Verfügbarkeit: Java programming with CORBA | Technische Universität München

Java programming with CORBA: advanced techniques for building distributed applications

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Bibliographische Detailangaben
Vorheriger Titel:	Vogel, Andreas Java programming with CORBA
Beteiligte Personen:	Brose, Gerald 1968- (VerfasserIn), Vogel, Andreas (VerfasserIn), Duddy, Keith 1967- (VerfasserIn)
Format:	Buch
Sprache:	Englisch
Veröffentlicht:	New York [u.a.] Wiley 2001
Ausgabe:	3. ed.
Schlagwörter:	CORBA Java > Programmiersprache Client-Server-Konzept
Links:	http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&local_base=BVB01&doc_number=009912437&sequence=000001&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA
Umfang:	XLII, 710 S. Ill., graph. Darst.
ISBN:	0471376817

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MARC


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Datensatz im Suchindex

_version_	1819285850559610880
adam_text	JAVA PROGRAMMING ADVANCED TECHNIQUES FOR BUILDING DISTRIBUTED APPLICATIONS GERALD BROSE ANDREAS VOGEL KEITH DUDDY THIRD EDITION WILEY COMPUTER PUBLISHING 16339709 NEW YORK * CHICHESTER * WEINHEIM * BRISBANE * SINCAPORE * TORONTO CONTENTS FOREWORD TO THE FIRST EDITION FOREWORD TO THE SECOND EDITION FOREWORD TO THE THIRD EDITION ACKNOWLEDGMENTS INTRODUCTION ABOUT THE AUTHORS CHAPTER 1 BENEFITS OF JAVA PROGRAMMING WITH CORBA 1.1 WHAT DOES JAVA OFF ER CORBA PROGRAMMERS? 1.1.1 OBJECT-ORIENTED PROGRAMMING LANGUAGE 1.1.2 PORTABILITY OF APPLICATIONS ACROSS PLATFORMS 1.1.3 WEB INTEGRATION 1.1.3.1 PROBLEMS IN TRADITIONAL WEB APPLICATIONS 1.1.3.2 USING JAVA APPLETS 1.1.3.3 JAVA SERVLETS AND JSP 1.1.4 COMPONENT MODELS 1.1.4.1 JAVABEANS 1.1.4.2 ENTERPRISE JAVABEANS 1.2 WHAT DOES CORBA OFFER JAVA PROGRAMMERS? 1.2.1 OMGIDL DEFMED INTERFACES 1.2.2 PROGRAMMING LANGUAGE INDEPENDENCE 1.2.3 LOCATION TRANSPARENCY AND SERVER ACTIVATION XXVII XXIX XXXI XXXIII XXXV XLI 1 2 2 3 4 4 6 7 8 8 9 10 11 11 12 XIV CONTENTS 1.2.4 AUTOMATIC STUB AND SKELETON CODE GENERATION 12 1.2.5 REUSE OF CORBA SERVICES AND FACILITIES 13 1.2.6 VENDOR INDEPENDENCE THROUGH ORB INTEROPERABILITY AND CODE PORTABILITY 14 1.3 JAVA ORBS AND JAVA RMI 14 CHAPTER2 CORBA OVERVIEW 17 2.1 THE OBJECT MANAGEMENT GROUP 18 2.1.1 OMG S GOALS 18 2.1.2 THE ORGANIZATIONAL STRUCTURE OF OMG 19 2.1.2.1 PTC TASK FORCES AND SPECIAL INTEREST GROUPS 19 2.1.2.2 DTC TASK FORCES AND SPECIAL INTEREST GROUPS 21 2.1.2.3 ARCHI TECTURE BOARD SPECIAL INTERES T GROUPS 23 2.1.3 OMG TECHNOLOGY ADOPTION PROCESS 23 2.2 THE OBJECT MANAGEMENT ARCHITECTURE 24 2.2.1 OVERVIEW OF THE OMA 25 2.2.2 CORE OBJECT MODEL 25 2.2.2.1 