The message exchanges we described in the previous section can be understood better
by looking at the ServiceMix console logging shown in the following screenshot:
Sample Service Aggregation
[ 366 ]
Summary
MOM has been serving as a great enabler for creating loosely coupled applications
for many years. Now MOM provides us the EAI pattern to integrate not only
applications but also services and components in a seamless manner.
Distributed components are the norm in today's enterprise computing, aggregating,
and orchestrating the message flows across such multiple components provide us
with a new flexibility in defining business process??”by separating out individual
services into multiple components and thus reducing the overall complexity of
the process.
We use the "divide and rule" principle to manage the complexity by splitting out
the functionality into multiple components and services. However, then these
distributed components have to integrate together to provide aggregate or composite
services which we can do at the ESB-level. You have seen such a sample in
this chapter.
Pages:
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480