SocketChannelConfig (Netty API Reference (4.0.56.Final))

All Superinterfaces:: ChannelConfig

All Known Subinterfaces:: OioSocketChannelConfig

All Known Implementing Classes:: DefaultOioSocketChannelConfig, DefaultSocketChannelConfig, EpollSocketChannelConfig

public interface SocketChannelConfig
extends ChannelConfig

A ChannelConfig for a SocketChannel.

Available options

In addition to the options provided by ChannelConfig, SocketChannelConfig allows the following options in the option map:

Name	Associated setter method
`ChannelOption.SO_KEEPALIVE`	`setKeepAlive(boolean)`
`ChannelOption.SO_REUSEADDR`	`setReuseAddress(boolean)`
`ChannelOption.SO_LINGER`	`setSoLinger(int)`
`ChannelOption.TCP_NODELAY`	`setTcpNoDelay(boolean)`
`ChannelOption.SO_RCVBUF`	`setReceiveBufferSize(int)`
`ChannelOption.SO_SNDBUF`	`setSendBufferSize(int)`
`ChannelOption.IP_TOS`	`setTrafficClass(int)`
`ChannelOption.ALLOW_HALF_CLOSURE`	`setAllowHalfClosure(boolean)`

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method and Description
`int`	`getReceiveBufferSize()` Gets the `StandardSocketOptions.SO_RCVBUF` option.
`int`	`getSendBufferSize()` Gets the `StandardSocketOptions.SO_SNDBUF` option.
`int`	`getSoLinger()` Gets the `StandardSocketOptions.SO_LINGER` option.
`int`	`getTrafficClass()` Gets the `StandardSocketOptions.IP_TOS` option.
`boolean`	`isAllowHalfClosure()` Returns `true` if and only if the channel should not close itself when its remote peer shuts down output to make the connection half-closed.
`boolean`	`isKeepAlive()` Gets the `StandardSocketOptions.SO_KEEPALIVE` option.
`boolean`	`isReuseAddress()` Gets the `StandardSocketOptions.SO_REUSEADDR` option.
`boolean`	`isTcpNoDelay()` Gets the `StandardSocketOptions.TCP_NODELAY` option.
`SocketChannelConfig`	`setAllocator(ByteBufAllocator allocator)` Set the `ByteBufAllocator` which is used for the channel to allocate buffers.
`SocketChannelConfig`	`setAllowHalfClosure(boolean allowHalfClosure)` Sets whether the channel should not close itself when its remote peer shuts down output to make the connection half-closed.
`SocketChannelConfig`	`setAutoClose(boolean autoClose)`
`SocketChannelConfig`	`setAutoRead(boolean autoRead)` Sets if `ChannelHandlerContext.read()` will be invoked automatically so that a user application doesn't need to call it at all.
`SocketChannelConfig`	`setConnectTimeoutMillis(int connectTimeoutMillis)` Sets the connect timeout of the channel in milliseconds.
`SocketChannelConfig`	`setKeepAlive(boolean keepAlive)` Sets the `StandardSocketOptions.SO_KEEPALIVE` option.
`SocketChannelConfig`	`setMaxMessagesPerRead(int maxMessagesPerRead)` Sets the maximum number of messages to read per read loop.
`SocketChannelConfig`	`setMessageSizeEstimator(MessageSizeEstimator estimator)` Set the `MessageSizeEstimator` which is used for the channel to detect the size of a message.
`SocketChannelConfig`	`setPerformancePreferences(int connectionTime, int latency, int bandwidth)` Sets the performance preferences as specified in `Socket.setPerformancePreferences(int, int, int)`.
`SocketChannelConfig`	`setReceiveBufferSize(int receiveBufferSize)` Sets the `StandardSocketOptions.SO_RCVBUF` option.
`SocketChannelConfig`	`setRecvByteBufAllocator(RecvByteBufAllocator allocator)` Set the `ByteBufAllocator` which is used for the channel to allocate receive buffers.
`SocketChannelConfig`	`setReuseAddress(boolean reuseAddress)` Sets the `StandardSocketOptions.SO_REUSEADDR` option.
`SocketChannelConfig`	`setSendBufferSize(int sendBufferSize)` Sets the `StandardSocketOptions.SO_SNDBUF` option.
`SocketChannelConfig`	`setSoLinger(int soLinger)` Sets the `StandardSocketOptions.SO_LINGER` option.
`SocketChannelConfig`	`setTcpNoDelay(boolean tcpNoDelay)` Sets the `StandardSocketOptions.TCP_NODELAY` option.
`SocketChannelConfig`	`setTrafficClass(int trafficClass)` Sets the `StandardSocketOptions.IP_TOS` option.
`SocketChannelConfig`	`setWriteSpinCount(int writeSpinCount)` Sets the maximum loop count for a write operation until `WritableByteChannel.write(ByteBuffer)` returns a non-zero value.