SCOPE OF THE CORE OBJECT MODEL 26 2.2.2.2 COMPONENTS AND PROFILES 26 2.2.2.3 CONCEPT DEFINITIONS 2 7 2.2.2.4 INTERFACES AND SUBSTITUTABILITY 28 2.2.2.5 INHERITANCE 29 2.2.3 THE REFERENCE MODEL 30 2.2.3.1 OBJECT REQUEST BROKER (ORB) 31 2.2.3.2 OBJECT SERVICES 32 2.2.3.3 COMMON FACILITIES 32 2.2.3.4 DOMAIN INTERFACES 33 2.2.3.5 SPECIFICATION ADOPTION IN THE OMG 33 2.3 COMMON OBJECT REQUEST BROKER ARCHITECTURE (CORBA) 33 2.3.1 OVERVIEW 34 2.3.2 OBJECT MODEL 36 2.3.2.1 SERVANTS AND OBJECT REFERENCES 36 2.3.2.2 TYPES 37 2.3.2.3 INTERFACES 37 2.3.2.4 VALUETYPES AND ABSTRACT INTERFACES 37 2.3.2.5 OPERATION SEMANTICS 38 2.3.2.6 OPERATION SIGNATURES 38 2.3.2.7 ATTRIBUTES 39 2.3.2.8 EXCEPTIONS 39 2.3.3 ORB STRUCTURE 40 2.3.3.1 CLIENT STUBS 41 2.3.3.2 DYNAMIC INVOCATION INTERFACE 41 2.3.3.3 IMPLEMENTATION SKELETON 42 2.3.3.4 DYNAMIC SKELETON INTERFACE (DSI) 42 2.3.3.5 OBJECT ADAPTERS 42 CONTENTS XV 2.3.4 OMG INTERFACE DEFINITION LANGUAGE (IDL) 43 2.3.4.1 LEXICAL ANALYSIS 43 2.3.4.2 MODULES AND INTERFACES 44 2.3.4.3 INHERITANCE 46 2.3.4.4 MULTIPLE INHERITANCE 47 2.3.4.5 TYPESAND CONSTANTS 48 2.3.4.6 OPERATIONS AND ATTRIBUTES 53 2.3.4.7 VALUETYPES 54 2.3.4.8 CONTEXTS 58 2.3.5 ORB AND OBJECT INTERFACES 59 2.3.5.1 STRINGIFIED OBJECT REFERENCES 59 2.3.5.2 MANAGING OBJECT REF ER ENCES 59 2.3.5.3 INITIALIZATION 66 2.3.6 THE PORTABLE OBJECT ADAPTER 67 2.3.6.1 POA OVERVIEW 67 2.3.6.2 POA ARCHITECTURE 68 2.3.6.3 OBJECT AND SERVANT LIFETIMES 69 2.3.6.4 POA POLICIES 71 2.3.6.5 POA LIFE CYCLE 74 2.3.6.6 USING THE POA TO CREATE OBJECT REF ERENCES 77 2.3.6.7 DISCOVERING THE MAPPINGS IN A POA 78 2.3.6.8 THE CURRENT INTERFACE 78 2.3.7 LANGUAGE MAPPINGS 79 2.3.7.1 C 79 2.3.7.2 C++ 79 2.3.7.3 SMALLTALK 80 2.3.7.4 COBOL 80 2.3.7.5 LISP 80 2.3.7.6 PYTHON 80 2.3.8 INTEROPERABILITY 81 2.3.8.1 THE ORB INTEROPERABILITY ARCHITECTURE 81 2.3.8.2 GENERAL INTER-ORB PROTOCOL 81 2.3.8.3 INTERNET INTER-ORB PROTOCOL 82 2.3.8.4 OTHER APPROACHES 82 2.3.9 TVPECODE, ANY, AND DYNAMIC ANY 82 2.3.9.1 ANY 83 2.3.9.2 LANGUAGE MAPPING FOR ANY 83 2.3.9.3 TYPECODE 83 2.3.9.4 DYNANY 87 2.3.10 DYNAMIC INVOCATION AND DYNAMIC SKELETON INTERFACES 90 2.3.10.1 REQUESTS (DU) 90 2.3.10.2 DEFERRED SYNCHRONOUS INVOCATION 91 2.3.10.3 SERVERREQUESTS (DSI) 91 2.3.10.4 NAMED VALUE LISTS AND CONTEXTS 92 2.3.11 INTERFACE REPOSITORY 92 2.3.11.1 THE ABSTRACT BASE INTERFACES 93 XVI CONTENTS 2.3.11.2 NONDATA-TYPE INTERFACES 95 2.3.11.3 DATA TYPE INTERFACES 95 2.3.11.4 IDL DEFINITIONS OF THE IR INTERFACES 96 2.3.11.5 THE MULTIPLY DERIVED INTERFACES 99 2.3.11.6 INTERFACES DERIVED FROM TYPEDEFDEF 102 2.3.11.7 INTERFACES DERIVED FROM IDLTYPE 103 2.3.11.8 INTERFACES DERIVED DIRECTLY FROM