Interface CfnDataset.IDeltaTimeProperty
Used to limit data to that which has arrived since the last execution of the action.
Namespace: Amazon.CDK.AWS.IoTAnalytics
Assembly: Amazon.CDK.AWS.IoTAnalytics.dll
Syntax (csharp)
public interface IDeltaTimeProperty
Syntax (vb)
Public Interface IDeltaTimeProperty
Remarks
ExampleMetadata: fixture=_generated
Examples
// The code below shows an example of how to instantiate this type.
// The values are placeholders you should change.
using Amazon.CDK.AWS.IoTAnalytics;
var deltaTimeProperty = new DeltaTimeProperty {
OffsetSeconds = 123,
TimeExpression = "timeExpression"
};
Synopsis
Properties
OffsetSeconds | The number of seconds of estimated in-flight lag time of message data. |
TimeExpression | An expression by which the time of the message data might be determined. |
Properties
OffsetSeconds
The number of seconds of estimated in-flight lag time of message data.
double OffsetSeconds { get; }
Property Value
System.Double
Remarks
When you create dataset contents using message data from a specified timeframe, some message data might still be in flight when processing begins, and so do not arrive in time to be processed. Use this field to make allowances for the in flight time of your message data, so that data not processed from a previous timeframe is included with the next timeframe. Otherwise, missed message data would be excluded from processing during the next timeframe too, because its timestamp places it within the previous timeframe.
TimeExpression
An expression by which the time of the message data might be determined.
string TimeExpression { get; }
Property Value
System.String
Remarks
This can be the name of a timestamp field or a SQL expression that is used to derive the time the message data was generated.