Package com.illumon.iris.db.v2.by
Class TrackingFirstByStateFactoryImpl
java.lang.Object
com.illumon.iris.db.v2.by.ReaggregatableStatefactory
com.illumon.iris.db.v2.by.IterativeIndexStateFactory
com.illumon.iris.db.v2.by.TrackingFirstByStateFactoryImpl
- All Implemented Interfaces:
BasicDeflatable<TrackingFirstByStateFactoryImpl>
,AggregationStateFactory
public class TrackingFirstByStateFactoryImpl extends IterativeIndexStateFactory implements BasicDeflatable<TrackingFirstByStateFactoryImpl>
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Field Summary
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Constructor Summary
Constructors Constructor Description TrackingFirstByStateFactoryImpl()
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Method Summary
Modifier and Type Method Description BasicInflatable<TrackingFirstByStateFactoryImpl>
deflate()
AggregationMemoKey
getMemoKey()
Produces a MemoKey for this aggregation state factory.String
toString()
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Constructor Details
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TrackingFirstByStateFactoryImpl
public TrackingFirstByStateFactoryImpl()
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Method Details
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getMemoKey
Description copied from interface:AggregationStateFactory
Produces a MemoKey for this aggregation state factory.If two AggregationStateFactories have equal memoKeys, then
Table.by(com.illumon.iris.db.v2.by.AggregationStateFactory, com.illumon.iris.db.v2.select.SelectColumn...)
operations that have the same group by columns may be memoized. In that case instead of recomputing the result; the original result will be used.If null is returned, the operation will not be memoized.
- Specified by:
getMemoKey
in interfaceAggregationStateFactory
- Returns:
- an AggregationMemoKey, null if this operation can not be memoized.
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toString
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deflate
- Specified by:
deflate
in interfaceBasicDeflatable<TrackingFirstByStateFactoryImpl>
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