CONTAINED 105 2.3.11.9 REPOSITORYLDS 107 CHAPTER 3 OVERVIEW OF JAVA AND JAVA ORBS 109 3.1 INTERFACE, CLASS, AND OBJECT 110 3.2 INHERITANCE 110 3.2.1 CLASSES 110 3.2.2 INTERFACES 112 3.3 METHODS AND EXCEPTIONS 113 3.4PACKAGES 115 3.5OBJECTS 116 3.6 JAVA APPLETS 118 3.7 JAVA SERVLETS 119 3.8 HELLO WORLD EXAMPLE 120 3.8.1 INTERFACE SPECIFICATION 120 3.8.2 IMPLEMENTATION 120 3.8.3 APPLICATION 121 3.8.4 APPLET 122 3.8.5 SERVLET 124 3.9 JAVABEANS 126 3.10 JAVA ORB TERMINOLOGY 129 3.11 CLIENTS AND SERVERS AS JAVA APPLICATIONS 130 3.11.1 STUB AND SKELETON CODE 131 3.11.2 ORB AND OBJECT ADAPTER 132 3.12 CLIENTS AS JAVA APPLETS 133 3.13 CLIENTS AS SERVLETS 133 3.14 SERVERS AS JAVA APPLETS 134 3.15 CLIENTS AND SERVERS IMPLEMENTED WITH NON-JAVA ORBS 138 3.16 STANDARDS AND PRODUCTS 138 CHAPTER 4 A FIRST JAVA ORB APPLICATION 141 4.1 SUMMARY OF THE CORBA DEVELOPMENT PROCESS 142 4.2 ENVIRONMENT SETUP 144 4.3 INTERFACE SPECIFICATION 144 CONTENTS XVII CHAPTER 5 4.4 COMPILING THE IDL 4.5 A CLIENT AS A JAVA APPLICATION 4.5.1 GENERATED JAVA INTERFACE 4.5.2 INITIALIZING THE ORB 4.5.3 OBTAINING AN OBJECT REFERENCE 4.5.4 INVOKING THE OPERATION 4.5.5 COMPILING AND EXECUTING THE CLIENT 4.6 A CLIENT AS AN APPLET 4.6.1 ANCHORING THE APPLET INTO HTML 4.6.2 INITIALIZING THE APPLET 4.6.3 LOCATING OBJECTS 4.6.4 HANDLING APPLET EVENTS 4.6.5 COMPILING AND EXECUTING THE APPLET 4.7 AN OBJECT IMPLEMENTATION 4.8 A SERVER 4.8.1 COMPILING AND STARTING THE SERVER 4.9 EXTENDING THE HELLO WORLD EXAMPLE 4.9.1 INTERFACE SPECIFICATION 4.9.2 PARAMETER MAPPING 4.9.3 A CLIENT 4.9.3.1 INVOKING THE OPERATION 4.9.4 AN APPLET 4.9.4.1 INVOKE THE OPERATION 4.9.5 OBJECT IMPLEMENTATION OMG IDL TO JAVA MAPPING 5.1 RESERVED NAMES 5.2 BASIC DATA TYPES 5.2.1 BOOLEAN 5.2.2 CHAR AND WIDE CHAR 5.2.3 OCTET 5.2.4 INTEGER TYPES 5.2.5 FLOATING-POINT T^PES 5.2.6 FIXED-POINT 5.2.7 STRING TYPES 5.3 HOLDER CLASSES 5.4 HELPER CLASSES 5.5 ENUMS 5.6 STRUCT 5.7 UNIONS 5.8 TVPEDEF 145 146 147 147 148 149 149 150 150 151 152 153 154 155 156 158 159 159 160 160 161 162 163 164 167 167 168 168 168 169 169 169 169 169 170 171 172 174 174 176 XVIII CONTENTS CHAPTER 6 5.9 EXCEPTION TYPE 5.9.1 USER-DEFINED EXCEPTIONS 5.9.2 CORBA SYSTEM EXCEPTIONS 5.10 ARRAYS 5.11 SEQUENCES 5.12 THE ANY TYPE 5.12.1 GENERAL METHODS ON THE CLASS ANY 5.12.2 IDL PREDEFMED TYPES 5.12.3 USER-DEFINED TYPES 5.13 VALUETYPES 5.13.1 STATEFUL VALUETYPES 5.13.2 ABSTRACT VALUETYPES 5.13.3 VALUETYPE INHERITANCE 5.13.4 VALUE BOX TVPES 5.14 INTERFACES 5.14.1 PORTABILITY ISSUES 5.14.2 JAVA ORB PORTABILITY INTERFACES 5.14.2.1 A PORTABLE CORBA OBJECT IMPLEMENTATION 5.14.2.2 PORTABLE STREAMS 5.14.3 CLIENT-SIDE MAPPING 5.14.4 