IDvrPurgeController (Wowza Streaming Engine 4 API)

```
public interface IDvrPurgeController
```
Interface for controlling DVR chunk purging. The purge controller is instantiated using a factory class DvrPurgeControllerFactory.

See Also:

DvrPurgeControllerFactory, IDvrPrivateConstants.PROPERTY_PURGE_CONTROL_CLASS

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`long`	`getCurrentTime()`	Get current DVR time.
`long`	`getLastPurgeTime()`	Get the DVR time when the last purge occurred.
`void`	`init(IDvrStreamStore store)`	Initialize the controller.
`boolean`	`isPurgingEnabled()`	Is Purging enabled for this controller.
`void`	`setCurrentDvrTime(long newDvrTime)`	Set the current DVR time and perform purge if necessary.

- Method Detail
  - init
```
void init(IDvrStreamStore store)
```
    Initialize the controller.
    
    Parameters:
    
    store - the DVR stream store
  - isPurgingEnabled
```
boolean isPurgingEnabled()
```
    Is Purging enabled for this controller.
    
    Returns:
    
    true if purging is active, false otherwise.
  - setCurrentDvrTime
```
void setCurrentDvrTime(long newDvrTime)
```
    Set the current DVR time and perform purge if necessary. This method checks the DVR time against its internal rules for purging and performs the purge. It is also responsible for setting the last purge time and the next purge time.
    
    Parameters:
    
    newDvrTime -
  - getCurrentTime
```
long getCurrentTime()
```
    Get current DVR time. The store is responsible for setting the DVR time via setCurrentDvrTime.
    
    Returns:
    
    current DVR time.
  - getLastPurgeTime
```
long getLastPurgeTime()
```
    Get the DVR time when the last purge occurred.
    
    Returns:
    
    DVR time of last purge