PersistentHistory

All Superinterfaces:

History, java.lang.Iterable<History.Entry>

All Known Implementing Classes:

FileHistory
```
public interface PersistentHistory
extends History
```
Persistent History.

Since:

2.3

Author:

Jason Dillon

Nested Class Summary
- Nested classes/interfaces inherited from interface jline.console.history.History
  History.Entry

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`void`	`flush()`	Flush all items to persistent storage.
`void`	`purge()`	Purge persistent storage and `History.clear()`.

Methods inherited from interface jline.console.history.History
add, clear, current, entries, entries, get, index, isEmpty, iterator, moveTo, moveToEnd, moveToFirst, moveToLast, next, previous, remove, removeFirst, removeLast, replace, set, size

Methods inherited from interface java.lang.Iterable
forEach, spliterator

- Method Detail
  - flush
```
void flush()
    throws java.io.IOException
```
    Flush all items to persistent storage.
    
    Throws:
    
    java.io.IOException - Flush failed
  - purge
```
void purge()
    throws java.io.IOException
```
    Purge persistent storage and History.clear().
    
    Throws:
    
    java.io.IOException - Purge failed