SERVER-SIDE MAPPING 5.14.4.1 INHERITANCE VERSUS TIEAPPROACH 5.14.4.2 OBJECT LIFETIME AND THREADING 5.15 CONSTANTS 5.15.1 CONSTANTS WITHIN INTERFACES 5.15.2 CONSTANTS OUTSIDE INTERFACES 5.16 ATTRIBUTES 5.17 OPERATIONS 5.17.1 PARAMETER SEMANTICS 5.17.2 MAPPING FROM OPERATIONS TO METHODS 5.17.3 PORTABLE STUB IMPLEMENTATION 5.17.4 PORTABLE SKELETON IMPLEMENTATION 5.17.5 PARAMETER MANAGEMENT 5.18 INHERITANCE 5.19 MODULES AND NAME-SCOPING RULES 5.20 MAPPING FROM JAVA TO IDL 5.20.1 THE RMI/IDL SUBSET OF JAVA ORB RUN-TIME SYSTEM 6.1 OBJECT INTERFACE 6.1.1 GET_INTERFACE() 6.1.2 IS_NIL() 6.1.3 DUUELICATEO AND RELEASEO 177 177 179 179 182 184 184 185 185 188 188 190 190 191 192 194 196 197 197 201 205 206 208 210 210 210 211 211 211 213 213 215 218 218 221 223 224 227 228 229 229 229 CONTENTS XIX 6.1.4 IS_A() 230 6.1.5 NON_EXISTENT() 230 6.1.6 IS_EQUIVALENTO 230 6.1.7 HASHO 231 6.1.8 GET_POLICYO 231 6.1.9 GET_DOMAIN_MANAGERS() 231 6.1.10 SET_POLICY_OVERRIDES 232 6.2 ORB INTERFACE 232 6.2.1 ORB INITIALIZATION 232 6.2.2 CONVERTING OBJECT REFERENCES INTO STRINGS AND VICE VERSA 233 6.2.3 OBTAINING A POA REFERENCE 234 6.3 PORTABLE OBJECT ADAPTER INTERFACE 235 6.3.1 REFERENCE CREATION 235 6.3.2 IMPLICIT ACTIVATION AND DEACTIVATION 235 6.3.3 CHILD POAS 238 6.4 IVPECODE INTERFACE 240 6.4.1 TYPES USED BY TYPECODES 240 6.4.2 IDENTIFYING AND COMPARING TYPECODES 243 6.4.3 NAVIGATING TYPECODES 244 6.4.3.1 METHODS FOR STRUCTURED TYPES 244 6.4.3.2 METHODS FOR UNIONS 245 6.4.3.3 METHODS FOR TEMPLATE TYPES 245 6.4.3.4 METHODS FOR FIXED POINT TYPES 246 6.4.3.5 METHODS FOR VALUETYPES 246 6.4.4 CREATING TYPECODES 247 6.4.4.1 STRUCTURED TYPES, ALIASES, VALUETYPES, AND INTERFACES 247 6.4.4.2 TEMPLATE TYPES 250 6.4.4.3 TYPES CONTAINING RECURSION 251 6.5 TYPES USED FOR DYNAMIC INVOCATIONS 252 6.5.1 FLAGS 252 6.5.2 NAMEDVALUES 253 6.5.3 NAMEDVALUE LISTS 253 6.5.3.1 ADDING ELEMENTS TO NVLISTS 254 6.5.3.2 LIST MANAGEMENT 255 6.5.4 ENVIRONMENT 255 6.5.5 CONTEXT INTERFACE 256 6.5.5.1 CREATING A CONTEXT OBJECT 256 6.5.5.2 MANIPULATING A CONTEXT OBJECT 257 6.5.5.3 MANIPULATING THE CONTEXT OBJECT TREE 258 6.6 DYNAMIC INVOCATION INTERFACE 259 6.6.1 CREATING A REQUEST 259 6.6.2 REQUEST INTERFACE 260 6.6.2.1 INITIALIZING A REQUEST 261 6.6.2.2 INVOKING A REQUEST SYNCHRONOUSLY 262 XX CONTENTS 6.6.2.3 INVOKING A REQUEST ASYNCHRONOUSLY 263 6.6.2.4 INVOKING A ONE-WAY OPERATION REQUEST 263 6.6.2.5 INVOKING MULTIPLE REQUESTS 264 6.7 DYNAMIC SKELETON INTERFACE 264 6.7.1 SERVERREQUEST INTERFACE 265 6.7.2 DYNAMICLMPLEMENTATION CLASS 266 6.8 REGISTERING VALUETYPE FACTORIES 266 CHAPTER 7 DISCOVERING SERVICES 269 7.1 THE CORBA NAMING SERVICE 269 7.1.1 OVERVIEW OF THE