com.alibaba.dubbo.remoting.transport.netty

类 NettyBackedChannelBuffer

java.lang.Object

com.alibaba.dubbo.remoting.transport.netty.NettyBackedChannelBuffer

所有已实现的接口:

ChannelBuffer, Comparable<ChannelBuffer>

public class NettyBackedChannelBuffer
extends Object
implements ChannelBuffer

构造器概要

构造器

构造器和说明
NettyBackedChannelBuffer(org.jboss.netty.buffer.ChannelBuffer buffer)

方法概要

方法

限定符和类型	方法和说明
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.
void	clear() Sets the readerIndex and writerIndex of this buffer to 0.
int	compareTo(ChannelBuffer o)
ChannelBuffer	copy() Returns a copy of this buffer's readable bytes.
ChannelBuffer	copy(int index, int length) Returns a copy of this buffer's sub-region.
void	discardReadBytes() Discards the bytes between the 0th index and readerIndex.
void	ensureWritableBytes(int writableBytes) Makes sure the number of the writable bytes is equal to or greater than the specified value.
ChannelBufferFactory	factory() Returns the factory which creates a ChannelBuffer whose type and default ByteOrder are same with this buffer.
byte	getByte(int index) Gets a byte at the specified absolute index in this buffer.
void	getBytes(int index, byte[] dst) Transfers this buffer's data to the specified destination starting at the specified absolute index.
void	getBytes(int index, byte[] dst, int dstIndex, int length) Transfers this buffer's data to the specified destination starting at the specified absolute index.
void	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.
void	getBytes(int index, ChannelBuffer dst) Transfers this buffer's data to the specified destination starting at the specified absolute index until the destination becomes non-writable.
void	getBytes(int index, ChannelBuffer dst, int length) Transfers this buffer's data to the specified destination starting at the specified absolute index.
void	getBytes(int index, ChannelBuffer dst, int dstIndex, int length) Transfers this buffer's data to the specified destination starting at the specified absolute index.
void	getBytes(int index, OutputStream dst, int length) Transfers this buffer's data to the specified stream starting at the specified absolute index.
boolean	hasArray() Returns true if and only if this buffer has a backing byte array.
boolean	isDirect() Returns true if and only if this buffer is backed by an NIO direct buffer.
void	markReaderIndex() Marks the current readerIndex in this buffer.
void	markWriterIndex() Marks the current writerIndex in this buffer.
org.jboss.netty.buffer.ChannelBuffer	nettyChannelBuffer()
boolean	readable() Returns true if and only if (this.writerIndex - this.readerIndex) is greater than 0.
int	readableBytes() Returns the number of readable bytes which is equal to (this.writerIndex - this.readerIndex).
byte	readByte() Gets a byte at the current readerIndex and increases the readerIndex by 1 in this buffer.
void	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).
void	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).
void	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.
void	readBytes(ChannelBuffer 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.
void	readBytes(ChannelBuffer 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).
void	readBytes(ChannelBuffer 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).
ChannelBuffer	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).
void	readBytes(OutputStream dst, int length) Transfers this buffer's data to the specified stream starting at the current readerIndex.
int	readerIndex() Returns the readerIndex of this buffer.
void	readerIndex(int readerIndex) Sets the readerIndex of this buffer.
void	resetReaderIndex() Repositions the current readerIndex to the marked readerIndex in this buffer.
void	resetWriterIndex() Marks the current writerIndex in this buffer.
void	setByte(int index, int value) Sets the specified byte at the specified absolute index in this buffer.
void	setBytes(int index, byte[] src) Transfers the specified source array's data to this buffer starting at the specified absolute index.
void	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.
void	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.
void	setBytes(int index, ChannelBuffer src) Transfers the specified source buffer's data to this buffer starting at the specified absolute index until the source buffer becomes unreadable.
void	setBytes(int index, ChannelBuffer src, int length) Transfers the specified source buffer's data to this buffer starting at the specified absolute index.
void	setBytes(int index, ChannelBuffer 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 src, int length) Transfers the content of the specified source stream to this buffer starting at the specified absolute index.
void	setIndex(int readerIndex, int writerIndex) Sets the readerIndex and writerIndex of this buffer in one shot.
void	skipBytes(int length) Increases the current readerIndex by the specified length in this buffer.
ByteBuffer	toByteBuffer() Converts this buffer's readable bytes into a NIO buffer.
ByteBuffer	toByteBuffer(int index, int length) Converts this buffer's sub-region into a NIO buffer.
boolean	writable() Returns true if and only if (this.capacity - this.writerIndex) is greater than 0.
int	writableBytes() Returns the number of writable bytes which is equal to (this.capacity - this.writerIndex).
void	writeByte(int value) Sets the specified byte at the current writerIndex and increases the writerIndex by 1 in this buffer.
void	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).
void	writeBytes(byte[] src, int index, 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).
void	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.
void	writeBytes(ChannelBuffer 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.
void	writeBytes(ChannelBuffer 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).
void	writeBytes(ChannelBuffer 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 src, 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.
int	writerIndex() Returns the writerIndex of this buffer.
void	writerIndex(int writerIndex) Sets the writerIndex of this buffer.

