| Package | Description | 
|---|---|
| oracle.ide.history | Contains API classes for the local history feature. | 
| oracle.ide.model | Contains interfaces and classes implementing JDeveloper's data model. | 
| Modifier and Type | Method and Description | 
|---|---|
| abstract void | HistoryManager. registerHistorian(MetaClass<? extends Historian> historianCls,
                 MetaClass<? extends Node> objCls)Register a Historian implementation for association with a given object
 type. | 
| Modifier and Type | Class and Description | 
|---|---|
| class  | TextNodeHistorianTextNodeHistorian is a subclass of Historian which has been optimized
 for working with the TextBuffer storage of a TextNode while taking into
 account the expected save encoding. |