NAMING SERVICE 2 70 7.1.2 INTERFACE SPECIFICATION 271 7.1.2.1 THE NAME TYPE 271 7.1.2.2 BINDINGS 272 7.1.2.3 ADDING NAMES TO A CONTEXT 2 72 7.1.2.4 REMOVING NAMES FROM A CONTEXT 2 74 7.1.2.5 NAME RESOLUTION 2 74 7.1.2.6 EXCEPTIONS 275 7.1.2.7 CONTEXT CREATION 276 7.1.2.8 CONTEXT DESTRUCTION 276 7.1.2.9 BROWSING CONTEXTS 2 76 7.1.2.10 BINDING ITERATORS 277 7.1.2.11 CONVERTING NAMES 278 7.1.3 USING THE NAMING SERVICE FROM A JAVA CLIENT 280 7.1.4 THE JAVA NAMING AND DIRECTORY INTERFACE 284 7.2 TRADING SERVICE 285 7.2.1 OVERVIEW OF TRADING 285 7.2.1.1 SERVICE TYPES AND SERVICE OFF ERS 289 7.2.1.2 EXPORT AND LOOKUP OF SERVICE OFF ERS 289 7.2.1.3 TRADER FEDERATION 290 7.2.2 OVERVIEW OF THE TRADING SERVICE INTERFACES 290 7.2.2.1 SERVICE TYPE REPOSUEORY 290 7.2.2.2 TRADERCOMPONENTS * FINDING THE RIGHT INTERFACE 295 7.2.2.3 LOOKUP 296 7.2.2.4 ITERATORS 298 7.2.2.5 REGISTER 299 7.2.2.6 LINK 302 7.2.2.7 ADMIN 302 7.2.2.8 PROXIES AND DYNAMIC PROPERTIES 302 7.2.3 EXPORTING A SERVICE OFFER 303 7.2.3.1 IMPLEMENTING THE PRINTER INTERFACE 304 7.2.3.2 IMPLEMENTING THE PRINTER SERVER 308 7.2A FINDIN G AN OBJECT USING A TRADER 314 7.2.4.1 POSSIBLE ENHANCEMENTS TO THE PRINT CLIENT 320 7.3 BOOTSTRAPPING 320 CONTENTS XXI CHAPTER 8 BUILDING APPLICATIONS 323 8.1 APPLICATION SPECIFICATION 324 8.1.1 IDL SPECIFICATION 324 8.1.2 COMPILING THE IDL SPECIFICATION 327 8.2 IMPLEMENTING OBJECTS 328 8.2.1 IMPLEMENTING THE MEETING OBJECT 328 8.2.2 IMPLEMENTING THE ROOM OBJECT 329 8.3 BUILDING SERVERS 331 8.3.1 INITIALIZING THE ORB 333 8.3.2 CREATING AND ACTIVATING A SERVANT 334 8.3.3 REGISTERING WITH THE NAMING SERVICE 334 8.3.4 ENTERING THE DISPATCH LOOP 335 8.4 BUILDING FACTORIES 335 8.4.1 MEETING FACTORY OBJECT IMPLEMENTATION 336 8.4.2 MEETING FACTORY SERVER 336 8.5 STARTING SERVERS 338 8.6 BUILDING CLIENTS 339 8.6.1 CLIENT AS APPLET 342 8.6.2 CLIENT AS APPLICATION 343 8.6.3 CLIENT-TYPE INDEPENDENT CODE 345 8.6.3.1 OVERVIEW OF METHODS 345 8.6.3.2 VARIABLE DECLARATIONS 346 8.6.3.3 CONSTRUCTORS 34 7 8.6.3.4 INITJGUIO 348 8.6.3.5 INITJROM_NS() 350 8.6.3.6 VIEW() 350 8.6.3.7 CANCELO 354 8.6.3.8 PROCESS _SLOT() 355 8.6.3.9 BOOK() 355 8.6.3.10 ACTIONPERFORMEDO 356 8.7 EXTENSIONS TO THE EXAMPLE APPLICATION 357 CHAPTER 9 ADVANCED FEATURES 359 9.1 THE ANY TYPE AND TYPECODES 359 9.1.1 INTERFACE SPECIFICATION 360 9.1.2 OBJ ECT IMPLEMENTATION 360 9.1.3 CLIENT IMPLEMENTATION 362 9.1.3.1 INITIALIZATION AND INVOCATION 362 9.1.3.2 OBTAINING TYPECODES 363 9.1.3.3 UNPACKING THE RESULTS 365 9.2 INTERFACE REPOSITORY AND DYNAMIC INVOCATION INTERFACE 366 9.2.1 INITIALIZING THE ORB 367 9.2.2 BROWSING THE INTERFACE REPOSITORY 368 XXII CONTENTS 9.2.3 A SIMPLE UNPARSER 