从类继承的方法 java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

从接口继承的方法 com.alibaba.dubbo.remoting.buffer.ChannelBuffer

equals

构造器详细资料

NettyBackedChannelBuffer

public NettyBackedChannelBuffer(org.jboss.netty.buffer.ChannelBuffer buffer)

方法详细资料

nettyChannelBuffer

public org.jboss.netty.buffer.ChannelBuffer nettyChannelBuffer()

capacity

public int capacity()

从接口复制的说明: ChannelBuffer

Returns the number of bytes (octets) this buffer can contain.

指定者:

capacity 在接口中 ChannelBuffer

copy

public ChannelBuffer copy(int index,
                 int length)

从接口复制的说明: ChannelBuffer

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.

指定者:

copy 在接口中 ChannelBuffer

factory

public ChannelBufferFactory factory()

从接口复制的说明: ChannelBuffer

Returns the factory which creates a ChannelBuffer whose type and default ByteOrder are same with this buffer.

指定者:

factory 在接口中 ChannelBuffer

getByte

public byte getByte(int index)

从接口复制的说明: ChannelBuffer

Gets a byte at the specified absolute index in this buffer. This method does not modify readerIndex or writerIndex of this buffer.

指定者:

getByte 在接口中 ChannelBuffer

getBytes

public void getBytes(int index,
            byte[] dst,
            int dstIndex,
            int length)

从接口复制的说明: ChannelBuffer

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.

指定者:

getBytes 在接口中 ChannelBuffer

dstIndex - the first index of the destination

length - the number of bytes to transfer

getBytes

public void getBytes(int index,
            ByteBuffer dst)

从接口复制的说明: ChannelBuffer

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.

指定者:

getBytes 在接口中 ChannelBuffer

getBytes

public void getBytes(int index,
            ChannelBuffer dst,
            int dstIndex,
            int length)

从接口复制的说明: ChannelBuffer

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.

指定者:

getBytes 在接口中 ChannelBuffer

dstIndex - the first index of the destination

length - the number of bytes to transfer

getBytes

public void getBytes(int index,
            OutputStream dst,
            int length)
              throws IOException

从接口复制的说明: ChannelBuffer

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.

指定者:

getBytes 在接口中 ChannelBuffer

length - the number of bytes to transfer

抛出:

IOException - if the specified stream threw an exception during I/O

isDirect

public boolean isDirect()

从接口复制的说明: ChannelBuffer

Returns true if and only if this buffer is backed by an NIO direct buffer.

指定者:

isDirect 在接口中 ChannelBuffer

setByte

public void setByte(int index,
           int value)

从接口复制的说明: ChannelBuffer

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.

指定者:

setByte 在接口中 ChannelBuffer

setBytes

public void setBytes(int index,
            byte[] src,
            int srcIndex,
            int length)

从接口复制的说明: ChannelBuffer

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.

指定者:

setBytes 在接口中 ChannelBuffer

setBytes

public void setBytes(int index,
            ByteBuffer src)

从接口复制的说明: ChannelBuffer

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.

指定者:

setBytes 在接口中 ChannelBuffer

setBytes

public void setBytes(int index,
            ChannelBuffer src,
            int srcIndex,
            int length)

从接口复制的说明: ChannelBuffer

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.

