Striim 3.9.4 / 3.9.5 documentation

Loading and reloading TQL applications during development

Before you can start a new TQL application, you must first create and deploy it (see Managing deployment groups). For example, the following series of console commands creates, deploys, and runs simple.tql:

W (admin): @Samples/simple.tql;
 Processing - CREATE APPLICATION simple
 ...
 Processing - END APPLICATION simple
 Elapsed time: 2473 ms
W (admin): deploy application simple in default;
 Processing - deploy application simple in default
 Elapsed time: 180 m
W (admin): start application simple;
 Processing - start application simple
 Elapsed time: 73 ms

After editing the TQL file, to run the new version of the application, you must:

  • undeploy and drop the old version

  • load, deploy, and start the new version

For example, the following series of commands will drop the application loaded by the above commands.

W (admin) > undeploy application simple;
 Processing - undeploy application simple
 Elapsed time: 358 ms
W (admin) > drop application simple cascade;
            

Now repeat the @, DEPLOY, and START commands you used the first time you ran the application.

You can automate this by adding the commands to your application:

UNDEPLOY APPLICATION PosApp;
DROP APPLICATION PosApp CASCADE;
CREATE APPLICATION PosApp;
...
END APPLICATION PosApp;
DEPLOY APPLICATION PosApp;
START APPLICATION PosApp;