Bootstrap (The Netty Project API Reference (3.6.10.Final))

java.lang.Object
- org.jboss.netty.bootstrap.Bootstrap

All Implemented Interfaces:

ExternalResourceReleasable

Direct Known Subclasses:

ClientBootstrap, ConnectionlessBootstrap, ServerBootstrap
```
public class Bootstrap
extends Object
implements ExternalResourceReleasable
```
A helper class which initializes a Channel. This class provides the common data structure for its subclasses which actually initialize Channels and their child Channels using the common data structure. Please refer to ClientBootstrap, ServerBootstrap, and ConnectionlessBootstrap for client side, server-side, and connectionless (e.g. UDP) channel initialization respectively.

Constructor Summary

Constructors
Modifier	Constructor and Description
`protected`	`Bootstrap()` Creates a new instance with no `ChannelFactory` set.
`protected`	`Bootstrap(ChannelFactory channelFactory)` Creates a new instance with the specified initial `ChannelFactory`.

Method Summary

Methods
Modifier and Type	Method and Description
`ChannelFactory`	`getFactory()` Returns the `ChannelFactory` that will be used to perform an I/O operation.
`Object`	`getOption(String key)` Returns the value of the option with the specified key.
`Map<String,Object>`	`getOptions()` Returns the options which configures a new `Channel` and its child `Channel`s.
`ChannelPipeline`	`getPipeline()` Returns the default `ChannelPipeline` which is cloned when a new `Channel` is created.
`Map<String,ChannelHandler>`	`getPipelineAsMap()` Dependency injection friendly convenience method for `getPipeline()` which returns the default pipeline of this bootstrap as an ordered map.
`ChannelPipelineFactory`	`getPipelineFactory()` Returns the `ChannelPipelineFactory` which creates a new `ChannelPipeline` for each new `Channel`.
`void`	`releaseExternalResources()` This method simply delegates the call to `ChannelFactory.releaseExternalResources()`.
`void`	`setFactory(ChannelFactory factory)` Sets the `ChannelFactory` that will be used to perform an I/O operation.
`void`	`setOption(String key, Object value)` Sets an option with the specified key and value.
`void`	`setOptions(Map<String,Object> options)` Sets the options which configures a new `Channel` and its child `Channel`s.
`void`	`setPipeline(ChannelPipeline pipeline)` Sets the default `ChannelPipeline` which is cloned when a new `Channel` is created.
`void`	`setPipelineAsMap(Map<String,ChannelHandler> pipelineMap)` Dependency injection friendly convenience method for `setPipeline(ChannelPipeline)` which sets the default pipeline of this bootstrap from an ordered map.
`void`	`setPipelineFactory(ChannelPipelineFactory pipelineFactory)` Sets the `ChannelPipelineFactory` which creates a new `ChannelPipeline` for each new `Channel`.
`void`	`shutdown()` This method simply delegates the call to `ChannelFactory.shutdown()`.

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

- Constructor Detail
  - Bootstrap
```
protected Bootstrap()
```
    Creates a new instance with no ChannelFactory set. setFactory(ChannelFactory) must be called at once before any I/O operation is requested.
  - Bootstrap
```
protected Bootstrap(ChannelFactory channelFactory)
```
    Creates a new instance with the specified initial ChannelFactory.
- Method Detail
  - getFactory
```
public ChannelFactory getFactory()
```
    Returns the ChannelFactory that will be used to perform an I/O operation.
    
    Throws:
    
    IllegalStateException - if the factory is not set for this bootstrap yet. The factory can be set in the constructor or setFactory(ChannelFactory).
  - setFactory
```
public void setFactory(ChannelFactory factory)
```
    Sets the ChannelFactory that will be used to perform an I/O operation. This method can be called only once and can't be called at all if the factory was specified in the constructor.
    
    Throws:
    
    IllegalStateException - if the factory is already set
  - getPipeline
```
public ChannelPipeline getPipeline()
```
    Returns the default ChannelPipeline which is cloned when a new Channel is created. Bootstrap creates a new pipeline which has the same entries with the returned pipeline for a new Channel.
    Please note that this method is a convenience method that works only when 1) you create only one channel from this bootstrap (e.g. one-time client-side or connectionless channel) or 2) all handlers in the pipeline is stateless. You have to use setPipelineFactory(ChannelPipelineFactory) if 1) your pipeline contains a stateful ChannelHandler and 2) one or more channels are going to be created by this bootstrap (e.g. server-side channels).
    
