com.inductiveautomation.ignition.gateway.sqltags.contexts

Class DirectTagEvaluationContext

java.lang.Object

com.inductiveautomation.ignition.gateway.sqltags.contexts.DirectTagEvaluationContext

All Implemented Interfaces:

TagEvaluationContext, TagWriteContext

Direct Known Subclasses:

SimpleExecutableScanClass.ScanClassTagEvaluationContext

public abstract class DirectTagEvaluationContext
extends java.lang.Object
implements TagEvaluationContext

Constructor Summary

Constructors

Constructor and Description
DirectTagEvaluationContext()

Method Summary

Modifier and Type	Method and Description
void	addValueChange(TagPropertyValue value)
protected abstract GatewayContext	getContext()
protected abstract org.apache.log4j.Logger	getTagLogger()
protected abstract TagValueListener	getTagValueListener()
void	storeHistoricalValue(java.lang.String historicalProvider, HistoricalTagValue value)
void	writeOPCValue(TagOPCWriteRequest value)
void	writeSQLTagValue(AsyncWriteRequest<TagPath> value)

Methods inherited from class java.lang.Object

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

Constructor Detail

DirectTagEvaluationContext

public DirectTagEvaluationContext()

Method Detail

getTagValueListener

protected abstract TagValueListener getTagValueListener()

getContext

protected abstract GatewayContext getContext()

getTagLogger

protected abstract org.apache.log4j.Logger getTagLogger()

addValueChange

public void addValueChange(TagPropertyValue value)

Specified by:

addValueChange in interface TagEvaluationContext

storeHistoricalValue

public void storeHistoricalValue(java.lang.String historicalProvider,
                                 HistoricalTagValue value)

Specified by:

storeHistoricalValue in interface TagEvaluationContext

writeSQLTagValue

public void writeSQLTagValue(AsyncWriteRequest<TagPath> value)

Specified by:

writeSQLTagValue in interface TagWriteContext

writeOPCValue

public void writeOPCValue(TagOPCWriteRequest value)

Specified by:

writeOPCValue in interface TagWriteContext