指定者:

setBytes 在接口中 ChannelBuffer

srcIndex - the first index of the source

length - the number of bytes to transfer

setBytes

public int setBytes(int index,
           InputStream src,
           int length)
             throws IOException

从接口复制的说明: ChannelBuffer

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.

指定者:

setBytes 在接口中 ChannelBuffer

length - the number of bytes to transfer

返回:

the actual number of bytes read in from the specified channel. -1 if the specified channel is closed.

抛出:

IOException - if the specified stream threw an exception during I/O

toByteBuffer

public ByteBuffer toByteBuffer(int index,
                      int length)

从接口复制的说明: ChannelBuffer

Converts this buffer's sub-region into a NIO buffer. The returned buffer might or might not share the content with this buffer, while they have separate indexes and marks. This method does not modify readerIndex or writerIndex of this buffer.

指定者:

toByteBuffer 在接口中 ChannelBuffer

array

public byte[] array()

从接口复制的说明: ChannelBuffer

Returns the backing byte array of this buffer.

指定者:

array 在接口中 ChannelBuffer

hasArray

public boolean hasArray()

从接口复制的说明: ChannelBuffer

Returns true if and only if this buffer has a backing byte array. If this method returns true, you can safely call ChannelBuffer.array() and ChannelBuffer.arrayOffset().

指定者:

hasArray 在接口中 ChannelBuffer

arrayOffset

public int arrayOffset()

从接口复制的说明: ChannelBuffer

Returns the offset of the first byte within the backing byte array of this buffer.

指定者:

arrayOffset 在接口中 ChannelBuffer

clear

public void clear()

从接口复制的说明: ChannelBuffer

Sets the readerIndex and writerIndex of this buffer to 0. This method is identical to setIndex(0, 0).

Please note that the behavior of this method is different from that of NIO buffer, which sets the limit to the capacity of the buffer.

指定者:

clear 在接口中 ChannelBuffer

copy

public ChannelBuffer copy()

从接口复制的说明: ChannelBuffer

Returns a copy of this buffer's readable bytes. Modifying the content of the returned buffer or this buffer does not affect each other at all. This method is identical to buf.copy(buf.readerIndex(), buf.readableBytes()). This method does not modify readerIndex or writerIndex of this buffer.

指定者:

copy 在接口中 ChannelBuffer

discardReadBytes

public void discardReadBytes()

从接口复制的说明: ChannelBuffer

Discards the bytes between the 0th index and readerIndex. It moves the bytes between readerIndex and writerIndex to the 0th index, and sets readerIndex and writerIndex to 0 and oldWriterIndex - oldReaderIndex respectively.

Please refer to the class documentation for more detailed explanation.

指定者:

discardReadBytes 在接口中 ChannelBuffer

ensureWritableBytes

public void ensureWritableBytes(int writableBytes)

从接口复制的说明: ChannelBuffer

Makes sure the number of the writable bytes is equal to or greater than the specified value. If there is enough writable bytes in this buffer, this method returns with no side effect. Otherwise:

• a non-dynamic buffer will throw an IndexOutOfBoundsException.
• a dynamic buffer will expand its capacity so that the number of the writable bytes becomes equal to or greater than the specified value. The expansion involves the reallocation of the internal buffer and consequently memory copy.

指定者:

ensureWritableBytes 在接口中 ChannelBuffer

参数:

writableBytes - the expected minimum number of writable bytes

getBytes

public void getBytes(int index,
            byte[] dst)

从接口复制的说明: ChannelBuffer

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

指定者:

getBytes 在接口中 ChannelBuffer

getBytes

public void getBytes(int index,
            ChannelBuffer dst)

从接口复制的说明: ChannelBuffer

Transfers this buffer's data to the specified destination starting at the specified absolute index until the destination becomes non-writable. This method is basically same with ChannelBuffer.getBytes(int, ChannelBuffer, int, int), except that this method increases the writerIndex of the destination by the number of the transferred bytes while ChannelBuffer.getBytes(int, ChannelBuffer, int, int) does not. This method does not modify readerIndex or writerIndex of the source buffer (i.e. this).

