Package com.inductiveautomation.ignition.gateway.history

Interface HistoricalTagValue

All Superinterfaces:

PersistentData

All Known Implementing Classes:

PackedHistoricalQualifiedValue

public interface HistoricalTagValue
extends PersistentData

This interface defines a piece of history coming from a tag, and is used by the history storage system. It is a QualifiedValue, and adds on some information about the source and settings.

NOTE: The tag history system does not expect multiple values for a given path for a given time. It relies on implementors of this interface to implement .equals() correctly in order to ensure this.

Method Summary

Modifier and Type	Method	Description
InterpolationMode	getInterpolationMode()
DataQuality	getQuality()
TagPath	getSource()
Date	getTimestamp()
TimestampSource	getTimestampSource()
DataTypeClass	getTypeClass()
Object	getValue()

Methods inherited from interface com.inductiveautomation.ignition.gateway.storeforward.data.PersistentData

getDataCount, getFlavor

Method Details

getSource

TagPath getSource()

getTypeClass

DataTypeClass getTypeClass()

getInterpolationMode

InterpolationMode getInterpolationMode()

getTimestampSource

TimestampSource getTimestampSource()

getValue

Object getValue()

getQuality

DataQuality getQuality()

getTimestamp

Date getTimestamp()