Module datarush.commons

Package com.pervasive.datarush.monitoring

Class StatisticSuppliers

java.lang.Object

com.pervasive.datarush.monitoring.StatisticSuppliers

public final class StatisticSuppliers
extends Object

Miscellaneous utilities for working with StatisticSupplier's.

Method Summary

Modifier and Type	Method	Description
static StatisticsMap	aggregate(List<RuntimeStatistic<?>> details)	Performs aggregation across statistic details by the standard aggregation defined for each StatisticDefinition.
static StatisticSupplier	combine(StatisticDefinition<?> definition, List<? extends StatisticSupplier> suppliers)	Creates a statistics supplier that combines the given set of suppliers.

Methods inherited from class java.lang.Object

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

Method Details

combine

public static StatisticSupplier combine(StatisticDefinition<?> definition,
 List<? extends StatisticSupplier> suppliers)

Creates a statistics supplier that combines the given set of suppliers. Similar to StatisticDefinition.aggregate(List) the key difference is that the returned value is live rather than a snapshot.

Parameters:

definition - the definition

suppliers - the list of suppliers

Returns:

a live statistics supplier whose methods aggregate the components

Throws:

ClassCastException - if any of the values are not of the typed expected by the definition.

aggregate

public static StatisticsMap aggregate(List<RuntimeStatistic<?>> details)

Performs aggregation across statistic details by the standard aggregation defined for each StatisticDefinition. Statistics are first grouped by definition and then aggregated.

Parameters:

details - the list of statistics to aggregate

Returns:

the aggregated statistics