ABAP_to_the_Future

Creating and Using Shared Memory Objects 14.2
The broker class has a number of public static methods, which can be seen in Figure
14.7. The best way to un derstand these is to see an example of how to use
them in ABAP programs; conveniently, this is the subject of Section 14.2.3.
Figure 14.7 Broker Class: Methods
14.2.3 Using Shared Memory Objects in ABAP Programs
Now that you have your root class and broker class set up, you can start using
them in your lovely ABAP programs. As might be imagined, there are two things
you want to do with persistent data (r emember: persistent data isn’t data that
keeps on and on at you and never gives up; it’s data that is permanently stored in
the database). You want to read such data and to create or change such data (a
write request).
The following subsections look at the two types of database requests you make—
read and write—one at a time, with examples of how to code such requests.
Coding a Read Request
In Listing 14.4, you see the code for getting the data out of shared memory; it’s
very simple—just a few lines. First, you need to create an instance of your broker
643