AbstractReferenceCountedByteBuf (Netty API Reference (4.1.22.Final))

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

All Implemented Interfaces:

ReferenceCounted ，java.lang.Comparable < ByteBuf >

已知直接子类：

CompositeByteBuf ， UnpooledDirectByteBuf ， UnpooledHeapByteBuf ， UnpooledUnsafeDirectByteBuf
```
public abstract class AbstractReferenceCountedByteBuf
extends AbstractByteBuf
```
ByteBuf实现的抽象基类，用于对引用进行计数。

构造方法摘要

构造方法
Modifier	Constructor and Description
`protected`	`AbstractReferenceCountedByteBuf(int maxCapacity)`

方法摘要

所有方法接口方法抽象方法具体的方法
Modifier and Type	Method and Description
`protected abstract void`	`deallocate()` 一次调用 `refCnt()`等于0。
`int`	`refCnt()` 返回此对象的引用计数。
`boolean`	`release()` 通过减小引用计数 `1`并且如果所述引用计数达到在将释放该对象 `0` 。
`boolean`	`release(int decrement)` 减小由指定的引用计数 `decrement`并且如果所述引用计数达到在将释放该对象 `0` 。
`ByteBuf`	`retain()` 将引用计数增加 `1` 。
`ByteBuf`	`retain(int increment)` 将参考计数增加指定的 `increment` 。
`protected void`	`setRefCnt(int refCnt)` 一个不安全的操作，旨在供直接设置缓冲区引用计数的子类使用
`ByteBuf`	`touch()` 记录此对象的当前访问位置以进行调试。
`ByteBuf`	`touch(java.lang.Object hint)` 记录此对象的当前访问位置，并附加一些用于调试的任意信息。

Methods inherited from class io.netty.buffer.AbstractByteBuf
_getByte, _getInt, _getIntLE, _getLong, _getLongLE, _getShort, _getShortLE, _getUnsignedMedium, _getUnsignedMediumLE, _setByte, _setInt, _setIntLE, _setLong, _setLongLE, _setMedium, _setMediumLE, _setShort, _setShortLE, adjustMarkers, asReadOnly, bytesBefore, bytesBefore, bytesBefore, checkDstIndex, checkIndex, checkIndex, checkNewCapacity, checkReadableBytes, checkSrcIndex, clear, compareTo, copy, discardReadBytes, discardSomeReadBytes, duplicate, ensureAccessible, ensureWritable, ensureWritable, equals, forEachByte, forEachByte, forEachByteDesc, forEachByteDesc, getBoolean, getByte, getBytes, getBytes, getBytes, getChar, getCharSequence, getDouble, getFloat, getInt, getIntLE, getLong, getLongLE, getMedium, getMediumLE, getShort, getShortLE, getUnsignedByte, getUnsignedInt, getUnsignedIntLE, getUnsignedMedium, 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, 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, setByte, setBytes, setBytes, setBytes, setChar, setCharSequence, setDouble, setFloat, setIndex, setInt, setIntLE, setLong, setLongLE, setMedium, setMediumLE, setShort, setShortLE, setZero, skipBytes, slice, slice, toString, toString, toString, 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

Methods inherited from class io.netty.buffer.ByteBuf
alloc, array, arrayOffset, capacity, capacity, copy, getBytes, getBytes, getBytes, getBytes, getBytes, getBytes, getDoubleLE, getFloatLE, hasArray, hasMemoryAddress, internalNioBuffer, isDirect, memoryAddress, nioBuffer, nioBufferCount, nioBuffers, order, readDoubleLE, readFloatLE, setBytes, setBytes, setBytes, setBytes, setBytes, setBytes, setDoubleLE, setFloatLE, unwrap, writeDoubleLE, writeFloatLE

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

- 构造方法详细信息
  - AbstractReferenceCountedByteBuf
```
protected AbstractReferenceCountedByteBuf(int maxCapacity)
```
- 方法详细信息
  - refCnt
```
public int refCnt()
```
    从接口ReferenceCounted复制的描述
    
    返回此对象的引用计数。如果0 ，则表示该对象已被释放。
  - setRefCnt
```
protected final void setRefCnt(int refCnt)
```
    一个不安全的操作，旨在供直接设置缓冲区引用计数的子类使用
  - retain
```
public ByteBuf retain()
```
    从接口ReferenceCounted复制的描述
    
    将引用计数增加 1 。
    
    Specified by:
    
    retain在界面 ReferenceCounted
    
    Specified by:
    
    retain在课堂 ByteBuf
  - retain
```
public ByteBuf retain(int increment)
```
    从接口复制的描述： ReferenceCounted
    
    将参考计数增加指定的 increment 。
    
    Specified by:
    
    retain在界面 ReferenceCounted
    
    Specified by:
    
    retain ByteBuf
  - touch
```
public ByteBuf touch()
```
    从接口ReferenceCounted复制的描述
    
    记录此对象的当前访问位置以进行调试。如果确定此物体泄漏，则通过此操作记录的信息将通过ResourceLeakDetector提供给您。此方法是touch(null)的快捷方式。
    
    Specified by:
    
    touch在界面 ReferenceCounted
    
    Specified by:
    
    touch ByteBuf
  - touch
```
public ByteBuf touch(java.lang.Object hint)
```
    从接口ReferenceCounted复制的描述
    
    记录此对象的当前访问位置，并附加一些用于调试的任意信息。如果确定此物体泄漏，则通过此操作记录的信息将通过ResourceLeakDetector提供给您。
    
    Specified by:
    
    touch在界面 ReferenceCounted
    
    Specified by:
    
    touch在课堂 ByteBuf
  - release
```
public boolean release()
```
    从接口ReferenceCounted复制的描述
    
    通过减小引用计数 1并且如果所述引用计数达到在将释放该对象 0 。
    
    结果
    
    true当且仅当引用计数变为 0且此对象已被释放
  - release
```
public boolean release(int decrement)
```
    从界面复制的描述： ReferenceCounted
    
    减小由指定的引用计数 decrement并且如果所述引用计数达到在将释放该对象 0 。
    
    结果
    
    true当且仅当引用计数变为 0且此对象已被释放
  - deallocate
```
protected abstract void deallocate()
```
    一次调用 refCnt()等于0。

Class AbstractReferenceCountedByteBuf

构造方法摘要

方法摘要

Methods inherited from class io.netty.buffer.AbstractByteBuf

Methods inherited from class io.netty.buffer.ByteBuf

Methods inherited from class java.lang.Object

构造方法详细信息

AbstractReferenceCountedByteBuf

方法详细信息

refCnt

setRefCnt

retain

retain

touch

touch

release

release

deallocate