Defining Business Object Persistency 

Use

You can set the persistency of business objects.

Procedure

...

       1.      In the Composite Application Explorer, open the business object you want to persist.

       2.      Open the Persistency tab page.

       3.      From the Backend dropdown box, select the persistency type:

¡        Local

¡        Remote

Result

For remotely persisted business objects, you should create mappings for the operations on the Datasource  tab page.

You can override the CRUD and query methods in a business object service. You can do this on the Implementation tab page and opening the custom code class for the service from there. In the custom code class you override methods from the superclass, for example read, update, create, delete. You may just modify the behavior of each of the methods, or override the implementation entirely. This is also called custom persistency.