RollingPolicy

ch.qos.logback.core.rolling

Interface RollingPolicy

All Superinterfaces:

LifeCycle

All Known Implementing Classes:

FixedWindowRollingPolicy, RollingPolicyBase, TimeBasedRollingPolicy
```
public interface RollingPolicy
extends LifeCycle
```
A RollingPolicy is responsible for performing the rolling over of the active log file. The RollingPolicy is also responsible for providing the active log file, that is the live file where logging output will be directed.

Method Summary

All Methods

Instance Methods

Abstract Methods
Modifier and Type	Method and Description
`String`	`getActiveFileName()` Get the name of the active log file.
`CompressionMode`	`getCompressionMode()` The compression mode for this policy.
`void`	`rollover()` Rolls over log files according to implementation policy.
`void`	`setParent(FileAppender appender)` This method allows RollingPolicy implementations to be aware of their containing appender.

Methods inherited from interface ch.qos.logback.core.spi.LifeCycle
isStarted, start, stop

- Method Detail
  - rollover
```
void rollover()
       throws RolloverFailure
```
    Rolls over log files according to implementation policy.
    This method is invoked by RollingFileAppender, usually at the behest of its TriggeringPolicy.
    
    Throws:
    
    RolloverFailure - Thrown if the rollover operation fails for any reason.
  - getActiveFileName
```
String getActiveFileName()
```
    Get the name of the active log file.
    With implementations such as TimeBasedRollingPolicy, this method returns a new file name, where the actual output will be sent.
    
    On other implementations, this method might return the FileAppender's file property.
  - getCompressionMode
```
CompressionMode getCompressionMode()
```
    The compression mode for this policy.
    
    Returns:
  - setParent
```
void setParent(FileAppender appender)
```
    This method allows RollingPolicy implementations to be aware of their containing appender.
    
    Parameters:
    
    appender -