How to build one-to-many relationships in Pega?

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In Pega, a one-to-many relationship is a type of relationship between two data classes in which a single instance of one class is related to multiple instances of another class. For example, a customer data class may have a one-to-many relationship with an orders data class, with one customer having multiple orders.

To build a one-to-many relationship in Pega, you can follow these steps:

  1. Create the data classes: First, create the data classes that will be involved in the one-to-many relationship. For example, if you are creating a one-to-many relationship between a customer data class and an orders data class, you would need to create both data classes.
  2. Define the relationship: Next, define the one-to-many relationship between the data classes. To do this, you will need to create a reference property in the data class that is on the “many” side of the relationship (e.g., the orders data class) that points to the data class on the “one” side of the relationship (e.g., the customer data class).
  3. Create the data instances: After the data classes and the relationship have been defined, you can create data instances for both data classes. For example, you could create a customer data instance and multiple orders data instances, all related to that customer.
  4. Test the relationship: Finally, test the one-to-many relationship to ensure that it is working as expected. You can do this by creating and saving data instances and verifying that the relationship is correctly maintained.

By following these steps, you can build a one-to-many relationship in Pega.