    Returns:
    the default ChannelPipeline
    
    Throws:
    
    IllegalStateException - if setPipelineFactory(ChannelPipelineFactory) was called by a user last time.
  - setPipeline
```
public void setPipeline(ChannelPipeline pipeline)
```
    Sets the default ChannelPipeline which is cloned when a new Channel is created. Bootstrap creates a new pipeline which has the same entries with the specified pipeline for a new channel.
    Calling this method also sets the pipelineFactory property to an internal ChannelPipelineFactory implementation which returns a shallow copy of the specified pipeline.
    Please note that this method is a convenience method that works only when 1) you create only one channel from this bootstrap (e.g. one-time client-side or connectionless channel) or 2) all handlers in the pipeline is stateless. You have to use setPipelineFactory(ChannelPipelineFactory) if 1) your pipeline contains a stateful ChannelHandler and 2) one or more channels are going to be created by this bootstrap (e.g. server-side channels).
  - getPipelineAsMap
```
public Map<String,ChannelHandler> getPipelineAsMap()
```
    Dependency injection friendly convenience method for getPipeline() which returns the default pipeline of this bootstrap as an ordered map.
    Please note that this method is a convenience method that works only when 1) you create only one channel from this bootstrap (e.g. one-time client-side or connectionless channel) or 2) all handlers in the pipeline is stateless. You have to use setPipelineFactory(ChannelPipelineFactory) if 1) your pipeline contains a stateful ChannelHandler and 2) one or more channels are going to be created by this bootstrap (e.g. server-side channels).
    
    Throws:
    
    IllegalStateException - if setPipelineFactory(ChannelPipelineFactory) was called by a user last time.
  - setPipelineAsMap
```
public void setPipelineAsMap(Map<String,ChannelHandler> pipelineMap)
```
    Dependency injection friendly convenience method for setPipeline(ChannelPipeline) which sets the default pipeline of this bootstrap from an ordered map.
    Please note that this method is a convenience method that works only when 1) you create only one channel from this bootstrap (e.g. one-time client-side or connectionless channel) or 2) all handlers in the pipeline is stateless. You have to use setPipelineFactory(ChannelPipelineFactory) if 1) your pipeline contains a stateful ChannelHandler and 2) one or more channels are going to be created by this bootstrap (e.g. server-side channels).
    
    Throws:
    
    IllegalArgumentException - if the specified map is not an ordered map
  - getPipelineFactory
```
public ChannelPipelineFactory getPipelineFactory()
```
    Returns the ChannelPipelineFactory which creates a new ChannelPipeline for each new Channel.
    
    See Also:
    getPipeline()
  - setPipelineFactory
```
public void setPipelineFactory(ChannelPipelineFactory pipelineFactory)
```
    Sets the ChannelPipelineFactory which creates a new ChannelPipeline for each new Channel. Calling this method invalidates the current pipeline property of this bootstrap. Subsequent getPipeline() and getPipelineAsMap() calls will raise IllegalStateException.
    
    See Also:
    setPipeline(ChannelPipeline), setPipelineAsMap(Map)
  - getOptions
```
public Map<String,Object> getOptions()
```
    Returns the options which configures a new Channel and its child Channels. The names of the child Channel options are prepended with "child." (e.g. "child.keepAlive").
  - setOptions
```
public void setOptions(Map<String,Object> options)
```
    Sets the options which configures a new Channel and its child Channels. To set the options of a child Channel, prepend "child." to the option name (e.g. "child.keepAlive").
  - getOption
```
public Object getOption(String key)
```
    Returns the value of the option with the specified key. To retrieve the option value of a child Channel, prepend "child." to the option name (e.g. "child.keepAlive").
    
    Parameters:
    key - the option name
    
    Returns:
    the option value if the option is found. null otherwise.
  - setOption
```
public void setOption(String key,
             Object value)
```
    Sets an option with the specified key and value. If there's already an option with the same key, it is replaced with the new value. If the specified value is null, an existing option with the specified key is removed. To set the option value of a child Channel, prepend "child." to the option name (e.g. "child.keepAlive").
    
    Parameters:
    key - the option name
    value - the option value
  - releaseExternalResources
```
public void releaseExternalResources()
```
    This method simply delegates the call to ChannelFactory.releaseExternalResources().
    
    Specified by:
    
    releaseExternalResources in interface ExternalResourceReleasable
  - shutdown
```
public void shutdown()
```
    This method simply delegates the call to ChannelFactory.shutdown().

Class Bootstrap

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Constructor Detail

Bootstrap

Bootstrap

Method Detail

getFactory

setFactory

getPipeline

setPipeline

getPipelineAsMap

setPipelineAsMap

getPipelineFactory

setPipelineFactory

getOptions

setOptions

getOption

setOption

releaseExternalResources

shutdown