org.opencms.scheduler.jobs
Class CmsHistoryClearJob

java.lang.Object
  extended by org.opencms.scheduler.jobs.CmsHistoryClearJob
All Implemented Interfaces:
I_CmsScheduledJob

public class CmsHistoryClearJob
extends java.lang.Object
implements I_CmsScheduledJob

A schedulable OpenCms job to clear the history.

The user to execute the process should have have access to the required "Workplace manager" role.

If there is an Uri set for the scheduled job, which should only be folders, it will be used for clearing the history only in there (and the subfolders).

Job parameters:

keepVersions={Number/Integer}
Number/Integer to control how many versions will be kept.
clearDeleted=true|false
Boolean to configure if the versions of deleted resources should be cleared. The default is false.
keepTimeRange
Number/Integer to configure the number of days the versions of deleted resources will be kept. That means that all versions wich are older than the specified number will be deleted. This parameter is optional and only makes sense if the clearDeleted parameter is set to true.

Since:
7.0.0
Version:
$Revision: 1.7 $
Author:
Peter Bonrad

Field Summary
static java.lang.String PARAM_CLEARDELETED
          Name of the parameter where to configure if versions of deleted resources are cleared.
static java.lang.String PARAM_KEEPTIMERANGE
          Name of the parameter where to configure the number of days the versions will be kept.
static java.lang.String PARAM_KEEPVERSIONS
          Name of the parameter where to configure how many versions are kept.
 
Constructor Summary
CmsHistoryClearJob()
           
 
Method Summary
 java.lang.String launch(CmsObject cms, java.util.Map parameters)
          This method will be called when this scheduled job is executed.
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Field Detail

PARAM_KEEPVERSIONS

public static final java.lang.String PARAM_KEEPVERSIONS
Name of the parameter where to configure how many versions are kept.

See Also:
Constant Field Values

PARAM_CLEARDELETED

public static final java.lang.String PARAM_CLEARDELETED
Name of the parameter where to configure if versions of deleted resources are cleared.

See Also:
Constant Field Values

PARAM_KEEPTIMERANGE

public static final java.lang.String PARAM_KEEPTIMERANGE
Name of the parameter where to configure the number of days the versions will be kept.

See Also:
Constant Field Values
Constructor Detail

CmsHistoryClearJob

public CmsHistoryClearJob()
Method Detail

launch

public java.lang.String launch(CmsObject cms,
                               java.util.Map parameters)
                        throws java.lang.Exception
Description copied from interface: I_CmsScheduledJob
This method will be called when this scheduled job is executed.

Depending on the configuration of this job, a new instance of the configured class will be instantiated every time the job is launched, or a new instance will be generated only the first time the job is launched, and re-used afterwards.

The result String will be written to the OpenCms logfile in the org.opencms.scheduler.CmsScheduleManager channel, on INFO log level.

Specified by:
launch in interface I_CmsScheduledJob
Parameters:
cms - will be initialized with the configured users cms context
parameters - the configured parameters
Returns:
a String that will be written to the OpenCms logfile
Throws:
java.lang.Exception - if something goes wrong
See Also:
I_CmsScheduledJob.launch(org.opencms.file.CmsObject, java.util.Map)