jimm.datavision.gui.cmd
Class CommandAdapter

java.lang.Object
  jimm.datavision.gui.cmd.CommandAdapter

All Implemented Interfaces:

Command, Nameable

Direct Known Subclasses:

AbstractAggregateCommand, BoundsCommand, CompoundCommand, DbConnCommand, DeleteCommand, DeleteGroupCommand, DeleteSectionCommand, EditAggregateFuncCommand, FieldAlignCommand, FieldMoveCommand, FieldResizeCommand, FieldShowHideCommand, FieldStretchCommand, FormatCommand, FormulaEditCommand, FPDeleteCommand, GroupEditCommand, InsertFieldCommand, NameableRenameCommand, NewGroupCommand, NewSectionCommand, PaperSizeCommand, ParamEditCommand, PasteCommand, ReportStartupScriptEditCommand, ScriptingCommand, SectionPageBreakCommand, SectionResizeCommand, SortEditCommand, SummaryCommand, SuppressionProcEditCommand, TableJoinCommand, TypingCommand, UserColumnEditCommand, WhereClauseEditCommand, WidgetRenameCommand

public abstract class CommandAdapter
extends java.lang.Object
implements Command

An abstract adapter class for performing a command. It exists as a convenience for creating command objects. The perform and undo methods in this class are empty. redo calls perform. The getName method provides read-only access to the name provided at construction time. The setName method does nothing.

Author:

Jim Menard, jimm@io.com

Field Summary

protected java.lang.String

name

Constructor Summary

CommandAdapter(java.lang.String name)

Method Summary

java.lang.String	getName() Returns the name.
void	perform() Performs the command.
void	redo() Redoes the command by calling perform().
void	setName(java.lang.String name) A command's name is immutable.
void	undo() Undoes the command.

Methods inherited from class java.lang.Object

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

Field Detail

name

protected java.lang.String name

Constructor Detail

CommandAdapter

public CommandAdapter(java.lang.String name)

Method Detail

getName

public java.lang.String getName()

Description copied from interface: Nameable

Returns the name.

Specified by:

getName in interface Nameable

setName

public void setName(java.lang.String name)

A command's name is immutable.

Specified by:

setName in interface Nameable

Parameters:

name - the new name

perform

public void perform()

Performs the command. The default implementation does nothing.

Specified by:

perform in interface Command

undo

public void undo()

Undoes the command. The default implementation does nothing.

Specified by:

undo in interface Command

redo

public void redo()

Redoes the command by calling perform().

Specified by:

redo in interface Command