PTDiffusionTimeSeriesEventMetadata Class Reference

Introduction

Metadata associated with a time series event.

See Also

PTDiffusionTimeSeriesEvent

Since

6.0

Inheritance diagram for PTDiffusionTimeSeriesEventMetadata:

Properties
UInt64	sequence
SInt64	timestamp
NSString *	author

Instance Methods
(BOOL)	- isEqualToTimeSeriesEventMetadata:

Method Documentation

- (BOOL) isEqualToTimeSeriesEventMetadata:

(nullable PTDiffusionTimeSeriesEventMetadata *)

timeSeriesEventMetadata

Compares the receiver to the given time series event metadata.

Parameters

timeSeriesEventMetadata

The time series event metadata object with which to compare the receiver.

Returns

YES if it matches the receiver for just metadata elements (sequence, timestamp and author), otherwise NO.

Since

6.0

Property Documentation

- (NSString*) author

readnonatomicassign

Server-authenticated identity of the session that created the event.

Returns

The principal that created the event, or [PTDiffusionSession anonymousPrincipal] if the session that created the event was not authenticated

Since

6.0

- (UInt64) sequence

readnonatomicassign

Sequence number identifying this event within its time series. Assigned by the server when the event is created.

Sequence numbers are unique within a time series. Each event appended to a time series is assigned a sequence number that is equal to the sequence number of the preceding event plus one.

Returns

The sequence number; never higher than INT64_MAX.

Since

6.0

- (SInt64) timestamp

readnonatomicassign

Event timestamp. Assigned by the server when the event is created.

Events do not have unique timestamps. Events with different sequence numbers may have the same timestamp.

Subsequent events in a time series usually have timestamps that are greater or equal to the timestamps of earlier events, but this is not guaranteed due to changes to the time source used by the server.

Returns

The difference, measured in milliseconds, between the time the server added the event to the time series and midnight, January 1, 1970 UTC.

Since

6.0