cgl.narada.service.qos
Interface QosIdentifiers

All Known Implementing Classes:

QosIdentifiersImpl

public interface QosIdentifiers

The QosIdentofiers can be used to achieve various delivery schemes such as all-or-none, at-most-once, at-least-once, exactly-once, causal-ordered, publisher-ordered, time-constrained

Method Summary

boolean	hasSatisfiedCausalConstraints() Has satisfied any causal constraints that might be contained in the event
boolean	hasSatisfiedTimingConstraints() This would be based on the global NaradaBrokering clock
boolean	isArchived() Indicates if the event in question has been archived.
boolean	isDuplicate() Indicates if this event is a duplicate event
boolean	isOrdered() Indicates whether the event has satisfied ordering constraints and is ready for release.
boolean	isTimeOrdered() Checks to see if the event is ordered in time based on the NB clock
boolean	isTimeSpaced() Checks to see if the event has satisfied Time Differential Service (TDS) time-spacing requirements

Method Detail

isArchived

boolean isArchived()

Indicates if the event in question has been archived. This can be used to implement the all-or-none primitive.

hasSatisfiedCausalConstraints

boolean hasSatisfiedCausalConstraints()

Has satisfied any causal constraints that might be contained in the event

isDuplicate

boolean isDuplicate()

Indicates if this event is a duplicate event

isOrdered

boolean isOrdered()

Indicates whether the event has satisfied ordering constraints and is ready for release. Specifically publisher ordering

hasSatisfiedTimingConstraints

boolean hasSatisfiedTimingConstraints()

This would be based on the global NaradaBrokering clock

isTimeOrdered

boolean isTimeOrdered()

Checks to see if the event is ordered in time based on the NB clock

isTimeSpaced

boolean isTimeSpaced()

Checks to see if the event has satisfied Time Differential Service (TDS) time-spacing requirements