9.2.4 CREATING REQUESTS 9.2.5 INITIALIZING THE REQUEST 9.2.6 INVOKING REQUESTS AND GETTING RESULTS 9.2.7 EXECUTING THE CLIENT 9.3 DYNAMIC SKELETON INTERFACE 9.4 TIE MECHANISM 9.5 PORTABLE INTERCEPTORS 9.5.1 THE PORTABLE INTERCEPTORS SPECIFICATION 9.5.1.1 REQUEST INTERCEPTORS 9.5.1.2 IOR INTERCEPTORS 9.5.2 PROGRAMMING WITH INTERCEPTORS 9.5.3.1 WRITING THE INTERCEPTOR 9.5.3.2 REGISTERING THE INTERCEPTOR 9.6 APPLET SERVER 9.6.1 THE APPLICATION 9.6.2 THE INTERFACE SPECIFICATION 9.6.3 STRUCTURE OF THE IMPLEMENTATION 9.6.4 OBJECT IMPLEMENTATION 9.6.5 APPLET IMPLEMENTATION 9.6.5.1 INITIALIZING THE GUI 9.6.5.2 INITIALIZING THE ORB AND OBJECT CREATION 9.6.6 EXECUTING THE APPLICATION 370 371 372 374 375 377 380 385 386 387 392 392 393 395 396 397 397 398 399 400 401 403 410 CHAPTER 10 PRACTICAL POA PROGRAMMING 10.1 POA POLICIES REVISITED 10.2 MANAGING OBJECTS WITH PERSISTENT STATE 10.2.1 A MULTIUSER MEETING APPLICATION 10.2.2 THE IDL INTERFACES 10.2.3 COMMON DATA STRUCTURES 10.2.4 SERIALIZING OBJECT REFERENCES 10.2.5 IMPLEMENTING THE BUILDING SERVICE 10.2.5.1 IMPLEMENTING THE INTERFACES 10.2.5.2 CONFIGURING THE POA 10.2.6 THE MEETING SERVICE 10.2.6.1 USING DEFAULT SERVANTS 10.2.6.2 IMPLEMENTING THE DEFAULT SERVANT 10.2.6.3 IMPLEMENTING THE SERVER 10.2.6.4 IMPLEMENTING THE FACTORY 10.2.7 THE DIGITAL SECRETARY SERVICE 10.2.7.1 IMPLEMENTING THE SERVER 10.2.7.2 IMPLEMENTING THE INTERFACE 413 413 415 417 419 424 427 429 430 436 444 446 447 452 454 456 458 462 CONTENTS XXIII CHAPTER 11 EVENTS 11.1 EVENTS 11.2 CORBA EVENT SERVICE CONCEPTS 11.2.1 PUSH MODEL COMMUNICATIONS 11.2.2 PULL MODEL COMMUNICATIONS 11.2.3 MIXED-MODE COMMUNICATIONS 11.2.4 FEDERATED EVENT CHANNELS 11.2.5 EVENT TYPES 11.3 INTERFACE SPECIFICATIONS 11.3.1 MODULE COSEVENTCOMM 11.3.1.1 PUSH MODEL 11.3.1.2 PULL MODEL 11.3.2 MODULE COSEVENTCHANNELADMIN 11.3.2.1 PROXY INTERFACES 11.3.3 OBTAINING A PROXY 11.3.4 TYPED EVENT COMMUNICATION 11.3.4.1 TYPED EVENT TYPES 11.3.4.2 THE TYPED PROXY INTERFACES 11.3.4.3 THE TYPED ADMIN INTERFACES 11.4 AN EVENT SERVICE EXAMPLE 11.4.1 IMPLEMENTING THE SUPPLIER 11.4.2 IMPLEMENTING THE CONSUMER 11.5 THE NOTIFICATION SERVICE 11.5.1 NOTIFICATION SERVICE ARCHITECTURE AND INTERFACES 11.5.2. STRUCTURED EVENTS 11.5.3 EVENT FILTERING 11.5.3.1 FILTERS 11.5.3.2 MAPPING FILTERS 11.5.4 QUALITY OF SERVICE 11.6 A NOTIFICATION SERVICE EXAMPLE 11.6.1 IMPLEMENTING A STRUCTURED EVENT SUPPLIER 11.6.2 IMPLEMENTING A STRUCTURED EVENT CONSUMER 11.7 JAVA EVENTS AND CORBA 11.7.1 JAVA EVENTS 11.7.2 INFOBUS 11.7.2.1 MEMBERSHIP 11.7.2.2 LISTENINGFOR INFOBUS EVENTS 11.7.2.3 RENDEZVOUS 11.7.2.4 ACCESS TO DATA ITEMS 11.7.3 JAVA MESSAGE SERVICE 11.7.3.1 JMS