Index_O

O

OASIS group (standards body), 132

document templates and standards, 132

working group for consistent interface, 263

Object copying vs. object references, 117, 285

Object model, marginalization of, 134-136

Object-oriented architectural style, 59

Object-oriented environment, 10, 59, 131

Object references vs. object copying, 117, 285

Object representation, flat vs. rich, 112

Observable class (java.util), 178-180, 189, 191

Observable component, 193, 195-196

Observable interface, 175, 179

Observer component, 193, 195-196

Observer interface, 174, 180, 189-190

Observer maintenance (listing), 198

Observer pattern, 11, 172, 187-204

Asynchronous Business Process pattern and, 167

class diagram, 192

collaborations, 194

components , 193

deployment diagram, 196

Event Monitor pattern and, 185, 203

Faux Implementation pattern and, 204

implementing using Web Services, 195-200

and Java data models, 189-191

Physical Tiers pattern and, 204

in practice, 188-192

Publish/Subscribe pattern and, 203, 205, 222

requirements fulfilled by, 201

in UDDI version 3, 191-192

Observer structure, 192-194

ObserverDemo class, 189

Observers

building, 196-197

in the case study, 200-202

preparing to implement, 194-195

registration and notification, 197-200

OMG (Object Management Group) Web site, 205

One-to-many Publish/Subscribe patterns, 6

Object-oriented programmers, adapting to Web Services, 9-10

Openwings project, definition of a service, 36-37

OQL (Object Query Language), 93, 121

ORB-based CORBA, 35, 43, 48, 205, 227

Order-to-fulfillment process, 3-4, 19

Order placement (case study), 142

Order process task flow illustration, 155

Order processing, 3-4, 19, 154-155, 162, 165, 176

OrderCollectionImpl.java, 165

OrderImpl business object, 162

OrderStatusInfoSnapshot.java, 178, 181, 184

Out-of-stock events, 176

Overloading of methods , 124