Persistence of case data

When a case worker saves a new case or an updated case, the IBM® Case Manager REST protocol makes a final call to the external data service. The REST protocol uses the response returned by the service to determine which values are to be saved to the repository for the case.

For the final call to the external data service, the requestMode parameter is set to finalNewObject for a new case or finalExistingObject for an updated case.

The IBM Case Manager REST protocol evaluates each property as follows:

A value that is explicitly passed to the protocol by Case Manager Client is checked against any property attributes that are returned by the external data service. If the value passes validation, that value is saved for the case in Content Platform Engine. If the value does not pass validation, the protocol returns an error.
If a value is not explicitly passed by Case Manager Client and the service passes a value for the property, that value is saved for the case in Content Platform Engine.
If a value is not explicitly passed by Case Manager Client and the service does not pass a value, the default value for a new case is saved for the case in Content Platform Engine. For an existing case, the current value is unchanged. However, the REST protocol checks the default value or current value against any property values returned by the service. If the value does not pass validation, the REST protocol returns an error.

Typically, if the requestMode parameter is set to finalNewObjector finalExistingObject, the external data service overrides the current working value of a property if that value is invalid. Typically, the service validates property values in earlier requests, so this situation rarely occurs. However, you can implement the service to override invalid property values. In particular, the service can override a property value when the display mode is set to read-only. The case worker cannot change the property value in this situation.