io.druid.query

Interface GenericQueryMetricsFactory

All Known Implementing Classes:

DefaultGenericQueryMetricsFactory

public interface GenericQueryMetricsFactory

This factory is used for DI of custom QueryMetrics implementations for all query types, which don't (yet) need to emit custom dimensions and/or metrics, i. e. they are good with the generic QueryMetrics interface. Implementations could be injected using PolyBind .optionBinder(binder, Key.get(GenericQueryMetricsFactory.class)) .addBinding("myCustomGenericQueryMetricsFactory") .to(MyCustomGenericQueryMetricsFactory.class); And then setting property: druid.query.generic.queryMetricsFactory=myCustomGenericQueryMetricsFactory

Method Summary

Modifier and Type	Method and Description
QueryMetrics<Query<?>>	makeMetrics(Query<?> query) Creates a QueryMetrics for query, which doesn't have predefined QueryMetrics subclass.

Method Detail

makeMetrics

QueryMetrics<Query<?>> makeMetrics(Query<?> query)

Creates a QueryMetrics for query, which doesn't have predefined QueryMetrics subclass. This method must call QueryMetrics.query(Query) with the given query on the created QueryMetrics object before returning.