Task Scheduler Adapter Samples

About the Sample

These samples show how to use the Task Scheduler adapter to create events at specific intervals. The events created can be used to start or control EventFlow applications that are required to do specific tasks at specific times or intervals.

Importing This Sample into StreamBase Studio

In StreamBase Studio, import this sample with the following steps:

  • From the top menu, select FileLoad StreamBase Sample.

  • In the search field, enter Task Scheduler to narrow the list of samples.

  • Select Task Scheduler from the Standard StreamBase Adapters category.

  • Click OK.

StreamBase Studio creates a single project containing the sample files.

Running the Task Scheduler Sample

This sample shows various scheduled items by default. The adapter in this sample uses the Startup Cron settings to set up multiple triggers which fire and output event tuples at various times.

  1. In the Package Explorer view, double-click to open TaskScheduler.sbapp. Make sure the application is the currently active tab in the EventFlow Editor.

  2. Click the Run button. This opens the SB Test/Debug perspective and starts the application.

  3. In the Application Output view, look for the status and data tuples for the selected operation.

  4. When done, press F9 or click the Stop Running Application button.

Running the Task Scheduler Fire Times Sample

This sample shows how to set up a schedule that fires a specific number of times and then stops. Running this sample creates a schedule that fires every two seconds and stops after three occurrences.

  1. In the Package Explorer view, double-click to open TaskSchedulerFireTimes.sbapp. Make sure the application is the currently active tab in the EventFlow Editor.

  2. Click the Run button. This opens the SB Test/Debug perspective and starts the application.

  3. In the Application Output view, look for the status and data tuples for the selected operation.

  4. When done, press F9 or click the Stop Running Application button.

Sample Location

When you load the sample into StreamBase Studio, Studio copies the sample project's files to your Studio workspace, which is normally part of your home directory, with full access rights.

Important

Load this sample in StreamBase Studio, and thereafter use the Studio workspace copy of the sample to run and test it, even when running from the command prompt.

Using the workspace copy of the sample avoids permission problems. The default workspace location for this sample is:

studio-workspace/sample_adapter_embedded_taskscheduler

See Default Installation Directories for the location of studio-workspace on your system.