Back Forward Activities, libraries, and functions — Concepts and terms

Concepts and terms

Activities are the primary processing rules in PRPC. Each activity is a rule, saved as an instance of the Rule-Obj-Activity rule type. PRPC includes hundreds of useful standard activities that your application can call. Developers create and debug additional custom activities.

As an activity executes, it can create or remove clipboard pages, create, and update properties on these pages, save them to the PegaRULES database, and interact with a human user by sending and receiving HTML documents and forms.

Steps

Activities process a sequence of steps. Each step can contain:

Calling activities

Activities can be called from many places:

Rules assembly

When you save an Activity rule form, the system converts the activity into Java code. You can review the resulting Java source code, but not alter this code. You can also generate an English-language description (known as the verbalization) of the activities processing, in the form of a text only HTML page that can become a part of your application's documentation.

Libraries and Functions

A library is a collection of Java functions that share a common name prefix, prerequisite Java packages, and other initial conditions. A library is an instance of the Rule-Utility-Library class. A function rule encapsulates a Java function and makes it accessible to PRPC developers as a rule. A function is an instance of the Rule-Utility-Function class.

Debugging

Three tools support developers as they work with activities:

Definitions Technical category
Standard rules Atlas — Standard activities — Extension points
Atlas — Standard activities for use in flows
Atlas — Standard activities — Process API
Atlas — Standard activities of type Activity
Atlas — Standard libraries
Atlas — Standard Function Rules

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