org.apache.mina.handler.chain
Class IoHandlerChain

java.lang.Object
  org.apache.mina.handler.chain.IoHandlerChain

All Implemented Interfaces:

IoHandlerCommand

public class IoHandlerChain
extends Object
implements IoHandlerCommand

A chain of IoHandlerCommands.

Version:

$Rev: 671827 $, $Date: 2008-06-26 10:49:48 +0200 (jeu, 26 jun 2008) $

Author:

The Apache MINA Project (dev@mina.apache.org)

Nested Class Summary

class

IoHandlerChain.Entry Represents a name-command pair that an IoHandlerChain contains.

Nested classes/interfaces inherited from interface org.apache.mina.handler.chain.IoHandlerCommand

IoHandlerCommand.NextCommand

Constructor Summary

IoHandlerChain()
Creates a new, empty chain of IoHandlerCommands.

Method Summary

void	addAfter(String baseName, String name, IoHandlerCommand command)
void	addBefore(String baseName, String name, IoHandlerCommand command)
void	addFirst(String name, IoHandlerCommand command)
void	addLast(String name, IoHandlerCommand command)
void	clear()
boolean	contains(Class<? extends IoHandlerCommand> commandType)
boolean	contains(IoHandlerCommand command)
boolean	contains(String name)
void	execute(IoHandlerCommand.NextCommand next, IoSession session, Object message) Execute a unit of processing work to be performed.
IoHandlerCommand	get(String name)
List<IoHandlerChain.Entry>	getAll()
List<IoHandlerChain.Entry>	getAllReversed()
IoHandlerChain.Entry	getEntry(String name)
IoHandlerCommand.NextCommand	getNextCommand(String name)
IoHandlerCommand	remove(String name)
String	toString()

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

IoHandlerChain

public IoHandlerChain()

Creates a new, empty chain of IoHandlerCommands.

Method Detail

getEntry

public IoHandlerChain.Entry getEntry(String name)

get

public IoHandlerCommand get(String name)

getNextCommand

public IoHandlerCommand.NextCommand getNextCommand(String name)

addFirst

public void addFirst(String name,
                     IoHandlerCommand command)

addLast

public void addLast(String name,
                    IoHandlerCommand command)

addBefore

public void addBefore(String baseName,
                      String name,
                      IoHandlerCommand command)

addAfter

public void addAfter(String baseName,
                     String name,
                     IoHandlerCommand command)

remove

public IoHandlerCommand remove(String name)

clear

public void clear()
           throws Exception

Throws:

Exception

execute

public void execute(IoHandlerCommand.NextCommand next,
                    IoSession session,
                    Object message)
             throws Exception

Description copied from interface: IoHandlerCommand

Execute a unit of processing work to be performed. This IoHandlerCommand may either complete the required processing and just return to stop the processing, or delegate remaining processing to the next IoHandlerCommand in a IoHandlerChain containing this IoHandlerCommand by calling IoHandlerCommand.NextCommand.execute(IoSession,Object).

Specified by:

execute in interface IoHandlerCommand

Parameters:

next - an indirect reference to the next IoHandlerCommand that provides a way to forward the request to the next IoHandlerCommand.

session - the IoSession which is associated with this request

message - the message object of this request

Throws:

Exception - general purpose exception return to indicate abnormal termination

getAll

public List<IoHandlerChain.Entry> getAll()

getAllReversed

public List<IoHandlerChain.Entry> getAllReversed()

contains

public boolean contains(String name)

contains

public boolean contains(IoHandlerCommand command)

contains

public boolean contains(Class<? extends IoHandlerCommand> commandType)

toString

public String toString()

Overrides:

toString in class Object