PTDiffusionTimeSeriesQueryResultEventArrayStructure Class Reference

Introduction

Describes the structural properties of the array of events presented by a time series query result.

See also

PTDiffusionTimeSeriesQueryResult

Since

6.0

Inheritance diagram for PTDiffusionTimeSeriesQueryResultEventArrayStructure:

Class Methods
(instancetype)	+ editEventStream
(instancetype)	+ valueEventStream
Class Methods inherited from PTDiffusionEnumeration
(NSSet< PTDiffusionEnumeration * > *)	+ elements

Additional Inherited Members
Instance Methods inherited from PTDiffusionEnumeration
(BOOL)	- isEqualToEnumeration:

Method Documentation

editEventStream

+ (instancetype) editEventStream

The array is presented in time series order, with the following properties:

• The sequence of each event in the array is unique.
• The array is ordered by sequence. The sequence of each subsequent event in the stream is greater than its predecessor.
• Edit event timestamps may lie outside the query range.
• The array can have multiple edit events for the same original event.

Returns

Instance indicating the array is presented in time series order.

Since

6.0

valueEventStream

+ (instancetype) valueEventStream

The array is ordered by the original event sequence number, presenting edit events instead of the original events they replace.

The array has the following properties:

• The sequence of each event in the stream is unique.
• The original event sequence of each event in the stream is unique.
• The stream is ordered by original event sequence. The original event sequence of each subsequent event in the stream is greater than its predecessor.
• If no events have been removed from the time series, the original event sequence of each subsequent event is one greater than its predecessor.
• If an event is an original event, the query found no corresponding edit events.
• If an event is an edit event, its timestamp attribute may lie outside the query range. Consequentially, the sequence and timestamp attributes of the events may be non-sequential.

Returns

Instance indicating array is ordered by the original event sequence number.

Since

6.0