Understanding SCA (Service Component Architecture)

Cover......Page 1
Contents......Page 8
Preface......Page 20
1 INTRODUCING SCA......Page 24
 SCA and Enterprise Architectures......Page 28
  Services......Page 31
  Components......Page 34
  Composites......Page 35
  The Domain......Page 37
 Implementing Components......Page 44
  Properties......Page 45
  References......Page 47
 Assembling Composites......Page 49
  Binding Services and References......Page 50
  Composites as a Unit of Deployment......Page 52
 Deploying to a Domain......Page 53
  The Deployment Process......Page 55
 Domain Constraints......Page 57
 SCA and Web Services......Page 58
 Summary......Page 63
2 ASSEMBLING AND DEPLOYING A COMPOSITE......Page 64
 The LoanApplication Composite......Page 65
 Defining Service Interfaces......Page 67
  Using Web Services Description Language (WSDL)......Page 68
  Remotable Versus Local Services......Page 72
 Creating Component Implementations......Page 74
  Injection Styles......Page 77
  Defining Properties......Page 81
 Assembling the LoanApplication Composite......Page 82
 Binding a Web Service Endpoint......Page 85
 Packaging the LoanApplication Composite......Page 86
 Using Fabric3......Page 88
  Build and Deploy the Application......Page 89
 Summary......Page 90
3 SERVICE-BASED DEVELOPMENT USING JAVA......Page 92
 Service-Based Development......Page 93
  Protocol Abstraction and Location Transparency......Page 94
 Designing Remotable Services......Page 96
 Coarse-Grained Services......Page 100
  Using WSDL for Service Contracts......Page 102
  Service Contracts and Data Binding......Page 104
  Pass-By-Value Parameters......Page 108
  @AllowsPassByReference......Page 110
 Asynchronous Interactions......Page 111
 Callbacks......Page 114
  Exception Handling, Non-Blocking Operations, and Callbacks......Page 118
 Designing Local Services......Page 119
 Component Scopes......Page 121
  Component Implementation Instances......Page 122
  Stateless-Scoped Components......Page 123
  Composite-Scoped Components......Page 124
  Initialization and Destruction Notifications......Page 126
  Eager Initialization......Page 127
 Testing Components......Page 128
 Summary......Page 131
 Conversational Interactions......Page 132
  A Conversation......Page 134
  Conversational Services......Page 137
 Implementing Conversational Services......Page 138
  Conversation-Scoped Implementations......Page 139
  Custom State Management......Page 141
  Expiring Conversations......Page 143
  Non-Blocking Invocations......Page 144
  Callbacks......Page 146
  Callbacks to Conversational and Stateless Clients......Page 147
 Conversation Propagation......Page 149
 Summary......Page 152
 Composition......Page 154
 The Composite Implementation Type......Page 157
 Service Promotion......Page 160
  Service Bindings......Page 164
 Reference Promotion......Page 166
  Reference Bindings......Page 170
 Composite Properties......Page 173
  Configuring Composite Properties......Page 176
  Multivalued Properties......Page 177
  Using Complex Property Types......Page 178
  Referencing Complex Property Values......Page 182
  Services and References......Page 183
  Properties......Page 186
 Inclusion......Page 187
 Summary......Page 189
 Policy Examples......Page 190
 SCA Policy in Brief......Page 191
 Intents......Page 192
 PropagatesTransaction—An Example of a Required Intent......Page 193
 policySets......Page 194
  How @appliesTo Is Used......Page 195
  Finding the Right Policy Set......Page 196
 Wire Validity......Page 198
 WS-Policy......Page 199
 Policies for One-Way Messaging......Page 202
 Qualified Intents......Page 204
 Profile Intents......Page 205
  Security Intents......Page 206
 Transaction Intents......Page 207
 Miscellaneous Intents......Page 208
 Summary......Page 210
 Wiring to Multiple Service Providers......Page 212
  The  Element......Page 215
  Multiplicity and Callbacks......Page 217
 Automated Wiring: Autowire......Page 219
  Autowire and Composition......Page 223
 Summary......Page 225
8 BINDINGS......Page 226
 Interoperable Communications Outside the Domain: The Web Service Binding......Page 227
  Using WSDL as the Interface Definition Language......Page 228
  Non-Blocking Interactions Using Web Services......Page 233
  Callbacks and Conversations with Web Services......Page 234
  One-Way Messaging with JMS......Page 235
  Operation Selection......Page 240
  Message Data Binding......Page 241
  Request-Response Messaging with JMS......Page 242
  Performing Callbacks with JMS......Page 246
  Using Publish-Subscribe Messaging Patterns......Page 249
 Using Bindings for Communicating Within a Domain......Page 250
 Bindings Overrides......Page 251
 Summary......Page 253
 The Role of a Domain......Page 254
  Management......Page 255
  Artifact Sharing......Page 256
  Policy Administration......Page 259
  Communications......Page 260
 Types of Domains......Page 261
  Local Domains......Page 262
  Distributed Domains......Page 263
  Federated Domains......Page 267
 Contributions......Page 268
  The Contribution Archive......Page 270
  Artifact Sharing......Page 271
  Deployment Composites......Page 276
  Structuring Contributions......Page 278
 The Domain Composite......Page 279
  Add to Domain Composite......Page 280
 Deploying Policies......Page 288
 Summary......Page 289
  History......Page 290
  A Language for Web Services......Page 291
  Using BPEL with SCA......Page 293
 Using BPEL for the Loan Service......Page 294
  Symmetry of Partner Link Types......Page 297
  Static Control Flow Analysis with SCA BPEL......Page 298
  Partner Link Types as Interfaces......Page 299
 SCA Extensions to BPEL......Page 301
  SCA Properties......Page 302
  References with Multiplicity......Page 303
 Summary......Page 307
11 PERSISTENCE......Page 308
 Using JDBC......Page 312
  DataSources and Transaction Policy......Page 313
 Using JPA......Page 321
  The Basics: Object Lifecycles and the Persistence Context......Page 322
  Transaction-Scoped Persistence Contexts......Page 324
  JPA and Conversational Services......Page 327
  Accessing the EntityManagerFactory......Page 331
 Summary......Page 332
 Web Components......Page 334
  Configuring a Web Component......Page 336
  Packaging and Deploying a Web Component......Page 337
 Java Server Pages and the SCA Tag Library......Page 339
 Asynchronous Interactions......Page 341
 Accessing Conversation Services......Page 343
 Defining a Component Type......Page 346
 Summary......Page 347
 B......Page 348
 C......Page 349
 D......Page 350
 F......Page 351
 J-K......Page 352
 M......Page 353
 P......Page 354
 R......Page 355
 T......Page 356
 X-Y-Z......Page 357