Discussion
Wipro Ltd
AU
Last activity: 3 Sep 2015 5:39 EDT
Warning when using Declare Triggers
Note that when using a Declare Trigger to run a trigger activity, the activity does not have a parameter page. This has the following effects:
- Any reference to a parameter will cause the activity to fail with a Java nullPointerException.
- Any use of looping constructs will also cause a Java nullPointerException, as PRPC will attempt to create and update properties such as Param.pyForEachCount.
Local variables are acceptable. If you need to loop, call a child activity (normal, not trigger) which will have its own parameter page. If you need to pass parameters into this child activity you will have to do it directly (rather than set the parameter values and ticking the “Pass current parameter page” checkbox as this won’t work).
PRPC will not generate any compilation warnings if parameters are used but the activity will fail at run time immediately upon hitting one.
Virtusa Corp.
US
Trigger activity will be fired when object is saved and also you can define properties if they change it doesn't get fired on any context due to which it doesnt have any parameter page.
Wipro Ltd
AU
Thanks raghu for your reply.
I understand that trigger activities does not run on any context bcoz of which it doesnt have any parameter page.
I have added above points while using declare trigger activities to the PDN audience so that they will be aware of the existing known issues.
Areteans Technology
IN
Good information Kiran. Since declare trigger activities are mentioned as trigger activity type, PRPC might warn the user about the failure situation at design time. May be an improvement.
Thanks,
Ashok
Wipro Ltd
AU