Package io.ebeaninternal.server.core

Class DefaultMetaInfoManager

java.lang.Object

io.ebeaninternal.server.core.DefaultMetaInfoManager

All Implemented Interfaces:

MetaInfoManager

public class DefaultMetaInfoManager
extends Object
implements MetaInfoManager

DefaultServer based implementation of MetaInfoManager.

Method Summary

Modifier and Type	Method	Description
ServerMetrics	collectMetrics()	Return the metrics for the database instance.
List<MetricData>	collectMetricsAsData()	Return the metrics as a list of MetricData.
ServerMetricsAsJson	collectMetricsAsJson()	Collect the metrics in raw JSON form.
List<MetaQueryPlan>	queryPlanCollectNow(QueryPlanRequest request)	Collect query plans in the foreground.
List<MetaQueryPlan>	queryPlanInit(QueryPlanInit initRequest)	Initiate query plan collection by turning on "bind capture" on matching query plans.
void	resetAllMetrics()	Just reset all the metrics.
BasicMetricVisitor	visitBasic()	Run a visit collecting all the metrics and returning BasicMetricVisitor which holds all the metrics in simple lists.
void	visitMetrics(MetricVisitor visitor)	Visit the metrics resetting and collecting/reporting as desired.

Methods inherited from class java.lang.Object

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

Method Detail

queryPlanInit

public List<MetaQueryPlan> queryPlanInit(QueryPlanInit initRequest)

Description copied from interface: MetaInfoManager

Initiate query plan collection by turning on "bind capture" on matching query plans.

Also refer to ServerConfig collectQueryPlans that needs to be set to true and collectQueryPlanThresholdMicros which is a global defaults that can also initiate query plan capture.

Specified by:

queryPlanInit in interface MetaInfoManager

Returns:

The query plans that have had bind capture turned on by this request.

queryPlanCollectNow

public List<MetaQueryPlan> queryPlanCollectNow(QueryPlanRequest request)

Description copied from interface: MetaInfoManager

Collect query plans in the foreground.

Specified by:

queryPlanCollectNow in interface MetaInfoManager

visitMetrics

public void visitMetrics(MetricVisitor visitor)

Description copied from interface: MetaInfoManager

Visit the metrics resetting and collecting/reporting as desired.

Specified by:

visitMetrics in interface MetaInfoManager

collectMetrics

public ServerMetrics collectMetrics()

Description copied from interface: MetaInfoManager

Return the metrics for the database instance.

This will reset the metrics (reset counters back to zero etc) and will only return the non-empty metrics.

Specified by:

collectMetrics in interface MetaInfoManager

collectMetricsAsJson

public ServerMetricsAsJson collectMetricsAsJson()

Description copied from interface: MetaInfoManager

Collect the metrics in raw JSON form.

   String metricsJson = database.getMetaInfoManager()
       .collectMetricsAsJson()
       .json();

 

Specified by:

collectMetricsAsJson in interface MetaInfoManager

collectMetricsAsData

public List<MetricData> collectMetricsAsData()

Description copied from interface: MetaInfoManager

Return the metrics as a list of MetricData.

Specified by:

collectMetricsAsData in interface MetaInfoManager

visitBasic

public BasicMetricVisitor visitBasic()

Description copied from interface: MetaInfoManager

Run a visit collecting all the metrics and returning BasicMetricVisitor which holds all the metrics in simple lists.

Specified by:

visitBasic in interface MetaInfoManager

resetAllMetrics

public void resetAllMetrics()

Description copied from interface: MetaInfoManager

Just reset all the metrics. Maybe only useful for testing purposes.

Specified by:

resetAllMetrics in interface MetaInfoManager