UndoManagerImpl.UndoPositionImpl

java.lang.Object
- org.fxmisc.undo.impl.UndoManagerImpl.UndoPositionImpl

All Implemented Interfaces:: UndoManager.UndoPosition

Enclosing class:: UndoManagerImpl<C>

private class UndoManagerImpl.UndoPositionImpl
extends java.lang.Object
implements UndoManager.UndoPosition

Field Summary

Fields
Modifier and Type Field Description

private ChangeQueue.QueuePosition queuePos

Constructor Summary

Constructors
Constructor Description

UndoPositionImpl(ChangeQueue.QueuePosition queuePos)

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`boolean`	`isValid()`	Checks whether this history position is still valid.
`void`	`mark()`	Sets the mark of the underlying UndoManager at this position.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Field Detail
  - queuePos
```
private final ChangeQueue.QueuePosition queuePos
```
- Constructor Detail
  - UndoPositionImpl
```
UndoPositionImpl(ChangeQueue.QueuePosition queuePos)
```
- Method Detail
  - mark
```
public void mark()
```
    Description copied from interface: UndoManager.UndoPosition
    
    Sets the mark of the underlying UndoManager at this position. The mark is set whether or not this position is valid. It is OK for an UndoManager to be marked at an invalid position.
    
    Specified by:
    
    mark in interface UndoManager.UndoPosition
  - isValid
```
public boolean isValid()
```
    Description copied from interface: UndoManager.UndoPosition
    Checks whether this history position is still valid. A position becomes invalid when
    
    the change immediately preceding the position is undone and then discarded due to another incoming change; or
    
    the change immediately following the position is forgotten due to history size limit.
    Specified by:
    
    isValid in interface UndoManager.UndoPosition