Package org.apache.zookeeper.server

Class DataTreeBean

java.lang.Object

org.apache.zookeeper.server.DataTreeBean

All Implemented Interfaces:

ZKMBeanInfo, DataTreeMXBean

public class DataTreeBean
extends Object
implements DataTreeMXBean, ZKMBeanInfo

This class implements the data tree MBean.

Constructor Summary

Constructors

Constructor	Description
DataTreeBean(DataTree dataTree)

Method Summary

Modifier and Type	Method	Description
long	approximateDataSize()
int	countEphemerals()
String	getLastZxid()
String	getName()
int	getNodeCount()
int	getWatchCount()
boolean	isHidden()	If isHidden returns true, the MBean won't be registered with MBean server, and thus won't be available for management tools.

Methods inherited from class java.lang.Object

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

Constructor Detail

DataTreeBean

public DataTreeBean(DataTree dataTree)

Method Detail

getNodeCount

public int getNodeCount()

Specified by:

getNodeCount in interface DataTreeMXBean

Returns:

number of znodes in the data tree.

approximateDataSize

public long approximateDataSize()

Specified by:

approximateDataSize in interface DataTreeMXBean

Returns:

data tree size in bytes. The size includes the znode path and its value.

countEphemerals

public int countEphemerals()

Specified by:

countEphemerals in interface DataTreeMXBean

Returns:

number of ephemeral nodes in the data tree

getWatchCount

public int getWatchCount()

Specified by:

getWatchCount in interface DataTreeMXBean

Returns:

number of watches set.

getName

public String getName()

Specified by:

getName in interface ZKMBeanInfo

Returns:

a string identifying the MBean

isHidden

public boolean isHidden()

Description copied from interface: ZKMBeanInfo

If isHidden returns true, the MBean won't be registered with MBean server, and thus won't be available for management tools. Used for grouping MBeans.

Specified by:

isHidden in interface ZKMBeanInfo

Returns:

true if the MBean is hidden.

getLastZxid

public String getLastZxid()

Specified by:

getLastZxid in interface DataTreeMXBean

Returns:

the most recent zxid processed by the data tree.