OnCreate is often called after a new object has been created.

It's very much like a .Net constructor for OCL.

You can use self.base.OnCreate to call the superclass's OnCreate as you would in another language.

Example

In the method body for OnCreate, set this OCL:

CreateTime:=DateTime.Now; 
self.Guid.newGuid() 

See more: Acting on object changes

See also: OnUpdate, OnDelete, OnStateChange