tweed.invocation
Class CommandExecutor

java.lang.Object
  |
  +--tweed.invocation.CommandExecutor

public class CommandExecutor

extends java.lang.Object

This class helps the server executing a Command object with only its ExternalizedCommand as input/output parameter. It is intended only to be used when implementing a connectivity layer between client and server. Command implementors should not manipulate this class directly.

Version:

$Id$

Author:

Laurent Caillette

Constructor Summary

CommandExecutor(Context context)

Method Summary

Command	createCommand(java.lang.Class commandClass) Creates a new Command instance correctly configured.
void	execute(ExternalizedCommand externalizedCommand)
protected java.lang.String	getChildLoggerName() Returns the name of the child logger of Context's logger.
protected Context	getContext()
protected org.apache.avalon.framework.logger.Logger	getLogger()

Methods inherited from class java.lang.Object

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

Constructor Detail

CommandExecutor

public CommandExecutor(Context context)

Method Detail

getContext

protected final Context getContext()

getLogger

protected final org.apache.avalon.framework.logger.Logger getLogger()

getChildLoggerName

protected java.lang.String getChildLoggerName()

Returns the name of the child logger of Context's logger.

Returns:

the "command-executor" String.

execute

public void execute(ExternalizedCommand externalizedCommand)

createCommand

public Command createCommand(java.lang.Class commandClass)

Creates a new Command instance correctly configured. The exact behavior of a Command depends if the context is set to Client-side or Server-side.

Parameters:

commandClass - the concrete class of the Command to instantiate, cannot be null.

Returns:

a non-null Command instance.

Throws:

java.lang.RuntimeException - (wrapping an instantiation-related exception) if instantiation failed for some reason.