WmiDataReaderTask.InitializeTask Method
Definition
Important
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Initializes the properties associated with the WmiDataReaderTask task. This method is called by the runtime and is not used in code.
public:
override void InitializeTask(Microsoft::SqlServer::Dts::Runtime::Connections ^ connections, Microsoft::SqlServer::Dts::Runtime::VariableDispenser ^ variableDispenser, Microsoft::SqlServer::Dts::Runtime::IDTSInfoEvents ^ events, Microsoft::SqlServer::Dts::Runtime::IDTSLogging ^ log, Microsoft::SqlServer::Dts::Runtime::EventInfos ^ eventInfos, Microsoft::SqlServer::Dts::Runtime::LogEntryInfos ^ logEntryInfos, Microsoft::SqlServer::Dts::Runtime::ObjectReferenceTracker ^ refTracker);public override void InitializeTask (Microsoft.SqlServer.Dts.Runtime.Connections connections, Microsoft.SqlServer.Dts.Runtime.VariableDispenser variableDispenser, Microsoft.SqlServer.Dts.Runtime.IDTSInfoEvents events, Microsoft.SqlServer.Dts.Runtime.IDTSLogging log, Microsoft.SqlServer.Dts.Runtime.EventInfos eventInfos, Microsoft.SqlServer.Dts.Runtime.LogEntryInfos logEntryInfos, Microsoft.SqlServer.Dts.Runtime.ObjectReferenceTracker refTracker);override this.InitializeTask : Microsoft.SqlServer.Dts.Runtime.Connections * Microsoft.SqlServer.Dts.Runtime.VariableDispenser * Microsoft.SqlServer.Dts.Runtime.IDTSInfoEvents * Microsoft.SqlServer.Dts.Runtime.IDTSLogging * Microsoft.SqlServer.Dts.Runtime.EventInfos * Microsoft.SqlServer.Dts.Runtime.LogEntryInfos * Microsoft.SqlServer.Dts.Runtime.ObjectReferenceTracker -> unitPublic Overrides Sub InitializeTask (connections As Connections, variableDispenser As VariableDispenser, events As IDTSInfoEvents, log As IDTSLogging, eventInfos As EventInfos, logEntryInfos As LogEntryInfos, refTracker As ObjectReferenceTracker)Parameters
- connections
- Connections
A Connections collection for the task.
- variableDispenser
- VariableDispenser
A VariableDispenser object for locking variables.
- events
- IDTSInfoEvents
An object that implements the IDTSInfoEvents interface for receiving events.
- log
- IDTSLogging
An object that implements the IDTSLogging interface for logging events.
- eventInfos
- EventInfos
A EventInfos object.
- logEntryInfos
- LogEntryInfos
A LogEntryInfos object.
- refTracker
- ObjectReferenceTracker
An ObjectReferenceTracker object.
Examples
Task developers define custom events by overriding the InitializeTask method of the Task base class, and creating a new EventInfo. The following code sample shows the InitializeTask method of a custom task, where two custom events are created, and added to the eventInfos collection.
public override void InitializeTask(Connections connections, VariableDispenser variables, IDTSInfoEvents events, IDTSLogging log, EventInfos eventInfos, LogEntryInfos logEntryInfos, ObjectReferenceTracker refTracker)
{
this.eventInfos = eventInfos;
string[] paramNames = new string[1];
TypeCode[] paramTypes = new TypeCode[1]{TypeCode.Int32};
string[] paramDescriptions = new string[1];
paramNames[0] = "InitialValue";
paramDescriptions[0] = "The value before increment.";
this.eventInfos.Add("OnBeforeIncrement","Fires before the task increments the value.",true,paramNames,paramTypes,paramDescriptions);
this.onBeforeIncrement = this.eventInfos["OnBeforeIncrement"];
paramDescriptions[0] = "The value after increment.";
this.eventInfos.Add("OnAfterIncrement","Fires after the initial value is updated.",true,paramNames, paramTypes,paramDescriptions);
this.onAfterIncrement = this.eventInfos["OnAfterIncrement"];
}
Remarks
For the WmiDataReaderTask and all other stock tasks, this method is used to set the log events of each task. The Integration Services run-time engine calls this method immediately after the task is created, and before validation, execution, or persistence operations.