MESSAGES 11.7.3.2 MESSAGE SELECTORS 11.7.3.3 JMS MESSAGING DOMAINS 469 470 472 473 473 474 475 475 476 476 476 477 478 478 480 481 482 483 484 486 488 492 496 497 503 505 506 508 509 512 512 517 522 523 524 524 525 526 528 528 529 530 530 XXIV CONTENTS T 11.7.4 COMPARISON OF THE VARIOUS EVENT MODELS 531 11.7.5 DISTRIBUTING JAVA EVENTS WITH CORBA 531 CHAPTER 12 SECURITY 533 12.1 APPLET SECURITY ISSUES 534 12.2 FIREWALLS 535 12.2.1 TYPES OF FIREWALLS 536 12.2.1.1 PACKET FILTERING 537 12.2.1.2 APPLICATION-LEVEL GATEWAYS 539 12.2.2 CORBA AND FIREWALLS 540 12.2.2.1 HTTP TUNNELING 541 12.2.2.2 GIOP PROXIES 542 12.3 IIOP OVER SECURE SOCKET LAYER 544 12.3.1 SSL 545 12.3.2 PUBLIC KEY INFRASTRUCTURES 547 12.4 OVERVIEW OF THE CORBA SECURITY SERVICE 548 12.4.1 OVERVIEW OF SECURITY GOALS AND TERMINOLOGY 548 12.4.1.1 SECURITY REQUIREMENTS 548 12.4.1.2 THREATS TO SECURITY 549 12.4.1.3 FEATURES OF THE SECURITY SERVICE 550 12.4.1.4 SECURITY CONFORMANCE LEVELS 550 12.4.2 SECURITY MODEL 551 12.4.2.1 PRINCIPALS AND SECURITY ATTRIBUTES 551 12.4.2.2 NON-REPUDIATION SERVICES 554 12.4.2.3 SECURITY DOMAINS 555 12.4.3 SECURITY MODEL SEEN BY APPLICATIONS 556 12.4.3.1 FINDING THE SECURITY FEATURES OF AN ORB 556 12.4.3.2 AUTHENTICATION OFA USER PRINCIPAL 556 12.4.3.3 SELECTING PRIVILEGES 557 12.4.3.4 MAKING A SECURE INVOCATION 55 7 12.4.3.5 NON-REPUDIATION 558 12.4.4 OVERVIEW OF APPLICATION SECURITY INTERFACES 558 12.4.4.1 COMMON SECURITY TYPES 559 12.4.4.2 SECURITY LEVEL 1 560 12.4.4.3 SECURITY LEVEL 2 560 12.4.4.4 CURRENT 560 12.4.4.5 REQUIREDRIGHTS 561 12.4.4.6 PRINCIPALAUTHENTICATOR 562 12.4.4.7 CREDENTIALS 562 12.4.4.8 OBJECT 563 12.4.5 COMMON SECURE INTEROPERABILITY (CSI) 563 CHAPTER 13 THE PERSISTENT STATE SERVICE 567 13.1PSSCONCEPTS 569 CONTENTS XXV 13.2 A PSS EXAMPLE 571 13.2.1 PSDL DEFINITIONS 572 13.2.2 SERVANT AND SERVER IMPLEMENTATION 574 13.3 THE PERSISTENT STATE DEFINITION LANGUAGE 578 13.3.1 ABSTRACT STORAGETYPES 579 13.3.2 ABSTRACT STORAGE HOMES 580 13.3.3 CATALOGS 581 13.3.4 IMPLEMENTING STORAGE OBJECTS 582 13.3.5 IMPLEMENTING STORAGE HOMES 583 13.4 PSS INTERFACES 583 CHAPTER 14 CORBA COMPONENTS 589 14.1 THE COMPONENT MODEL 590 14.1.1 FACETS 591 14.1.2 CONFIGURATION AND COMPOSITION PORTS 595 14.1.2.1 ATTRIBUTES AND INHERITANCE 595 14.1.2.2 RECEPTACLES 596 14.1.2.3 EVENT SOURCES AND SINKS 598 14.1.3 COMPONENT HOMES 601 14.2 THE COMPONENT CONTAINER 603 14.2.1 COMPONENT CATEGORIES 604 14.2.2 CONTAINER API TYPES 607 14.2.2.1 THE API TYPE SESSION 608 14.2.2.2 THE ENTITY CONTAINER API TYPE 610 14.3 COMPONENT IMPLEMENTATION 611 14.3.1 COMPOSITIONS 612 14.3.1.1 PERSISTENT STATE 614 14.4 COMPONENT PACKAGING AND DEPLOYMENT 617 