Package org.eclipse.emf.compare.command

Class DelegatingCommandStack

java.lang.Object

com.google.common.collect.ForwardingObject

org.eclipse.emf.compare.command.DelegatingCommandStack

All Implemented Interfaces:

CommandStack

Direct Known Subclasses:

CompareCommandStack

public abstract class DelegatingCommandStack
extends com.google.common.collect.ForwardingObject
implements CommandStack

Abstract implementation that forward method calls to a delegatating CommandStack.

Since:

4.0

Constructor Summary

Constructors

Constructor	Description
DelegatingCommandStack()	Default constructor.

Method Summary

Modifier and Type	Method	Description
void	addCommandStackListener(CommandStackListener listener)
boolean	canRedo()
boolean	canUndo()
protected abstract CommandStack	delegate()	Returns the backing delegate instance that methods are forwarded to.
void	execute(Command command)
void	flush()
Command	getMostRecentCommand()
Command	getRedoCommand()
Command	getUndoCommand()
protected void	notifyListeners(Object source)	This is called to ensure that CommandStackListener.commandStackChanged(java.util.EventObject) is called for each listener.
void	redo()
void	removeCommandStackListener(CommandStackListener listener)
void	undo()

Methods inherited from class com.google.common.collect.ForwardingObject

toString

Methods inherited from class java.lang.Object

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

Constructor Details

DelegatingCommandStack

public DelegatingCommandStack()

Default constructor.

Method Details

delegate

protected abstract CommandStack delegate()

Returns the backing delegate instance that methods are forwarded to.

Specified by:

delegate in class com.google.common.collect.ForwardingObject

Returns:

the backing delegate instance that methods are forwarded to.

execute

public void execute(Command command)

Specified by:

execute in interface CommandStack

See Also:

• CommandStack.execute(org.eclipse.emf.common.command.Command)

canUndo

public boolean canUndo()

Specified by:

canUndo in interface CommandStack

See Also:

• CommandStack.canUndo()

undo

public void undo()

Specified by:

undo in interface CommandStack

See Also:

• CommandStack.undo()

canRedo

public boolean canRedo()

Specified by:

canRedo in interface CommandStack

See Also:

• CommandStack.canRedo()

getUndoCommand

public Command getUndoCommand()

Specified by:

getUndoCommand in interface CommandStack

See Also:

• CommandStack.getUndoCommand()

getRedoCommand

public Command getRedoCommand()

Specified by:

getRedoCommand in interface CommandStack

See Also:

• CommandStack.getRedoCommand()

getMostRecentCommand

public Command getMostRecentCommand()

Specified by:

getMostRecentCommand in interface CommandStack

See Also:

• CommandStack.getMostRecentCommand()

redo

public void redo()

Specified by:

redo in interface CommandStack

See Also:

• CommandStack.redo()

flush

public void flush()

Specified by:

flush in interface CommandStack

See Also:

• CommandStack.flush()

addCommandStackListener

public void addCommandStackListener(CommandStackListener listener)

Specified by:

addCommandStackListener in interface CommandStack

See Also:

• CommandStack.addCommandStackListener(org.eclipse.emf.common.command.CommandStackListener)

removeCommandStackListener

public void removeCommandStackListener(CommandStackListener listener)

Specified by:

removeCommandStackListener in interface CommandStack

See Also:

• CommandStack.removeCommandStackListener(org.eclipse.emf.common.command.CommandStackListener)

notifyListeners

protected void notifyListeners(Object source)

This is called to ensure that CommandStackListener.commandStackChanged(java.util.EventObject) is called for each listener.

Parameters:

source - the source of the notification