1、raising standards worldwide NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW BSI Standards Publication BS ISO/IEC 19500-1:2012 Information technology Object Management Group Common Object Request Broker Architecture (CORBA) Part 1: InterfacesBS ISO/IEC 19500-1:2012 BRITISH STAN
2、DARD National foreword This British Standard is the UK implementation of ISO/IEC 19500-1:2012. The UK participation in its preparation was entrusted to Technical Committee IST/15, Software and systems engineering. A list of organizations represented on this committee can be obtained on request to it
3、s secretary. This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. The British Standards Institution 2012. Published by BSI Standards Limited 2012 ISBN 978 0 580 65980 5 ICS 35.080 Compliance with a British Standar
4、d cannot confer immunity from legal obligations. This British Standard was published under the authority of the Standards Policy and Strategy Committee on 30 November 2012. Amendments issued since publication Date Text affectedBS ISO/IEC 19500-1:2012Reference number ISO/IEC 19500-1:2012(E) ISO/IEC 2
5、012INTERNATIONAL STANDARD ISO/IEC 19500-1 First edition 2012-04-15 Information technology Object Management Group Common Object Request Broker Architecture (CORBA) Part 1: Interfaces Technologies de linformation OMG (Object Management Group) CORBA (Common Object Request Broker Architecture) Partie 1
6、: Interfaces BS ISO/IEC 19500-1:2012 ISO/IEC 19500-1:2012(E) COPYRIGHT PROTECTED DOCUMENT ISO/IEC 2012 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfil
7、m, without permission in writing from either ISO at the address below or ISOs member body in the country of the requester. ISO copyright office Case postale 56 CH-1211 Geneva 20 Tel. + 41 22 749 01 11 Fax + 41 22 749 09 47 E-mail copyrightiso.org Web www.iso.org Published in Switzerland ii ISO/IEC 2
8、012 All rights reservedBS ISO/IEC 19500-1:2012ISO/IEC 19500-1:2012(E) ISO/IEC 2012 - All rights reserved iii Table of Contents Foreword .xvii Introduction xix 1 Scope . 1 2 Conformance and Compliance 1 3 Normative References . 1 4 Additional Information 2 4.1 Outline of Contents. 2 4.2 Keywords for
9、Requirement Statements 3 5 The Object Model . 5 5.1 General. 5 5.2 Overview. 5 5.3 Object Semantics . 6 5.3.1 Objects 6 5.3.2 Requests .6 5.3.3 Object Creation and Destruction .7 5.3.4 Types 7 5.3.5 Interfaces 8 5.3.6 Value Types 9 5.3.7 Abstract Interfaces 9 5.3.8 Operations 9 5.3.9 Attributes .11
10、5.4 Object Implementation 11 5.4.1 The Execution Model: Performing Services 11 5.4.2 The Construction Model 12 6 CORBA Overview 13 6.1 General. 13 BS ISO/IEC 19500-1:2012BS ISO/IEC 19500-1:2012 ISO/IEC 19500-1:2012(E) iv ISO/IEC 2012 - All rights reserved 6.2 Structure of an Object Request Broker. 1
11、3 6.2.1 Object Request Broker 17 6.2.2 Clients .18 6.2.3 Object Implementations 18 6.2.4 Object References 18 6.2.5 OMG Interface Definition Language .19 6.2.6 Mapping of IDL to Programming Languages 19 6.2.7 Client Stubs .19 6.2.8 Dynamic Invocation Interface 19 6.2.9 Implementation Skeleton 20 6.2
12、.10 Dynamic Skeleton Interface .20 6.2.11 Object Adapters .20 6.2.12 ORB Interface 20 6.2.13 Interface Repository .21 6.2.14 Implementation Repository 21 6.3 Example ORBs . 21 6.3.1 Client- and Implementation-resident ORB 21 6.3.2 Server-based ORB 21 6.3.3 System-based ORB 22 6.3.4 Library-based ORB
13、 .22 6.4 Structure of a Client 22 6.5 Structure of an Object Implementation . 23 6.6 Structure of an Object Adapter . 25 6.7 CORBA Required Object Adapter 26 6.7.1 Portable Object Adapter 26 6.8 The Integration of Foreign Object Systems 26 7 IDL Syntax and Semantics . 29 7.1 Overview. 29 7.2 Lexical
