Module datarush.commons

Package com.pervasive.datarush.monitoring

Class CounterDefinition

java.lang.Object

com.pervasive.datarush.monitoring.StatisticDefinition<CounterSupplier>

com.pervasive.datarush.monitoring.CounterDefinition

All Implemented Interfaces:

Serializable

public final class CounterDefinition
extends StatisticDefinition<CounterSupplier>

Definition associated with a CounterSupplier. Counters may aggregate by either CounterAggregator.SUM, CounterAggregator.MIN, or CounterAggregator.MAX.

See Also:

• Serialized Form

Field Summary

Fields inherited from class com.pervasive.datarush.monitoring.StatisticDefinition

CATEGORY_GENERAL, CATEGORY_IO

Constructor Summary

Constructors

Constructor	Description
CounterDefinition(String id, String displayName)	Creates a definition with default values.

Method Summary

Modifier and Type	Method	Description
CounterSupplier	aggregate(List<? extends StatisticSupplier> values)	Performs aggregation across statistics.
CounterAggregator	aggregator()	Returns the aggregator to use for counter aggregation.
CounterDefinition	aggregator(CounterAggregator aggregator)	Sets the aggregator to use for aggregation
CounterSupplier	cast(StatisticSupplier value)	Casts the StatisticSupplier to this definition, substituting a default value for null.
CounterDefinition	category(String category)	Sets the category
CounterSupplier	doFinalSnapshot(StatisticSupplier supplier)
CounterDefinition	nonPartitioned(boolean nonPartitioned)	Indicates that this statistic refers to a concept that is inherently non-parallel.
String	shortName()	Returns a shortened name that can be used in some ui display contexts.
CounterDefinition	shortName(String shortName)	Sets a shortened name that can be used in some ui display contexts.
UnitOfMeasure	unitOfMeasure()	Returns the unit of measure.
CounterDefinition	unitOfMeasure(UnitOfMeasure unitOfMeasure)	Sets the unit of measure.

Methods inherited from class com.pervasive.datarush.monitoring.StatisticDefinition

category, cpuTime, displayName, duration, equals, finalSnapshot, hashCode, id, ioBytes, ioCount, nonPartitioned, toString

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Details

CounterDefinition

public CounterDefinition(String id,
 String displayName)

Creates a definition with default values. This definition aggregates by CounterAggregator.SUM and an unspecified unit of measure.

Parameters:

id - the id for the statistic

displayName - the display name of this statistic

Method Details

aggregator

public CounterAggregator aggregator()

Returns the aggregator to use for counter aggregation.

Returns:

the aggregator to use for counter aggregation.

unitOfMeasure

public UnitOfMeasure unitOfMeasure()

Returns the unit of measure.

Returns:

the unit of measure.

shortName

public String shortName()

Returns a shortened name that can be used in some ui display contexts. By default this is the same as StatisticDefinition.displayName().

Returns:

a short name

category

public CounterDefinition category(String category)

Description copied from class: StatisticDefinition

Sets the category

Specified by:

category in class StatisticDefinition<CounterSupplier>

Parameters:

category - the category

Returns:

a newly-created StatisticDefinition.

unitOfMeasure

public CounterDefinition unitOfMeasure(UnitOfMeasure unitOfMeasure)

Sets the unit of measure.

Parameters:

unitOfMeasure - the unit of measure

Returns:

a newly-created CounterStatisticDefinition.

shortName

public CounterDefinition shortName(String shortName)

Sets a shortened name that can be used in some ui display contexts. By default this is the same as StatisticDefinition.displayName().

Parameters:

shortName - a short name

Returns:

a newly-created CounterStatisticDefinition.

aggregator

public CounterDefinition aggregator(CounterAggregator aggregator)

Sets the aggregator to use for aggregation

Parameters:

aggregator - the aggregator

Returns:

a newly-created CounterStatisticDefinition.

aggregate

public CounterSupplier aggregate(List<? extends StatisticSupplier> values)

Description copied from class: StatisticDefinition

Performs aggregation across statistics. Statistics will be aggregated in a manner specific to the concrete definition.

Specified by:

aggregate in class StatisticDefinition<CounterSupplier>

Parameters:

values - the values to aggregate

Returns:

the aggregated value

doFinalSnapshot

public CounterSupplier doFinalSnapshot(StatisticSupplier supplier)

cast

public CounterSupplier cast(StatisticSupplier value)

Description copied from class: StatisticDefinition

Casts the StatisticSupplier to this definition, substituting a default value for null.

Specified by:

cast in class StatisticDefinition<CounterSupplier>

Parameters:

value - the value

Returns:

a casted value or default if null.

nonPartitioned

public CounterDefinition nonPartitioned(boolean nonPartitioned)

Description copied from class: StatisticDefinition

Indicates that this statistic refers to a concept that is inherently non-parallel. An example would be planning statistics.

Specified by:

nonPartitioned in class StatisticDefinition<CounterSupplier>

Parameters:

nonPartitioned - whether this statistic refers to a non-partitioned concept

Returns:

a newly-created StatisticDefinition.