Activiy

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Activity is rule under technical category. It is an instance of the class Rule-Obj-Activity.

Activity is used to implement business logic.

PRPC provides a set of predefined methods which we use through activity in order to implement business logic.

Activity contains a sequence of steps like 1, 2, 3, and 4….and so on… At each and every step we can call one predefined method and pass the parameters to it.

The below are basic methods which we can use in activities.

1) Page-New: - This method can be used to create new user pages on the clipboard.

2) Page-Remove: - This method can be used to delete user pages from the clipboard.

3) Property-Set: - This method can be used to perform assignment operation i.e to assign the values to properties.

Tracer: - Tracer is one of the main debugging tools in PRPC using which we can debug many types of rules to see step by step execution.

How to Invoke One Activity from another Activity.

An Activity can be invoked from another activity by using below two instructions.

1)      Call

2)      Branch.

If we have two activity ‘ChildActiity’ and ‘ParentActivity’, and if we want to invoke ChildActivity from parentActivity the syntax is.

Within ParentActivity step we need to write below code. 1) Call ChildActivity. 2) Branch ChildActivity.

Difference between Call and Branch:-

Call Branch Call invokes the child activity, executes it Call invokes the child activity, executes it then comes back to the parent activity and then comes back to the parent activity and executes remaining steps after call step. End the exception of parent activity at the branch step itself i.e., it will not execute any steps which are written after branch step.

Activity Types: - 1. Activity 2.Utility 3. On Change 4.Notify 5.Trigger 6.Connect etc.….

Activity Type can be chosen under the Usage Dropdown field in the Security Tab of Activity Rule Form.

Activity types identifies where this activity should be invoked from.

Activity Type Invoked From

1. Activity        1. Activity / HTML Controls.

2. Utility          2. Flow Using Utility Flow Shape.

3. OnChange   3. Declare Onchange Rule

4. Trigger        4. Declare Trigger Rule

5. Connect       5. Flow Using Integrator Shape.

            6. Notify          6. Flow using Assignment Shape under Notification Tab. 

Pre-Condition and Post-Condition in activity steps

·         In an activity, at each and every step it provides when (before step), jump (after step)

·         At the when and jump we can enable the condition and call a when condition rule

·         Based on the condition satisfied, we can

-          Continue to execute step

-          Skip step

-          Jump to another step etc.…

·         The condition called at when is said to be Pre-Condition whereas the condition called at jump is said to be Post-Condition/Transition