Java Reference
In-Depth Information
The most commonly known tuple of configuration, profile, and package is based
on the CLDC package, including the Mobile Information Device Profile (MIDP) accom-
panied by optional packages, powering billions of the world's mobile phones today. In
fact, this configuration is
so
common that many think of it as the only version of Java ME.
Figure 1-2 shows a typical mobile-phone configuration with a few common optional
packages. I discuss the MIDP in depth in the “Introducing the Mobile Information Device
Profile” section later in this chapter.
Figure 1-2.
The relationship between configurations, profiles, and a few of the packages in a
typical cell phone
Another, increasingly common tuple is based on the CDC package and powers
set-top boxes and other devices. Such a digital media configuration is for higher-end
connected devices, and it incorporates the Foundation Profile as well as the Personal
Profile, and perhaps additional optional packages. Unlike the CLDC-MIDP configuration,
this configuration defines a subset of the Java AWT, bringing a well-understood graphics
library to mobile devices. Figure 1-3 shows a typical configuration based on the CDC for
today's consumer electronics devices.