指定者:

getBytes 在接口中 ChannelBuffer

getBytes

public void getBytes(int index,
            ChannelBuffer dst,
            int length)

从接口复制的说明: ChannelBuffer

Transfers this buffer's data to the specified destination starting at the specified absolute index. This method is basically same with ChannelBuffer.getBytes(int, ChannelBuffer, int, int), except that this method increases the writerIndex of the destination by the number of the transferred bytes while ChannelBuffer.getBytes(int, ChannelBuffer, int, int) does not. This method does not modify readerIndex or writerIndex of the source buffer (i.e. this).

指定者:

getBytes 在接口中 ChannelBuffer

length - the number of bytes to transfer

markReaderIndex

public void markReaderIndex()

从接口复制的说明: ChannelBuffer

Marks the current readerIndex in this buffer. You can reposition the current readerIndex to the marked readerIndex by calling ChannelBuffer.resetReaderIndex(). The initial value of the marked readerIndex is 0.

指定者:

markReaderIndex 在接口中 ChannelBuffer

markWriterIndex

public void markWriterIndex()

从接口复制的说明: ChannelBuffer

Marks the current writerIndex in this buffer. You can reposition the current writerIndex to the marked writerIndex by calling ChannelBuffer.resetWriterIndex(). The initial value of the marked writerIndex is 0.

指定者:

markWriterIndex 在接口中 ChannelBuffer

readable

public boolean readable()

从接口复制的说明: ChannelBuffer

Returns true if and only if (this.writerIndex - this.readerIndex) is greater than 0.

指定者:

readable 在接口中 ChannelBuffer

readableBytes

public int readableBytes()

从接口复制的说明: ChannelBuffer

Returns the number of readable bytes which is equal to (this.writerIndex - this.readerIndex).

指定者:

readableBytes 在接口中 ChannelBuffer

readByte

public byte readByte()

从接口复制的说明: ChannelBuffer

Gets a byte at the current readerIndex and increases the readerIndex by 1 in this buffer.

指定者:

readByte 在接口中 ChannelBuffer

readBytes

public void readBytes(byte[] dst)

从接口复制的说明: ChannelBuffer

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).

指定者:

readBytes 在接口中 ChannelBuffer

readBytes

public void readBytes(byte[] dst,
             int dstIndex,
             int length)

从接口复制的说明: ChannelBuffer

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).

指定者:

readBytes 在接口中 ChannelBuffer

dstIndex - the first index of the destination

length - the number of bytes to transfer

readBytes

public void readBytes(ByteBuffer dst)

从接口复制的说明: ChannelBuffer

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.

指定者:

readBytes 在接口中 ChannelBuffer

readBytes

public void readBytes(ChannelBuffer dst)

从接口复制的说明: ChannelBuffer

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. This method is basically same with ChannelBuffer.readBytes(ChannelBuffer, int, int), except that this method increases the writerIndex of the destination by the number of the transferred bytes while ChannelBuffer.readBytes(ChannelBuffer, int, int) does not.

指定者:

readBytes 在接口中 ChannelBuffer

readBytes

public void readBytes(ChannelBuffer dst,
             int length)

从接口复制的说明: ChannelBuffer

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). This method is basically same with ChannelBuffer.readBytes(ChannelBuffer, int, int), except that this method increases the writerIndex of the destination by the number of the transferred bytes (= length) while ChannelBuffer.readBytes(ChannelBuffer, int, int) does not.

指定者:

readBytes 在接口中 ChannelBuffer

readBytes

public void readBytes(ChannelBuffer dst,
             int dstIndex,
             int length)

从接口复制的说明: ChannelBuffer

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).

指定者:

readBytes 在接口中 ChannelBuffer

dstIndex - the first index of the destination

length - the number of bytes to transfer

readBytes

public ChannelBuffer readBytes(int length)

从接口复制的说明: ChannelBuffer

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). The returned buffer's readerIndex and writerIndex are 0 and length respectively.

指定者:

readBytes 在接口中 ChannelBuffer

参数:

length - the number of bytes to transfer

返回:

the newly created buffer which contains the transferred bytes

resetReaderIndex

public void resetReaderIndex()

从接口复制的说明: ChannelBuffer

Repositions the current readerIndex to the marked readerIndex in this buffer.

