com.sun.appserv.management.monitor.statistics
Interface EJBCacheStats

All Superinterfaces:

Stats

public interface EJBCacheStats
extends 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.

Method Summary

BoundedRangeStatistic	getBeansInCache() Returns total number of EJBs in the associated EJB Cache, as a BoundedRangeStatistic.
BoundedRangeStatistic	getCacheHits() Returns the number of times a user request hits an EJB in associated EJB cache instance, as a CountStatistic.
BoundedRangeStatistic	getCacheMisses() Returns the number of times a user request fails to find an EJB in associated EJB cache instance, as a CountStatistic.
CountStatistic	getExpiredSessionsRemoved() Returns the number of removed Expired Sessions as a CountStatistic.
CountStatistic	getPassivationErrors() Returns the number of errors in passivating a Stateful Session Bean, as a CountStatistic.
CountStatistic	getPassivations() Returns the number of passivations of a Stateful Session Bean, as a CountStatistic.
CountStatistic	getPassivationSuccesses() 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

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

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

getBeansInCache

BoundedRangeStatistic getBeansInCache()

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

getPassivations

CountStatistic getPassivations()

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

Returns:

an instance of CountStatistic

getPassivationErrors

CountStatistic getPassivationErrors()

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

Returns:

an instance of CountStatistic

getExpiredSessionsRemoved

CountStatistic getExpiredSessionsRemoved()

Returns the number of removed Expired Sessions as a CountStatistic.

Returns:

an instance of CountStatistic

getPassivationSuccesses

CountStatistic getPassivationSuccesses()

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

Returns:

an instance of CountStatistic