jimm.datavision.gui.cmd
Class UserColumnEditCommand

java.lang.Object
  extended by jimm.datavision.gui.cmd.CommandAdapter
      extended by jimm.datavision.gui.cmd.UserColumnEditCommand
All Implemented Interfaces:
Command, Nameable

public class UserColumnEditCommand
extends CommandAdapter

A command for changing a UserColumn's code text.

Author:
Jim Menard, jimm@io.com

Field Summary
protected  java.lang.String newExpression
           
protected  java.lang.String oldExpression
           
protected  UserColumn userColumn
           
 
Fields inherited from class jimm.datavision.gui.cmd.CommandAdapter
name
 
Constructor Summary
UserColumnEditCommand(UserColumn userColumn, java.lang.String expression)
           
 
Method Summary
 void perform()
          Performs the command.
 void undo()
          Undoes the command.
 
Methods inherited from class jimm.datavision.gui.cmd.CommandAdapter
getName, redo, setName
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Field Detail

userColumn

protected UserColumn userColumn

newExpression

protected java.lang.String newExpression

oldExpression

protected java.lang.String oldExpression
Constructor Detail

UserColumnEditCommand

public UserColumnEditCommand(UserColumn userColumn,
                             java.lang.String expression)
Method Detail

perform

public void perform()
Description copied from class: CommandAdapter
Performs the command. The default implementation does nothing.

Specified by:
perform in interface Command
Overrides:
perform in class CommandAdapter

undo

public void undo()
Description copied from class: CommandAdapter
Undoes the command. The default implementation does nothing.

Specified by:
undo in interface Command
Overrides:
undo in class CommandAdapter