Package org.apache.jackrabbit.oak.query.stats

Class QueryStatsMBeanImpl

java.lang.Object

javax.management.StandardMBean

org.apache.jackrabbit.oak.commons.jmx.AnnotatedStandardMBean

org.apache.jackrabbit.oak.query.stats.QueryStatsMBeanImpl

All Implemented Interfaces:

DynamicMBean, MBeanRegistration, QueryStatsMBean, QueryStatsReporter

public class QueryStatsMBeanImpl
extends AnnotatedStandardMBean
implements QueryStatsMBean, QueryStatsReporter

Field Summary

Fields inherited from interface org.apache.jackrabbit.oak.query.stats.QueryStatsMBean

TYPE

Constructor Summary

Constructors

Constructor	Description
QueryStatsMBeanImpl(QueryEngineSettings settings)

Method Summary

Modifier and Type	Method	Description
String	asJson()
boolean	getCaptureStackTraces()
int	getEvictionCount()
TabularData	getPopularQueries()
QueryStatsData.QueryExecutionStats	getQueryExecution(String statement, String language)
TabularData	getSlowQueries()	Get the slow queries.
void	resetStats()
void	setCaptureStackTraces(boolean captureStackTraces)	Whether to capture a thread dump in addition to the thread name.

Methods inherited from class org.apache.jackrabbit.oak.commons.jmx.AnnotatedStandardMBean

getDescription, getDescription, getDescription, getDescription, getImpact, getParameterName

Methods inherited from class javax.management.StandardMBean

cacheMBeanInfo, getAttribute, getAttributes, getCachedMBeanInfo, getClassName, getConstructors, getDescription, getDescription, getDescription, getImplementation, getImplementationClass, getMBeanInfo, getMBeanInterface, getParameterName, invoke, postDeregister, postRegister, preDeregister, preRegister, setAttribute, setAttributes, setImplementation

Methods inherited from class java.lang.Object

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

Constructor Details

QueryStatsMBeanImpl

public QueryStatsMBeanImpl(QueryEngineSettings settings)

Method Details

getSlowQueries

public TabularData getSlowQueries()

Description copied from interface: QueryStatsMBean

Get the slow queries. Those are the ones that scan more than 100'000 nodes, or the configured maximum number of nodes to scan. (Raw execution time is not taken into account, as execution can be slow if the code is not compiled yet.)

Specified by:

getSlowQueries in interface QueryStatsMBean

Returns:

the slow queries table

getPopularQueries

public TabularData getPopularQueries()

Specified by:

getPopularQueries in interface QueryStatsMBean

resetStats

public void resetStats()

Specified by:

resetStats in interface QueryStatsMBean

setCaptureStackTraces

public void setCaptureStackTraces(boolean captureStackTraces)

Description copied from interface: QueryStatsMBean

Whether to capture a thread dump in addition to the thread name. No thread name / thread dump is captures for internal queries.

Specified by:

setCaptureStackTraces in interface QueryStatsMBean

Parameters:

captureStackTraces - the new valu

getCaptureStackTraces

public boolean getCaptureStackTraces()

Specified by:

getCaptureStackTraces in interface QueryStatsMBean

asJson

public String asJson()

Specified by:

asJson in interface QueryStatsMBean

getQueryExecution

public QueryStatsData.QueryExecutionStats getQueryExecution(String statement,
 String language)

Specified by:

getQueryExecution in interface QueryStatsReporter

getEvictionCount

public int getEvictionCount()