14、 Conventions 30 7.2.1 Tokens 33 7.2.2 Comments .33 7.2.3 Identifiers 33 7.2.4 Keywords 35 7.2.5 Literals 36 7.3 Preprocessing. 38 7.4 IDL Grammar 38 BS ISO/IEC 19500-1:2012BS ISO/IEC 19500-1:2012ISO/IEC 19500-1:2012(E) ISO/IEC 2012 - All rights reserved v 7.5 IDL Specification. 45 7.6 Import Declara
15、tion 45 7.7 Module Declaration. 46 7.8 Interface Declaration 47 7.8.1 Interface Header .47 7.8.2 Interface Inheritance Specification 47 7.8.3 Interface Body .48 7.8.4 Forward Declaration 48 7.8.5 Interface Inheritance .49 7.8.6 Abstract Interface 51 7.8.7 Local Interface 51 7.9 Value Declaration 52
16、7.9.1 Regular Value Type 52 7.9.2 Boxed Value Type .54 7.9.3 Abstract Value Type 55 7.9.4 Value Forward Declaration .55 7.9.5 Valuetype Inheritance .55 7.10 Constant Declaration 57 7.10.1 Syntax 57 7.10.2 Semantics 58 7.11 Type Declaration 61 7.11.1 Basic Types .62 7.11.2 Constructed Types 64 7.11.3
17、 Template Types .68 7.11.4 Complex Declarator .69 7.11.5 Native Types 69 7.11.6 Deprecated Anonymous Types .70 7.12 Exception Declaration. 73 7.13 Operation Declaration. 73 7.13.1 Operation Attribute 74 7.13.2 Parameter Declarations .74 7.13.3 Raises Expressions .74 7.13.4 Context Expressions 75 7.1
18、4 Attribute Declaration . 76 7.15 Repository Identity Related Declarations . 77 7.15.1 Repository Identity Declaration 77 7.15.2 Repository Identifier Prefix Declaration .78 7.15.3 Repository Id Conflict 79 BS ISO/IEC 19500-1:2012BS ISO/IEC 19500-1:2012 ISO/IEC 19500-1:2012(E) vi ISO/IEC 2012 - All
19、rights reserved 7.16 Event Declaration . 79 7.16.1 Regular Event Type .79 7.16.2 Abstract Event Type 80 7.16.3 Event Forward Declaration 80 7.16.4 Eventtype Inheritance 80 7.17 Component Declaration 80 7.17.1 Component 80 7.17.2 Component Header .81 7.17.3 Component Body .82 7.17.4 Event Sourcespubl
20、ishers and emitters .84 7.17.5 Event Sinks 84 7.17.6 Basic and Extended Components .85 7.18 Home Declaration. 85 7.18.1 Home .85 7.18.2 Home Header 86 7.18.3 Home Body 87 7.19 CORBA Module 88 7.20 Names and Scoping . 89 7.20.1 Qualified Names 89 7.20.2 Scoping Rules and Name Resolution 90 7.20.3 Spe
21、cial Scoping Rules for Type Names 93 8 ORB Interface 95 8.1 Overview. 95 8.2 The ORB Operations 95 8.2.1 ORB Identity 101 8.2.2 Converting Object References to Strings 101 8.2.3 Getting Service Information 102 8.2.4 Creating a New Context 102 8.2.5 Thread-Related Operations 102 8.3 Object Reference
22、Operations . 105 8.3.1 Determining the Object Interface 107 8.3.2 Duplicating and Releasing Copies of Object References .107 8.3.3 Nil Object References .107 8.3.4 Equivalence Checking Operation 108 8.3.5 Probing for Object Non-Existence .108 8.3.6 Object Reference Identity .108 8.3.7 Type Coercion
23、Considerations 110 8.3.8 Getting Policy Associated with the Object 110 BS ISO/IEC 19500-1:2012BS ISO/IEC 19500-1:2012ISO/IEC 19500-1:2012(E) ISO/IEC 2012 - All rights reserved vii 8.3.9 Overriding Associated Policies on an Object Reference 111 8.3.10 Validating Connection 112 8.3.11 Getting the Doma
24、in Managers Associated with the Object .112 8.3.12 Getting Component Associated with the Object 113 8.3.13 Getting the ORB 113 8.3.14 LocalObject Operations .113 8.4 ValueBase Operations 114 8.5 ORB and OA Initialization and Initial References . 115 8.5.1 ORB Initialization 115 8.5.2 Obtaining Initi
25、al Object References 117 8.5.3 Configuring Initial Service References 120 8.6 Context Object 122 8.6.1 Introduction .122 8.6.2 Context Object Operations 122 8.7 Current Object . 125 8.8 Policy Object. 126 8.8.1 Definition of Policy Object .126 8.8.2 Creation of Policy Objects .127 8.8.3 Usages of Po
