javax.activation
Class CommandInfo

java.lang.Object
  javax.activation.CommandInfo

public class CommandInfo

extends java.lang.Object

Version:

$Rev: 123383 $ $Date: 2004-12-26 20:11:00 -0700 (Sun, 26 Dec 2004) $

Field Summary

private java.lang.String	commandClass
private java.lang.String	commandName

Constructor Summary

CommandInfo(java.lang.String commandName, java.lang.String commandClass)
Constructor for a CommandInfo

Method Summary

java.lang.String	getCommandClass() Return the implementation class name.
java.lang.String	getCommandName() Return the command name.
java.lang.Object	getCommandObject(DataHandler dh, java.lang.ClassLoader loader) Instantiate and return a command JavaBean.

Methods inherited from class java.lang.Object

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

Field Detail

commandName

private final java.lang.String commandName

commandClass

private final java.lang.String commandClass

Constructor Detail

CommandInfo

public CommandInfo(java.lang.String commandName,
                   java.lang.String commandClass)

Constructor for a CommandInfo

Parameters:

commandName - the command name

commandClass - the name of the command's implementation class

Method Detail

getCommandName

public java.lang.String getCommandName()

Return the command name.

Returns:

the command name

getCommandClass

public java.lang.String getCommandClass()

Return the implementation class name.

Returns:

the name of the command's implementation class; may be null

getCommandObject

public java.lang.Object getCommandObject(DataHandler dh,
                                         java.lang.ClassLoader loader)
                                  throws java.io.IOException,
                                         java.lang.ClassNotFoundException

Instantiate and return a command JavaBean. The bean is created using Beans.instantiate(loader, commandClass). If the new bean implements CommandObject then its setCommandContext(String, DataHandler) method is called. Otherwise if it implements Externalizable and the supplied DataHandler is not null then its readExternal(ObjectInputStream) method is called with a stream obtained from DataHandler.getInputStream().

Parameters:

dh - a DataHandler that provides the data to be passed to the command

loader - the ClassLoader to be used to instantiate the command

Returns:

a new command instance

Throws:

java.io.IOException - if there was a problem initializing the command

java.lang.ClassNotFoundException - if the command class could not be found