setBoolean, setBytes, setBytes, setBytes, setChar, setCharSequence, setDouble, setFloat, setIndex, 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

Methods inherited from class io.netty.buffer.ByteBuf
asByteBuf, getDoubleLE, getFloatLE, maxFastWritableBytes, readDoubleLE, readFloatLE, setDoubleLE, setFloatLE, writeDoubleLE, writeFloatLE

Methods inherited from class java.lang.Object
clone, finalize, getClass, notify, notifyAll, wait, wait, wait

- Constructor Detail
  - UnpooledUnsafeDirectByteBuf
```
public UnpooledUnsafeDirectByteBuf(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
  - UnpooledUnsafeDirectByteBuf
```
protected UnpooledUnsafeDirectByteBuf(ByteBufAllocator alloc,
                                      java.nio.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
  - UnpooledUnsafeDirectByteBuf
```
@UnstableApi
protected UnpooledUnsafeDirectByteBuf(ByteBufAllocator alloc,
                                      boolean slice,
                                      java.nio.ByteBuffer initialBuffer,
                                      int maxCapacity)
```
    Creates a new direct ByteBuf by wrapping the specified initial buffer. Allows subclasses to control if initialBuffer.slice() should be invoked. Attention: this is a dangerous API and should only be used by someone who really knows the possible consequences. It allows to disable a protective slicing for the provided ByteBuffer instance and can cause sharing of this ByteBuffer instance between several UnpooledUnsafeDirectByteBuf objects, as a result modifications would be racy and unsafe.
    
    Parameters:
    
    slice - true means slice() should be called for the provided initialBuffer
    
    maxCapacity - the maximum capacity of the underlying direct buffer
- Method Detail
  - 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.
    
    Overrides:
    
    hasMemoryAddress in class UnpooledDirectByteBuf
  - 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.
    
    Overrides:
    
    memoryAddress in class UnpooledDirectByteBuf
  - 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 UnpooledDirectByteBuf
  - _getByte
```
protected byte _getByte(int index)
```
    Overrides:
    
    _getByte in class UnpooledDirectByteBuf
  - 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 UnpooledDirectByteBuf
  - _getShort
```
protected short _getShort(int index)
```
    Overrides:
    
    _getShort in class UnpooledDirectByteBuf
  - _getShortLE
```
protected short _getShortLE(int index)
```
    Overrides:
    
    _getShortLE in class UnpooledDirectByteBuf
  - 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 UnpooledDirectByteBuf
  - _getUnsignedMedium
```
protected int _getUnsignedMedium(int index)
```
    Overrides:
    
    _getUnsignedMedium in class UnpooledDirectByteBuf
  - _getUnsignedMediumLE
```
protected int _getUnsignedMediumLE(int index)
```
    Overrides:
    
    _getUnsignedMediumLE in class UnpooledDirectByteBuf
  - 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 UnpooledDirectByteBuf
  - _getInt
```
protected int _getInt(int index)
```
    Overrides:
    
    _getInt in class UnpooledDirectByteBuf
  - _getIntLE
```
protected int _getIntLE(int index)
```
    Overrides:
    
    _getIntLE in class UnpooledDirectByteBuf
  - 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 UnpooledDirectByteBuf
  - _getLong
```
protected long _getLong(int index)
```
    Overrides:
    
    _getLong in class UnpooledDirectByteBuf
  - _getLongLE
```
protected long _getLongLE(int index)
```
    Overrides:
    
    _getLongLE in class UnpooledDirectByteBuf
  - 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.
    
    Overrides:
    
    getBytes in class UnpooledDirectByteBuf
    
    dstIndex - the first index of the destination
    
    length - the number of bytes to transfer
  - 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 UnpooledDirectByteBuf
  - _setByte
```
protected void _setByte(int index,
                        int value)
```
    Overrides:
    
    _setByte in class UnpooledDirectByteBuf
  - 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 UnpooledDirectByteBuf
  - _setShort
```
protected void _setShort(int index,
                         int value)
```
    Overrides:
    
    _setShort in class UnpooledDirectByteBuf
  - _setShortLE
```
protected void _setShortLE(int index,
                           int value)
```
    Overrides:
    