26、licy Objects 129 8.8.4 Policy Associated with the Execution Environment 129 8.8.5 Specification of New Policy Objects 130 8.8.6 Standard Policies 131 8.9 Management of Policies . 131 8.9.1 Client Side Policy Management 131 8.9.2 Server Side Policy Management .132 8.9.3 Policy Management Interfaces 1
27、32 8.10 Management of Policy Domains. 134 8.10.1 Basic Concepts 134 8.10.2 Domain Management Operations 136 8.11 TypeCodes . 138 8.11.1 The TypeCode Interface 138 8.11.2 TypeCode Constants .142 8.11.3 Creating TypeCodes 143 8.12 Exceptions 148 8.12.1 Definition of Terms 148 8.12.2 System Exceptions
28、148 8.12.3 Standard System Exception Definitions 150 8.12.4 Standard Minor Exception Codes 156 BS ISO/IEC 19500-1:2012BS ISO/IEC 19500-1:2012 ISO/IEC 19500-1:2012(E) viii ISO/IEC 2012 - All rights reserved 9 Value Type Semantics . 157 9.1 Overview. 157 9.2 Architecture. 157 9.2.1 Abstract Values .15
29、8 9.2.2 Operations 158 9.2.3 Value Type vs. Interfaces .159 9.2.4 Parameter Passing .159 9.2.5 Substitutability Issues .160 9.2.6 Widening/Narrowing 161 9.2.7 Value Base Type .161 9.2.8 Life Cycle issues .161 9.2.9 Security Considerations 162 9.3 Standard Value Box Definitions 162 9.4 Language Mappi
30、ngs . 163 9.4.1 General Requirements 163 9.4.2 Language Specific Marshaling 163 9.4.3 Language Specific Value Factory Requirements 163 9.4.4 Value Method Implementation 164 9.5 Custom Marshaling. 164 9.5.1 Implementation of Custom Marshaling .164 9.5.2 Marshaling Streams 165 9.6 Access to the Sendin
31、g Context Run Time 171 10 Abstract Interface Semantics . 173 10.1 Overview. 173 10.2 Semantics of Abstract Interfaces 173 10.3 Usage Guidelines . 174 10.4 Example 174 10.5 Security Considerations 175 10.5.1 Passing Values to Trusted Domains 175 11 Dynamic Invocation Interface . 177 11.1 Overview. 17
32、7 11.1.1 Common Data Structures 177 11.1.2 Memory Usage 179 11.1.3 Return Status and Exceptions .179 BS ISO/IEC 19500-1:2012BS ISO/IEC 19500-1:2012ISO/IEC 19500-1:2012(E) ISO/IEC 2012 - All rights reserved ix 11.2 Request Operations 179 11.2.1 create_request .180 11.2.2 add_arg .182 11.2.3 invoke 18
33、2 11.2.4 delete .183 11.2.5 send .183 11.2.6 poll_response 183 11.2.7 get_response .183 11.2.8 sendp .184 11.2.9 prepare 184 11.2.10 sendc .184 11.3 ORB Operations . 185 11.3.1 send_multiple_requests .185 11.3.2 get_next_response and poll_next_response .185 11.4 Polling. 186 11.4.1 Abstract Valuetyp
34、e Pollable .187 11.4.2 Abstract Valuetype DIIPollable 188 11.4.3 interface PollableSet 188 11.5 List Operations . 189 11.5.1 create_list 190 11.5.2 add_item 190 11.5.3 free 191 11.5.4 free_memory .191 11.5.5 get_count .191 11.5.6 create_operation_list .191 12 Dynamic Skeleton Interface . 193 12.1 In
35、troduction. 193 12.2 Overview. 193 12.3 ServerRequestPseudo-Object 194 12.3.1 ExplicitRequest State: ServerRequestPseudo-Object .194 12.4 DSI: Language Mapping. 195 12.4.1 ServerRequests Handling of Operation Parameters 195 12.4.2 Registering Dynamic Implementation Routines .195 13 Dynamic Managemen
36、t of Any Values 197 13.1 General. 197 13.2 Overview. 197 BS ISO/IEC 19500-1:2012BS ISO/IEC 19500-1:2012 ISO/IEC 19500-1:2012(E) x ISO/IEC 2012 - All rights reserved 13.3 DynAny API 198 13.3.1 Creating a DynAny Object .204 13.3.2 The DynAny Interface 206 13.3.3 The DynFixed Interface .210 13.3.4 The
37、DynEnum Interface .210 13.3.5 The DynStruct Interface .211 13.3.6 The DynUnion Interface .212 13.3.7 The DynSequence Interface 214 13.3.8 The DynArray Interface 215 13.3.9 The DynValueCommon Interface 216 13.3.10 The DynValue Interface .216 13.3.11 The DynValueBox Interface .217 13.4 Usage in C+ Lan
38、guage. 218 13.4.1 Dynamic Creation of CORBA:Any values .218 13.4.2 Dynamic Interpretation of CORBA:Any values .219 14 The Interface Repository 221 14.1 Overview. 221 14.2 Scope of an Interface Repository . 221 14.3 Implementation Dependencies . 223 14.3.1 Managing Interface Repositories .223 14.4 Ba
