FeatureExpirationMethod Enumeration

In This Topic

Stream service feature expiration method.

Syntax

C#
Visual Basic (Declaration)

public enum FeatureExpirationMethod : System.Enum, System.IComparable, System.IConvertible, System.IFormattable

Public Enum FeatureExpirationMethod 
   Inherits System.Enum
   Implements System.IComparable, System.IConvertible, System.IFormattable

Members

Member	Description
MaximumFeatureAge	Features will expire after the specified time since the beginning of their lifetime.
MaximumFeatureCount	The oldest features will expire after a threshold number of features has been reached.

Example

Set the Maximum Count of Previous Observations to be Stored in Memory

//Must be on QueuedTask
//Set Expiration Method and Max Expiration Count
if (streamLayer.GetExpirationMethod() != FeatureExpirationMethod.MaximumFeatureCount)
  streamLayer.SetExpirationMethod(FeatureExpirationMethod.MaximumFeatureCount);
streamLayer.SetExpirationMaxCount(15);
//FYI
if (streamLayer.IsTrackAware)
{
  //MaxCount is per track! otherwise for the entire layer
}

Set the Maximum Age of Previous Observations to be Stored in Memory

//Must be on QueuedTask
//Set Expiration Method and Max Expiration Age
if (streamLayer.GetExpirationMethod() != FeatureExpirationMethod.MaximumFeatureAge)
  streamLayer.SetExpirationMethod(FeatureExpirationMethod.MaximumFeatureAge);
//set to 12 hours (max is 24 hours)
streamLayer.SetExpirationMaxAge(new TimeSpan(12,0,0));

//FYI
if (streamLayer.IsTrackAware)
{
  //MaxAge is per track! otherwise for the entire layer
}

Inheritance Hierarchy

System.Object
   System.ValueType
      System.Enum
         ArcGIS.Core.CIM.FeatureExpirationMethod

Requirements

Target Platforms: Windows 11, Windows 10

ArcGIS Pro version: 3.0 or higher.

Reference

ArcGIS.Core.CIM Namespace

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