    _setShortLE in class UnpooledDirectByteBuf
  - 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 UnpooledDirectByteBuf
  - _setMedium
```
protected void _setMedium(int index,
                          int value)
```
    Overrides:
    
    _setMedium in class UnpooledDirectByteBuf
  - _setMediumLE
```
protected void _setMediumLE(int index,
                            int value)
```
    Overrides:
    
    _setMediumLE in class UnpooledDirectByteBuf
  - 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 UnpooledDirectByteBuf
  - _setInt
```
protected void _setInt(int index,
                       int value)
```
    Overrides:
    
    _setInt in class UnpooledDirectByteBuf
  - _setIntLE
```
protected void _setIntLE(int index,
                         int value)
```
    Overrides:
    
    _setIntLE in class UnpooledDirectByteBuf
  - 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 UnpooledDirectByteBuf
  - _setLong
```
protected void _setLong(int index,
                        long value)
```
    Overrides:
    
    _setLong in class UnpooledDirectByteBuf
  - _setLongLE
```
protected void _setLongLE(int index,
                          long value)
```
    Overrides:
    
    _setLongLE in class UnpooledDirectByteBuf
  - 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.
    
    Overrides:
    
    setBytes in class UnpooledDirectByteBuf
    
    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.
    
    Overrides:
    
    setBytes in class UnpooledDirectByteBuf
  - setBytes
```
public ByteBuf setBytes(int index,
                        java.nio.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.
    
    Overrides:
    
    setBytes in class UnpooledDirectByteBuf
  - setBytes
```
public int setBytes(int index,
                    java.io.InputStream in,
                    int length)
             throws java.io.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.
    
    Overrides:
    
    setBytes in class UnpooledDirectByteBuf
    
    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:
    
    java.io.IOException - if the specified stream threw an exception during I/O
  - 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.
    
    Overrides:
    
    copy in class UnpooledDirectByteBuf
  - newSwappedByteBuf
```
protected SwappedByteBuf newSwappedByteBuf()
```
    Description copied from class: AbstractByteBuf
    
    Creates a new SwappedByteBuf for this ByteBuf instance.
    
    Overrides:
    
    newSwappedByteBuf in class AbstractByteBuf
  - setZero
```
public ByteBuf setZero(int index,
                       int length)
```
    Description copied from class: ByteBuf
    
    Fills this buffer with NUL (0x00) starting at the specified absolute index. This method does not modify readerIndex or writerIndex of this buffer.
    
    Overrides:
    
    setZero in class AbstractByteBuf
    
    length - the number of NULs to write to the buffer
  - writeZero
```
public ByteBuf writeZero(int length)
```
    Description copied from class: ByteBuf
    
    Fills this buffer with NUL (0x00) starting at the current writerIndex and increases the writerIndex by the specified length. If this.writableBytes is less than length, ByteBuf.ensureWritable(int) will be called in an attempt to expand capacity to accommodate.
    
    Overrides:
    
    writeZero in class AbstractByteBuf
    
    Parameters:
    
    length - the number of NULs to write to the buffer

Class UnpooledUnsafeDirectByteBuf

Constructor Summary

Method Summary

Methods inherited from class io.netty.buffer.UnpooledDirectByteBuf

Methods inherited from class io.netty.buffer.AbstractReferenceCountedByteBuf

Methods inherited from class io.netty.buffer.AbstractByteBuf

Methods inherited from class io.netty.buffer.ByteBuf

Methods inherited from class java.lang.Object

Constructor Detail

UnpooledUnsafeDirectByteBuf

UnpooledUnsafeDirectByteBuf

UnpooledUnsafeDirectByteBuf

Method Detail

hasMemoryAddress

memoryAddress

getByte

_getByte

getShort

_getShort

_getShortLE

getUnsignedMedium

_getUnsignedMedium

_getUnsignedMediumLE

getInt

_getInt

_getIntLE

getLong

_getLong

_getLongLE

getBytes

setByte

_setByte

setShort

_setShort

_setShortLE

setMedium

_setMedium

_setMediumLE

setInt

_setInt

_setIntLE

setLong

_setLong

_setLongLE

setBytes

setBytes

setBytes

setBytes

copy

newSwappedByteBuf

setZero

writeZero