39、sics . 224 14.4.1 Names and Identifiers 224 14.4.2 Types and TypeCodes .225 14.4.3 Interface Repository Objects .225 14.4.4 Structure and Navigation of the Interface Repository 226 14.5 Interface Repository Interfaces. 228 14.5.1 Supporting Type Definitions .229 14.5.2 IRObject .230 14.5.3 Contained
40、 231 14.5.4 Container .233 14.5.5 IDLType .238 14.5.6 Repository 238 14.5.7 ModuleDef .240 14.5.8 ConstantDef .240 14.5.9 TypedefDef 241 14.5.10 StructDef 241 14.5.11 UnionDef 242 14.5.12 EnumDef 243 14.5.13 AliasDef .243 BS ISO/IEC 19500-1:2012BS ISO/IEC 19500-1:2012ISO/IEC 19500-1:2012(E) ISO/IEC
41、2012 - All rights reserved xi 14.5.14 PrimitiveDef .244 14.5.15 StringDef 244 14.5.16 WstringDef .244 14.5.17 FixedDef 245 14.5.18 SequenceDef .245 14.5.19 ArrayDef 245 14.5.20 ExceptionDef .246 14.5.21 AttributeDef 247 14.5.22 ExtAttributeDef 247 14.5.23 OperationDef .248 14.5.24 InterfaceDef .250
42、14.5.25 ExtInterfaceDef 252 14.5.26 AbstractInterfaceDef 253 14.5.27 ExtAbstractInterfaceDef .254 14.5.28 LocalInterfaceDef 255 14.5.29 ExtLocalInterfaceDef .256 14.5.30 ValueMemberDef .256 14.5.31 ValueDef 257 14.5.32 ExtValueDef .260 14.5.33 ValueBoxDef 262 14.5.34 NativeDef .262 14.6 Component In
43、terface Repository Interfaces . 262 14.6.1 ComponentIR:Container .262 14.6.2 ComponentIR:Repository .264 14.6.3 ComponentIR:ProvidesDef .265 14.6.4 ComponentIR:UsesDef .265 14.6.5 ComponentIR:EventDef 266 14.6.6 ComponentIR:EventPortDef .266 14.6.7 ComponentIR:EmitsDef 267 14.6.8 ComponentIR:Publish
44、esDef .268 14.6.9 ComponentIR:ConsumesDef 268 14.6.10 ComponentIR:ComponentDef 268 14.6.11 ComponentIR:FactoryDef .271 14.6.12 ComponentIR:FinderDef .272 14.6.13 ComponentIR:HomeDef .272 14.7 RepositoryIds 274 14.7.1 IDL Format .275 14.7.2 RMI Hashed Format 275 14.7.3 DCE UUID Format .277 14.7.4 LOC
45、AL Format 277 14.7.5 Pragma Directives for RepositoryId .277 14.7.6 For More Information .282 BS ISO/IEC 19500-1:2012BS ISO/IEC 19500-1:2012 ISO/IEC 19500-1:2012(E) xii ISO/IEC 2012 - All rights reserved 14.7.7 RepositoryIDs for OMG-Specified Types .282 14.7.8 Uniqueness Constraints on Repository ID
46、s .283 14.8 IDL for Interface Repository 284 15 The Portable Object Adapter 303 15.1 Overview. 303 15.2 Abstract Model Description. 303 15.2.1 Model Components 303 15.2.2 Model Architecture .305 15.2.3 POA Creation .306 15.2.4 Reference Creation 307 15.2.5 Object Activation States .308 15.2.6 Reques
47、t Processing .308 15.2.7 Implicit Activation .309 15.2.8 Multi-threading .310 15.2.9 Dynamic Skeleton Interface .311 15.2.10 Location Transparency 312 15.3 Interfaces 312 15.3.1 The Servant IDL Type 313 15.3.2 POAManager Interface 314 15.3.3 POAManagerFactory Interface 318 15.3.4 AdapterActivator In
48、terface .319 15.3.5 ServantManager Interface .320 15.3.6 ServantActivator Interface .321 15.3.7 ServantLocator Interface .323 15.3.8 POA Policy Objects .325 15.3.9 POA Interface 328 15.3.10 Current Operations 337 15.4 IDL for PortableServer Module . 338 15.5 UML Description of PortableServer 344 15.
49、6 Usage Scenarios 346 15.6.1 Getting the Root POA 346 15.6.2 Creating a POA 347 15.6.3 Explicit Activation with POA-assigned Object Ids 347 15.6.4 Explicit Activation with User-assigned Object Ids 348 15.6.5 Creating References before Activation 349 15.6.6 Servant Manager Definition and Creation 349 15.6.7 Object Activation on Demand 351 15.6.8 Persistent Objects with POA-assigned Ids 352 BS ISO/IEC 19500-1:2012BS ISO/IEC 19500-1:2012ISO/IEC 19500-1:2012(E) ISO/IEC 2012 - All rights reserved xiii 15.6.9 Multiple Obje
