Package com.inductiveautomation.historian.gateway.api.storage.realtime

Class EmptyCollectionContext

java.lang.Object

com.inductiveautomation.historian.gateway.api.storage.realtime.EmptyCollectionContext

All Implemented Interfaces:

CollectionContext

public final class EmptyCollectionContext
extends Object
implements CollectionContext

A property-less implementation of CollectionContext that represents a "no context" state. This implementation is a singleton and only provides the minimum required functionality.

When a DataCollector receives this context, it should perform a collection operation without considering any specific collection parameters like ID, source, or scheduling.

Nested Class Summary

Nested classes/interfaces inherited from interface com.inductiveautomation.historian.gateway.api.storage.realtime.CollectionContext

CollectionContext.Builder, CollectionContext.StandardProperties

Method Summary

Modifier and Type	Method	Description
boolean	equals(Object obj)
PropertySet	getProperties()
<T> Optional<T>	getValue(Property<T> property)
int	hashCode()
boolean	hasProperty(Property<?> property)
boolean	isEmpty()	Checks if this context is empty (has no properties or only default ones).
String	toString()

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface com.inductiveautomation.historian.gateway.api.storage.realtime.CollectionContext

collectionId, collectionInterval, collectionSource, collectionTime, isHeartbeat, valueOrigin

Method Details

hasProperty

public boolean hasProperty(Property<?> property)

Specified by:

hasProperty in interface CollectionContext

getValue

public <T> Optional<T> getValue(Property<T> property)

Specified by:

getValue in interface CollectionContext

getProperties

public PropertySet getProperties()

Specified by:

getProperties in interface CollectionContext

isEmpty

public boolean isEmpty()

Description copied from interface: CollectionContext

Checks if this context is empty (has no properties or only default ones).

Specified by:

isEmpty in interface CollectionContext

Returns:

true if this is an empty context, false otherwise

toString

public String toString()

Overrides:

toString in class Object

equals

public boolean equals(Object obj)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object