14.4.1 SOFTWARE PACKAGE DESCRIPTOR 618 14.4.2 COMPONENT DESCRIPTOR 621 14.4.3 COMPONENT ASSEMBLY DESCRIPTOR 624 14.4.4 PROPERTY FILE DESCRIPTOR 627 14.5 CORBA COMPONENTS VERSUS EJB 628 14.5.1 INTEROPERABILITY 629 14.5.1.1 VENDOR INTEROPERABILITY 629 14.5.1.2 LANGUAGE INTEROPERABILITY 630 14.5.2 COMPONENT MODELS AND CONTAINERS 631 CHAPTER 15 PERFORMANCE, SCALABILITY, AND MANAGEMENT 633 15.1 SCALABILITY ISSUES 634 15.1.1 REFINING THE OBJECT MODEL 635 15.1.2 THREADING MODELS 640 15.1.2.1 THREADING IN CLIENTS 640 XXVI CONTENTS 15.1.2.2 MULTITHREADED CLIENTS 15.1.2.3 THREADING IN SERVERS 15.1.3 DISTRIBUTED CALLBACKS 15.1.4 ITERATORS 15.1.4.1 PULL ITERATORS 15.1.4.2 PUSH ITERATORS 15.1.5 CLIENT-SIDE CACHING 15.1.6 MONITORING PERFORMANCE 15.1.6.1 A TEST CLIENT TO DRIVE THE APPLICATION 15.1.6.2 ANALYSIS OF THE PERFORMANCE DATA 15.2 MANAGEMENT 15.2.1 DISTRIBUTED GARBAGE COLLECTION 15.2.2 DESIGN OF MANAGEMENT INTERFACES 15.2.3 IMPLEMENTING A MANAGEMENT TOOL 15.2.4 IMPLEMENTING MANAGED OBJECTS 15.2.5 USING THE MANAGEMENT TOOL 15.3 SUMMARY GLOSSARY INDEX 641 646 648 652 653 657 661 665 668 669 670 671 673 676 684 687 688 689 695
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subject_GND	(DE-588)4403709-0 (DE-588)4401313-9 (DE-588)4252624-3
title	Java programming with CORBA advanced techniques for building distributed applications
title_auth	Java programming with CORBA advanced techniques for building distributed applications
title_exact_search	Java programming with CORBA advanced techniques for building distributed applications
title_full	Java programming with CORBA advanced techniques for building distributed applications Gerald Brose ; Andreas Volgel ; Keith Duddy
title_fullStr	Java programming with CORBA advanced techniques for building distributed applications Gerald Brose ; Andreas Volgel ; Keith Duddy
title_full_unstemmed	Java programming with CORBA advanced techniques for building distributed applications Gerald Brose ; Andreas Volgel ; Keith Duddy
title_old	Vogel, Andreas Java programming with CORBA
title_short	Java programming with CORBA
title_sort	java programming with corba advanced techniques for building distributed applications
title_sub	advanced techniques for building distributed applications
topic	CORBA (DE-588)4403709-0 gnd Java Programmiersprache (DE-588)4401313-9 gnd Client-Server-Konzept (DE-588)4252624-3 gnd
topic_facet	CORBA Java Programmiersprache Client-Server-Konzept
url	http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&local_base=BVB01&doc_number=009912437&sequence=000001&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA
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