Package jetbrains.mps.smodel

Class SNodeUndoableAction

java.lang.Object

jetbrains.mps.smodel.SNodeUndoableAction

public abstract class SNodeUndoableAction
extends Object

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	SNodeUndoableAction.VFSChange

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	SNodeUndoableAction(SNode affectedNode)

Method Summary

Modifier and Type	Method	Description
protected abstract void	doRedo()
protected abstract void	doUndo()
SNode	getAffectedNode()
SNodeUndoableAction.VFSChange	getAssociatedVfsChange()	Some SNodeUndoableActions may cause VFS state change.
boolean	hasVirtualFile()	Deprecated. since MPS 2017.3 all undo actions are associated with virtual files.
boolean	isGlobal()	Deprecated. since MPS 2017.3 use getAssociatedVfsChange() instead.
void	redo()
void	undo()

Methods inherited from class java.lang.Object

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

Constructor Detail

SNodeUndoableAction

protected SNodeUndoableAction(SNode affectedNode)

Method Detail

getAffectedNode

public SNode getAffectedNode()

hasVirtualFile

@Deprecated
public boolean hasVirtualFile()

Deprecated.

since MPS 2017.3 all undo actions are associated with virtual files. Not used anymore.

getAssociatedVfsChange

public SNodeUndoableAction.VFSChange getAssociatedVfsChange()

Some SNodeUndoableActions may cause VFS state change. For example, new root node creation may potentially cause new VirtualFile creation. Root deletion, in turn, VirtualFile deletion. Such actions should return corresponding SNodeUndoableAction.VFSChange member in order to indicate that VFS state may require update during undo/redo operations for such actions.

It is supposed that only single file may be affected by such actions. This means, there is only one (same) virtual file available in NodeVirtualFileSystem for the node (all nodes), returned from UndoContext.getVirtualFileNodes() for such actions.

Returns:

FILE_CREATED or FILE_DELETED for AddRootUndoableAction or RemoveRootUndoableAction in accordance.

doUndo

protected abstract void doUndo()

doRedo

protected abstract void doRedo()

undo

public final void undo()

redo

public final void redo()

isGlobal

@Deprecated
public boolean isGlobal()

Deprecated.

since MPS 2017.3 use getAssociatedVfsChange() instead.