指定者:

resetReaderIndex 在接口中 ChannelBuffer

resetWriterIndex

public void resetWriterIndex()

从接口复制的说明: ChannelBuffer

Marks the current writerIndex in this buffer. You can reposition the current writerIndex to the marked writerIndex by calling ChannelBuffer.resetWriterIndex(). The initial value of the marked writerIndex is 0.

指定者:

resetWriterIndex 在接口中 ChannelBuffer

readerIndex

public int readerIndex()

从接口复制的说明: ChannelBuffer

Returns the readerIndex of this buffer.

指定者:

readerIndex 在接口中 ChannelBuffer

readerIndex

public void readerIndex(int readerIndex)

从接口复制的说明: ChannelBuffer

Sets the readerIndex of this buffer.

指定者:

readerIndex 在接口中 ChannelBuffer

readBytes

public void readBytes(OutputStream dst,
             int length)
               throws IOException

从接口复制的说明: ChannelBuffer

Transfers this buffer's data to the specified stream starting at the current readerIndex.

指定者:

readBytes 在接口中 ChannelBuffer

length - the number of bytes to transfer

抛出:

IOException - if the specified stream threw an exception during I/O

setBytes

public void setBytes(int index,
            byte[] src)

从接口复制的说明: ChannelBuffer

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.

指定者:

setBytes 在接口中 ChannelBuffer

setBytes

public void setBytes(int index,
            ChannelBuffer src)

从接口复制的说明: ChannelBuffer

Transfers the specified source buffer's data to this buffer starting at the specified absolute index until the source buffer becomes unreadable. This method is basically same with ChannelBuffer.setBytes(int, ChannelBuffer, int, int), except that this method increases the readerIndex of the source buffer by the number of the transferred bytes while ChannelBuffer.setBytes(int, ChannelBuffer, int, int) does not. This method does not modify readerIndex or writerIndex of the source buffer (i.e. this).

指定者:

setBytes 在接口中 ChannelBuffer

setBytes

public void setBytes(int index,
            ChannelBuffer src,
            int length)

从接口复制的说明: ChannelBuffer

Transfers the specified source buffer's data to this buffer starting at the specified absolute index. This method is basically same with ChannelBuffer.setBytes(int, ChannelBuffer, int, int), except that this method increases the readerIndex of the source buffer by the number of the transferred bytes while ChannelBuffer.setBytes(int, ChannelBuffer, int, int) does not. This method does not modify readerIndex or writerIndex of the source buffer (i.e. this).

指定者:

setBytes 在接口中 ChannelBuffer

length - the number of bytes to transfer

setIndex

public void setIndex(int readerIndex,
            int writerIndex)

从接口复制的说明: ChannelBuffer

Sets the readerIndex and writerIndex of this buffer in one shot. This method is useful when you have to worry about the invocation order of ChannelBuffer.readerIndex(int) and ChannelBuffer.writerIndex(int) methods. For example, the following code will fail:

 // Create a buffer whose readerIndex, writerIndex and capacity are
 // 0, 0 and 8 respectively.
 ChannelBuffer buf = ChannelBuffers.buffer(8);

 // IndexOutOfBoundsException is thrown because the specified
 // readerIndex (2) cannot be greater than the current writerIndex (0).
 buf.readerIndex(2);
 buf.writerIndex(4);
 

The following code will also fail:

 // Create a buffer whose readerIndex, writerIndex and capacity are
 // 0, 8 and 8 respectively.
 ChannelBuffer buf = ChannelBuffers.wrappedBuffer(new
 byte[8]);

 // readerIndex becomes 8.
 buf.readLong();

 // IndexOutOfBoundsException is thrown because the specified
 // writerIndex (4) cannot be less than the current readerIndex (8).
 buf.writerIndex(4);
 buf.readerIndex(2);
 

By contrast, ChannelBuffer.setIndex(int, int) guarantees that it never throws an IndexOutOfBoundsException as long as the specified indexes meet basic constraints, regardless what the current index values of the buffer are:

 // No matter what the current state of the buffer is, the following
 // call always succeeds as long as the capacity of the buffer is not
 // less than 4.
 buf.setIndex(2, 4);
 

指定者:

setIndex 在接口中 ChannelBuffer

skipBytes

public void skipBytes(int length)

从接口复制的说明: ChannelBuffer

Increases the current readerIndex by the specified length in this buffer.

