ABAP_to_the_Future

Using Floorplan Manager to Modify Existing WDA Components 12.3
that working, you can plug the BOPF object straight into FPM and have a working
application to show an object instance using the floorplan provided for that purpose.
(In fact, it’s best to keep the real model class separate from the BOPF framework,
but that’s not important here.)
You’ve created a BOPF monster object (w hich uses a separate model class), and
you can create an FPM application based upon this. There are two ways to do this:
the easy way, in which the results don’ t look so good and you cannot add your
own bells and whistles, or the almost as easy way (called an FBI view; FBI stands
for “Floorplan BOPF Integration”), which still doesn’t look all that good, but you
can add as many extra things as you feel like until the cows come home. Naturally,
the second method is best, but for the sake of completeness this chapter discusses
both.
Earlier in this chapter it was mentione d that reusing existing WDA components
involves adding an interface to them to make them visible to the FPM, turning
those components into freestyle UIBBs. Wi th the integration of BOPF and the
FPM, you would be creating an FPM application from scratch using the other type
of UIBBs: namely, GUIBBs, which are reusable UI elements designed to give disparate
applications the same look and feel.
GUIBBs have no business logic as per the MVC pattern; a GUIBB gets its information
from a feeder class. Here the BOPF framework serves as the model, holding
the business logic, and at the other end ofthe scale the GUIBBs do view-like tasks
such as arranging data in a grid in an attractive and consistent manner. The configuration
of FPM acts as the controller, linking the business logic and the view
tasks together.
In the floorplan for displaying a single business object record, there are two
screens: an initial screen in which you enter the monster number (or, on the off
chance that you are not dealing with monsters, a sales order number or some
other such number) and a screen that shows the header record and a table of item
details. (The definition of the monster business object and the methods to get the
header and item data were set up in Chapter 8.)
Start with the initial screen. Earlier in this chapter, you looked at the Component
Configuration screen for defining FPM applications. In that screen, you can
choose New 폷 Initial Screen, and the resulting screen will look like Figure 12.39.
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