ABAP_to_the_Future

Defining a Business Object 8.1
Figure 8.3 Header (Root) Node
In the Persistent Structure field, enter the name of the persistent structure,
which is a list of all fields that are going to be stored in the database for the header
record. You create this structure by double-clicking the structure name you have
entered, which takes you into SE11. For this example, start the list with MONSTER_
NUMBER. Traditionally, in a database table a human-readable field like this would
be your primary key, but in the BOBF wo rld the real primary key will be a 32-
character GUID.
The transient structure (a lso created by double-clicking the chosen structure
name and adding your chosen fields) is a list of the fields that are dynamically
determined at runtime: text names for organizational units, calculated fields, and
the like. In the past, you may have created DYNPRO screens and first added fields
from a table like VBAK (sales organiza tion, sales office, and the like) and then
manually added text fields, which you later manually fill up with your own code
so that humans can know what the values in the database fields mean. In the
BOBF world, you think about this in adva nce, before you even go near the UI
layer.
In Figure 8.4, you’re about to create the database table for the header record. As
you can see, you’re going to generate a structure for the combined structures
(persistent records and transient records) , a table type of this same combined
structure, and the database table for the persistent records all in one hit. These are
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