Package org.apache.jackrabbit.oak.commons.jmx

Class AbstractCheckpointMBean

java.lang.Object

org.apache.jackrabbit.oak.commons.jmx.AbstractCheckpointMBean

All Implemented Interfaces:

CheckpointMBean

Direct Known Subclasses:

CompositeCheckpointMBean, DocumentCheckpointMBean, SegmentCheckpointMBean

public abstract class AbstractCheckpointMBean
extends Object
implements CheckpointMBean

Abstract base class for CheckpointMBean implementations. This class provides the basic functionality for converting checkpoints into tabular data.

Field Summary

Fields inherited from interface org.apache.jackrabbit.oak.api.jmx.CheckpointMBean

TYPE

Constructor Summary

Constructors

Constructor	Description
AbstractCheckpointMBean()

Method Summary

Modifier and Type	Method	Description
protected abstract void	collectCheckpoints(TabularDataSupport tab)	Called to collect the tabular data for the checkpoints.
Date	getOldestCheckpointCreationDate()
abstract long	getOldestCheckpointCreationTimestamp()
TabularData	listCheckpoints()	List the checkpoints that are currently present along with its id, creation time and expiry time.
protected CompositeDataSupport	toCompositeData(String id, String created, String expires, Map<String,String> properties)	Utility method for converting the fields associated with a checkpoint to the composite data format.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface org.apache.jackrabbit.oak.api.jmx.CheckpointMBean

createCheckpoint, releaseCheckpoint

Constructor Detail

AbstractCheckpointMBean

public AbstractCheckpointMBean()

Method Detail

collectCheckpoints

protected abstract void collectCheckpoints(TabularDataSupport tab)
                                    throws OpenDataException

Called to collect the tabular data for the checkpoints. Each checkpoint should be represented by a single row in tab. Implementors should use the toCompositeData(java.lang.String, java.lang.String, java.lang.String, java.util.Map<java.lang.String, java.lang.String>) utility method for converting the individual fields associated with a checkpoint into the correct composite data format.

Parameters:

tab -

Throws:

OpenDataException

listCheckpoints

public TabularData listCheckpoints()

Description copied from interface: CheckpointMBean

List the checkpoints that are currently present along with its id, creation time and expiry time.

Specified by:

listCheckpoints in interface CheckpointMBean

Returns:

getOldestCheckpointCreationTimestamp

public abstract long getOldestCheckpointCreationTimestamp()

Specified by:

getOldestCheckpointCreationTimestamp in interface CheckpointMBean

Returns:

creation timestamp of oldest checkpoint.

getOldestCheckpointCreationDate

public Date getOldestCheckpointCreationDate()

Specified by:

getOldestCheckpointCreationDate in interface CheckpointMBean

Returns:

creation date of oldest checkpoint.

toCompositeData

protected final CompositeDataSupport toCompositeData(String id,
                                                     String created,
                                                     String expires,
                                                     Map<String,String> properties)
                                              throws OpenDataException

Utility method for converting the fields associated with a checkpoint to the composite data format.

Parameters:

id - id of the checkpoint

created - creation data of the checkpoint

expires - expiry data of the checkpoint

Returns:

composite data representation of the fields associated with the checkpoint

Throws:

OpenDataException