object bus, 436
Object Management Group (OMG), 436
Object Request Broker (ORB), 436
object serialization, 25
object transaction service, 282
object-relational mapping, 120
ObjectMessage, 237
one-to-n relationship, 158
one-to-one relationship, 152
onMessage, 248, 265, 275, 384
optimistic locking pattern, 406