com.sun.enterprise.admin.monitor.stats

Interface EJBCacheStats

All Superinterfaces:

javax.management.j2ee.statistics.Stats

public interface EJBCacheStats
extends javax.management.j2ee.statistics.Stats

A Stats interface to represent the statistics exposed by the Enterprise Bean Cache. This is based on the statistics that were exposed in S1AS7.0. An implementation of EJB Cache should provide statistical data by implementing this interface.

Since:

S1AS8.0

Version:

1.0

Author:

Muralidhar Vempaty, Kedar Mhaswade

Method Summary

Modifier and Type	Method and Description
javax.management.j2ee.statistics.BoundedRangeStatistic	getCacheHits() Returns the number of times a user request hits an EJB in associated EJB cache instance, as a CountStatistic.
javax.management.j2ee.statistics.BoundedRangeStatistic	getCacheMisses() Returns the number of times a user request fails to find an EJB in associated EJB cache instance, as a CountStatistic.
javax.management.j2ee.statistics.BoundedRangeStatistic	getNumBeansInCache() Returns total number of EJBs in the associated EJB Cache, as a BoundedRangeStatistic.
javax.management.j2ee.statistics.CountStatistic	getNumExpiredSessionsRemoved() Returns the number of removed Expired Sessions as a CountStatistic.
javax.management.j2ee.statistics.CountStatistic	getNumPassivationErrors() Returns the number of errors in passivating a Stateful Session Bean, as a CountStatistic.
javax.management.j2ee.statistics.CountStatistic	getNumPassivations() Returns the number of passivations of a Stateful Session Bean, as a CountStatistic.
javax.management.j2ee.statistics.CountStatistic	getNumPassivationSuccess() Returns the number of errors in passivating a Stateful Session Bean, as a CountStatistic.

Methods inherited from interface javax.management.j2ee.statistics.Stats

getStatistic, getStatisticNames, getStatistics

Method Detail

getCacheMisses

javax.management.j2ee.statistics.BoundedRangeStatistic getCacheMisses()

Returns the number of times a user request fails to find an EJB in associated EJB cache instance, as a CountStatistic.

Returns:

an instance of BoundedRangeStatistic

getCacheHits

javax.management.j2ee.statistics.BoundedRangeStatistic getCacheHits()

Returns the number of times a user request hits an EJB in associated EJB cache instance, as a CountStatistic.

Returns:

an instance of BoundedRangeStatistic

getNumBeansInCache

javax.management.j2ee.statistics.BoundedRangeStatistic getNumBeansInCache()

Returns total number of EJBs in the associated EJB Cache, as a BoundedRangeStatistic. Note that this returns the various statistical values like maximum and minimum value attained as a part of the return value.

Returns:

an instance of BoundedRangeStatistic

getNumPassivations

javax.management.j2ee.statistics.CountStatistic getNumPassivations()

Returns the number of passivations of a Stateful Session Bean, as a CountStatistic.

Returns:

an instance of CountStatistic

getNumPassivationErrors

javax.management.j2ee.statistics.CountStatistic getNumPassivationErrors()

Returns the number of errors in passivating a Stateful Session Bean, as a CountStatistic. Must be less than or equal to getNumPassivations()

Returns:

an instance of CountStatistic

getNumExpiredSessionsRemoved

javax.management.j2ee.statistics.CountStatistic getNumExpiredSessionsRemoved()

Returns the number of removed Expired Sessions as a CountStatistic.

Returns:

an instance of CountStatistic

getNumPassivationSuccess

javax.management.j2ee.statistics.CountStatistic getNumPassivationSuccess()

Returns the number of errors in passivating a Stateful Session Bean, as a CountStatistic. Must be less than or equal to getNumPassivations()

Returns:

an instance of CountStatistic