CacheWriter

```
public interface CacheWriter
```
The cache writer is called by the cache to persist changed data that needs to be removed from the cache.

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`void`	`flushLog()`	Flush the transaction log, so that entries can be removed from the cache.
`Trace`	`getTrace()`	Get the trace writer.
`void`	`writeBack(CacheObject entry)`	Persist a record.

- Method Detail
  - writeBack
```
void writeBack(CacheObject entry)
```
    Persist a record.
    
    Parameters:
    
    entry - the cache entry
  - flushLog
```
void flushLog()
```
    Flush the transaction log, so that entries can be removed from the cache. This is only required if the cache is full and contains data that is not yet written to the log. It is required to write the log entries to the log first, because the log is 'write ahead'.
  - getTrace
```
Trace getTrace()
```
    Get the trace writer.
    
    Returns:
    
    the trace writer