FloatStaticEMAOperator

java.lang.Object

com.illumon.iris.db.v2.updateby.internal.AbstractStaticUpdateByOperator

com.illumon.iris.db.v2.updateby.ema.BaseStaticEMAOperator

com.illumon.iris.db.v2.updateby.ema.FloatStaticEMAOperator

All Implemented Interfaces:: ChunkedUpdateByOperator

public class FloatStaticEMAOperator
extends BaseStaticEMAOperator

Nested Class Summary

Nested classes/interfaces inherited from interface com.illumon.iris.db.v2.updateby.ChunkedUpdateByOperator
ChunkedUpdateByOperator.BucketedUpdateContext, ChunkedUpdateByOperator.UpdateContext
Field Summary

Fields inherited from class com.illumon.iris.db.v2.updateby.ema.BaseStaticEMAOperator
control, timeRecorder, timeScaleUnits

Fields inherited from interface com.illumon.iris.db.v2.updateby.ChunkedUpdateByOperator
ZERO_LENGTH_OP_ARRAY

Constructor Summary

Constructors
Constructor	Description
`FloatStaticEMAOperator(MatchPair pair, EmaControl control, LongRecordingUpdateByOperator timeRecorder, long timeScaleUnits)`	An operator that computes an EMA from a float column using an exponential decay function.

Method Summary

Methods inherited from class com.illumon.iris.db.v2.updateby.ema.BaseStaticEMAOperator
addChunk, addChunk, getInputColumnName, getOutputColumnNames, getOutputColumns, initializeFor, initializeFor, makeBucketedContext, makeUpdateContext, setBucketCapacity

Methods inherited from class com.illumon.iris.db.v2.updateby.internal.AbstractStaticUpdateByOperator
anyModified, anyModified, applyShift, finishFor, finishFor, getAdditionalModifications, modifyChunk, removeChunk, setUpstream, setUpstream, startTrackingPrev

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details
- FloatStaticEMAOperator
  
  public FloatStaticEMAOperator(@NotNull MatchPair pair, @NotNull EmaControl control, @Nullable LongRecordingUpdateByOperator timeRecorder, long timeScaleUnits)
  
  An operator that computes an EMA from a float column using an exponential decay function.
  
  Parameters:
  
  pair - the MatchPair defining the input and output columns
  
  control - defines how to handle null input values.
  
  timeRecorder - an optional recorder for a timestamp column. If this is null, it will be assumed time is measured in integer ticks.
  
  timeScaleUnits - the smoothing window for the EMA. If no timeRecorder is provided, this is measured