指定者:

skipBytes 在接口中 ChannelBuffer

toByteBuffer

public ByteBuffer toByteBuffer()

从接口复制的说明: ChannelBuffer

Converts this buffer's readable bytes into a NIO buffer. The returned buffer might or might not share the content with this buffer, while they have separate indexes and marks. This method is identical to buf.toByteBuffer(buf.readerIndex(), buf.readableBytes()). This method does not modify readerIndex or writerIndex of this buffer.

指定者:

toByteBuffer 在接口中 ChannelBuffer

writable

public boolean writable()

从接口复制的说明: ChannelBuffer

Returns true if and only if (this.capacity - this.writerIndex) is greater than 0.

指定者:

writable 在接口中 ChannelBuffer

writableBytes

public int writableBytes()

从接口复制的说明: ChannelBuffer

Returns the number of writable bytes which is equal to (this.capacity - this.writerIndex).

指定者:

writableBytes 在接口中 ChannelBuffer

writeByte

public void writeByte(int value)

从接口复制的说明: ChannelBuffer

Sets the specified byte at the current writerIndex and increases the writerIndex by 1 in this buffer. The 24 high-order bits of the specified value are ignored.

指定者:

writeByte 在接口中 ChannelBuffer

writeBytes

public void writeBytes(byte[] src)

从接口复制的说明: ChannelBuffer

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).

指定者:

writeBytes 在接口中 ChannelBuffer

writeBytes

public void writeBytes(byte[] src,
              int index,
              int length)

从接口复制的说明: ChannelBuffer

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).

指定者:

writeBytes 在接口中 ChannelBuffer

index - the first index of the source

length - the number of bytes to transfer

writeBytes

public void writeBytes(ByteBuffer src)

从接口复制的说明: ChannelBuffer

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.

指定者:

writeBytes 在接口中 ChannelBuffer

writeBytes

public void writeBytes(ChannelBuffer src)

从接口复制的说明: ChannelBuffer

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. This method is basically same with ChannelBuffer.writeBytes(ChannelBuffer, int, int), except that this method increases the readerIndex of the source buffer by the number of the transferred bytes while ChannelBuffer.writeBytes(ChannelBuffer, int, int) does not.

指定者:

writeBytes 在接口中 ChannelBuffer

writeBytes

public void writeBytes(ChannelBuffer src,
              int length)

从接口复制的说明: ChannelBuffer

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). This method is basically same with ChannelBuffer.writeBytes(ChannelBuffer, int, int), except that this method increases the readerIndex of the source buffer by the number of the transferred bytes (= length) while ChannelBuffer.writeBytes(ChannelBuffer, int, int) does not.

指定者:

writeBytes 在接口中 ChannelBuffer

length - the number of bytes to transfer

writeBytes

public void writeBytes(ChannelBuffer src,
              int srcIndex,
              int length)

从接口复制的说明: ChannelBuffer

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).

指定者:

writeBytes 在接口中 ChannelBuffer

srcIndex - the first index of the source

length - the number of bytes to transfer

writeBytes

public int writeBytes(InputStream src,
             int length)
               throws IOException

从接口复制的说明: ChannelBuffer

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.

指定者:

writeBytes 在接口中 ChannelBuffer

length - the number of bytes to transfer

返回:

the actual number of bytes read in from the specified stream

抛出:

IOException - if the specified stream threw an exception during I/O

writerIndex

public int writerIndex()

从接口复制的说明: ChannelBuffer

Returns the writerIndex of this buffer.

指定者:

writerIndex 在接口中 ChannelBuffer

writerIndex

public void writerIndex(int writerIndex)

从接口复制的说明: ChannelBuffer

Sets the writerIndex of this buffer.

指定者:

writerIndex 在接口中 ChannelBuffer

compareTo

public int compareTo(ChannelBuffer o)

指定者:

compareTo 在接口中 Comparable<ChannelBuffer>