com.ibm.etools.systems.application.visual.editor.commands
Class SetConnectionLayerRouterCommand

java.lang.Object
  Command
      com.ibm.etools.systems.application.visual.editor.commands.SetConnectionLayerRouterCommand

public class SetConnectionLayerRouterCommand
extends Command

Command to set router in connection layer level.

Field Summary

protected ConnectionLayer	connectionLayer
static String	copyright
protected ConnectionRouter	newRouter
protected ConnectionRouter	oldRouter

Constructor Summary

SetConnectionLayerRouterCommand(ConnectionLayer connectionLayer, ConnectionRouter newRouter, String label)

Method Summary

boolean	canExecute()
boolean	canUndo()
void	execute() executes the Command.
ConnectionRouter	getNewRouter() Get old ruter
ConnectionRouter	getOldRouter() Get old ruter
protected boolean	isDifferentRouter() Return true if the new router is different with the existing router.
void	redo() Re-executes the Command.
void	undo() Undoes the changes performed during execute().

Methods inherited from class java.lang.Object

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

Field Detail

copyright

public static final String copyright

See Also:

Constant Field Values

connectionLayer

protected ConnectionLayer connectionLayer

oldRouter

protected ConnectionRouter oldRouter

newRouter

protected ConnectionRouter newRouter

Constructor Detail

SetConnectionLayerRouterCommand

public SetConnectionLayerRouterCommand(ConnectionLayer connectionLayer,
                                       ConnectionRouter newRouter,
                                       String label)

Method Detail

execute

public void execute()

executes the Command. This method should not be called if the Command is not executable.

isDifferentRouter

protected boolean isDifferentRouter()

Return true if the new router is different with the existing router.

getOldRouter

public ConnectionRouter getOldRouter()

Get old ruter

getNewRouter

public ConnectionRouter getNewRouter()

Get old ruter

canExecute

public boolean canExecute()

Returns:

true if the command can be executed

canUndo

public boolean canUndo()

Returns:

true if the command can be undone. This method should only be called after execute() or redo() has been called.

undo

public void undo()

Undoes the changes performed during execute(). This method should only be called after execute has been called, and only when canUndo() returns true.

See Also:

canUndo()

redo

public void redo()

Re-executes the Command. This method should only be called after undo() has been called.