Methods inherited from interface io.netty.channel.ChannelConfig
getAllocator, getConnectTimeoutMillis, getMaxMessagesPerRead, getMessageSizeEstimator, getOption, getOptions, getRecvByteBufAllocator, getWriteBufferHighWaterMark, getWriteBufferLowWaterMark, getWriteSpinCount, isAutoClose, isAutoRead, setOption, setOptions, setWriteBufferHighWaterMark, setWriteBufferLowWaterMark

- Method Detail
  - isTcpNoDelay
```
boolean isTcpNoDelay()
```
    Gets the StandardSocketOptions.TCP_NODELAY option. Please note that the default value of this option is true unlike the operating system default (false). However, for some buggy platforms, such as Android, that shows erratic behavior with Nagle's algorithm disabled, the default value remains to be false.
  - setTcpNoDelay
```
SocketChannelConfig setTcpNoDelay(boolean tcpNoDelay)
```
    Sets the StandardSocketOptions.TCP_NODELAY option. Please note that the default value of this option is true unlike the operating system default (false). However, for some buggy platforms, such as Android, that shows erratic behavior with Nagle's algorithm disabled, the default value remains to be false.
  - getSoLinger
```
int getSoLinger()
```
    Gets the StandardSocketOptions.SO_LINGER option.
  - setSoLinger
```
SocketChannelConfig setSoLinger(int soLinger)
```
    Sets the StandardSocketOptions.SO_LINGER option.
  - getSendBufferSize
```
int getSendBufferSize()
```
    Gets the StandardSocketOptions.SO_SNDBUF option.
  - setSendBufferSize
```
SocketChannelConfig setSendBufferSize(int sendBufferSize)
```
    Sets the StandardSocketOptions.SO_SNDBUF option.
  - getReceiveBufferSize
```
int getReceiveBufferSize()
```
    Gets the StandardSocketOptions.SO_RCVBUF option.
  - setReceiveBufferSize
```
SocketChannelConfig setReceiveBufferSize(int receiveBufferSize)
```
    Sets the StandardSocketOptions.SO_RCVBUF option.
  - isKeepAlive
```
boolean isKeepAlive()
```
    Gets the StandardSocketOptions.SO_KEEPALIVE option.
  - setKeepAlive
```
SocketChannelConfig setKeepAlive(boolean keepAlive)
```
    Sets the StandardSocketOptions.SO_KEEPALIVE option.
  - getTrafficClass
```
int getTrafficClass()
```
    Gets the StandardSocketOptions.IP_TOS option.
  - setTrafficClass
```
SocketChannelConfig setTrafficClass(int trafficClass)
```
    Sets the StandardSocketOptions.IP_TOS option.
  - isReuseAddress
```
boolean isReuseAddress()
```
    Gets the StandardSocketOptions.SO_REUSEADDR option.
  - setReuseAddress
```
SocketChannelConfig setReuseAddress(boolean reuseAddress)
```
    Sets the StandardSocketOptions.SO_REUSEADDR option.
  - setPerformancePreferences
```
SocketChannelConfig setPerformancePreferences(int connectionTime,
                                              int latency,
                                              int bandwidth)
```
    Sets the performance preferences as specified in Socket.setPerformancePreferences(int, int, int).
  - isAllowHalfClosure
```
boolean isAllowHalfClosure()
```
    Returns true if and only if the channel should not close itself when its remote peer shuts down output to make the connection half-closed. If false, the connection is closed automatically when the remote peer shuts down output.
  - setAllowHalfClosure
```
SocketChannelConfig setAllowHalfClosure(boolean allowHalfClosure)
```
    Sets whether the channel should not close itself when its remote peer shuts down output to make the connection half-closed. If true the connection is not closed when the remote peer shuts down output. Instead, ChannelInboundHandler.userEventTriggered(ChannelHandlerContext, Object) is invoked with a ChannelInputShutdownEvent object. If false, the connection is closed automatically.
  - setConnectTimeoutMillis
```
SocketChannelConfig setConnectTimeoutMillis(int connectTimeoutMillis)
```
    Description copied from interface: ChannelConfig
    
