Index_E


E

EAI (Enterprise Application Integration), 2, 170-171, 178
ebXML (standards body), 43, 132
business process definition, 132
business process standards, 144
document templates and standards, 132
working group for consistent interface, 263
EJB containers, 28, 33
EJB environment, 233
EJB example class listing, 101
EJB patterns, 101-102, 108
EJBs (Enterprise JavaBeans) 28, 33, 68, 101-103, 106-109, 119
Apache Axis private instance variables for, 289
for business objects, 102
serialization and deserialization of, 109, 111
Email-based notification, 154, 191
Emulation, 248-249, 263
Enterprise application integration, 2, 170-171, 178
Environment for using this book, installing, 311-313
Equals method, on information snapshot, 182
Event Channel pattern (CORBA), 205
Event determination, client control of, 11
Event forwarding through physical tiers, 235
Event monitor, 11
application invocation of, 180
in the case study, 182-184
dangers of using, 177-178
explained, 169-170
on external services, 183
implementation class diagram, 179
implementing, 178-182
for integrating two application, 173
invoking, 179-180
many components using one instance of, 172
Observable interface, 175
places where clients may use, 182
posting changes to event bus, 171
in practice, 169-172
preparing to implement, 176-178
shortcomings of, 187
typically on its own thread, 175
Web Services and, 171-172
Event Monitor pattern, 169-186
Asynchronous Business Process pattern and, 167
collaborations, 175
components, 173-174
Observer pattern and, 185, 203
Publish/Subscribe pattern and, 176-177, 185, 222
structure, 172-175
Event publishing. See Publish/Subscribe pattern
Event service, 207-208, 235
as an application component, 11
implementation listing, 216-217
implementing, 215-217
with new subscriber, 239-241
publishing an event to, 218-219
registering with, 217-218, 257
Event subscriber (application-side) listing, 237
Event subscriber class diagram, 235
Event topics, 209-210
EventMonitor class, 174-177
EventMonitor class polling frequency, 176-177
EventService component (Publish/Subscribe), 210, 212
EventService interface, 207
EventService Web service, 214, 218, 253
EventServiceImpl component (Publish/Subscribe), 212
Examples in this book, deploying, 317
Execution time, and client's pain threshold, 159
Extents (API), 120
External Business Process patterns, calling, 159
External dependencies, event monitors and, 178
External integration projects, 5
External services, event monitors on, 183
Extreme programming, faux implementation and, 246



Web Service Patterns
Web Services Patterns: Java Edition
ISBN: 1590590848
EAN: 2147483647
Year: 2003
Pages: 190

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