ChangeLog (Apache Jackrabbit 2.23.1-beta API)

java.lang.Object
- org.apache.jackrabbit.jcr2spi.state.ChangeLog

```
public class ChangeLog
extends Object
```
Registers changes made to states and references and consolidates empty changes.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`Set<ItemState>`	`getAffectedStates()`
`Set<Operation>`	`getOperations()`
`ItemState`	`getTarget()`
`boolean`	`isEmpty()`
`void`	`persisted()`	Call this method when this change log has been successfully persisted.
`void`	`undo()`	Revert the changes listed within this changelog

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

- Method Detail
  - persisted
```
public void persisted()
               throws RepositoryException
```
    Call this method when this change log has been successfully persisted. This implementation will call Operation.persisted() on the individual operations followed by setting all remaining modified states to EXISTING.
    
    Throws:
    
    RepositoryException
  - undo
```
public void undo()
          throws RepositoryException
```
    Revert the changes listed within this changelog
    
    Throws:
    
    RepositoryException
  - getTarget
```
public ItemState getTarget()
```
    Returns:
    
    the target state
  - isEmpty
```
public boolean isEmpty()
```
    Returns:
    
    true if no operations are present.
  - getOperations
```
public Set<Operation> getOperations()
```
    Returns:
    
    set of operations.
  - getAffectedStates
```
public Set<ItemState> getAffectedStates()
```
    Returns:
    
    set of the affected states.