    Sets the connect timeout of the channel in milliseconds. If the Channel does not support connect operation, this property is not used at all, and therefore will be ignored.
    
    Specified by:
    
    setConnectTimeoutMillis in interface ChannelConfig
    
    Parameters:
    
    connectTimeoutMillis - the connect timeout in milliseconds. 0 to disable.
  - setMaxMessagesPerRead
```
SocketChannelConfig setMaxMessagesPerRead(int maxMessagesPerRead)
```
    Description copied from interface: ChannelConfig
    
    Sets the maximum number of messages to read per read loop. If this value is greater than 1, an event loop might attempt to read multiple times to procure multiple messages.
    
    Specified by:
    
    setMaxMessagesPerRead in interface ChannelConfig
  - setWriteSpinCount
```
SocketChannelConfig setWriteSpinCount(int writeSpinCount)
```
    Description copied from interface: ChannelConfig
    
    Sets the maximum loop count for a write operation until WritableByteChannel.write(ByteBuffer) returns a non-zero value. It is similar to what a spin lock is used for in concurrency programming. It improves memory utilization and write throughput depending on the platform that JVM runs on. The default value is 16.
    
    Specified by:
    
    setWriteSpinCount in interface ChannelConfig
  - setAllocator
```
SocketChannelConfig setAllocator(ByteBufAllocator allocator)
```
    Description copied from interface: ChannelConfig
    
    Set the ByteBufAllocator which is used for the channel to allocate buffers.
    
    Specified by:
    
    setAllocator in interface ChannelConfig
  - setRecvByteBufAllocator
```
SocketChannelConfig setRecvByteBufAllocator(RecvByteBufAllocator allocator)
```
    Description copied from interface: ChannelConfig
    
    Set the ByteBufAllocator which is used for the channel to allocate receive buffers.
    
    Specified by:
    
    setRecvByteBufAllocator in interface ChannelConfig
  - setAutoRead
```
SocketChannelConfig setAutoRead(boolean autoRead)
```
    Description copied from interface: ChannelConfig
    
    Sets if ChannelHandlerContext.read() will be invoked automatically so that a user application doesn't need to call it at all. The default value is true.
    
    Specified by:
    
    setAutoRead in interface ChannelConfig
  - setAutoClose
```
SocketChannelConfig setAutoClose(boolean autoClose)
```
    Specified by:
    
    setAutoClose in interface ChannelConfig
  - setMessageSizeEstimator
```
SocketChannelConfig setMessageSizeEstimator(MessageSizeEstimator estimator)
```
    Description copied from interface: ChannelConfig
    
    Set the MessageSizeEstimator which is used for the channel to detect the size of a message.
    
    Specified by:
    
    setMessageSizeEstimator in interface ChannelConfig

Interface SocketChannelConfig

Available options

Method Summary

Methods inherited from interface io.netty.channel.ChannelConfig

Method Detail

isTcpNoDelay

setTcpNoDelay

getSoLinger

setSoLinger

getSendBufferSize

setSendBufferSize

getReceiveBufferSize

setReceiveBufferSize

isKeepAlive

setKeepAlive

getTrafficClass

setTrafficClass

isReuseAddress

setReuseAddress

setPerformancePreferences

isAllowHalfClosure

setAllowHalfClosure

setConnectTimeoutMillis

setMaxMessagesPerRead

setWriteSpinCount

setAllocator

setRecvByteBufAllocator

setAutoRead

setAutoClose

setMessageSizeEstimator