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Oracle9ias Toplink Getting Started Guide b10061.book Page i Wednesday, September 4, 2002 1:20 PM Oracle9iAS TopLink Getting Started Release 2 (9.0.3) August 2002 Part No. B10061-01 b10061.book Page ii Wednesday, September 4, 2002 1:20 PM Oracle9iAS TopLink Getting Started, Release 2 (9.0.3) Part No. B10061-01 Copyright © 2002, Oracle Corporation. All rights reserved. The Programs (which include both the software and documentation) contain proprietary information of Oracle Corporation; they are provided under a license agreement containing restrictions on use and disclosure and are also protected by copyright, patent and other intellectual and industrial property laws. Reverse engineering, disassembly or decompilation of the Programs, except to the extent required to obtain interoperability with other independently created software or as specified by law, is prohibited. The information contained in this document is subject to change without notice. If you find any problems in the documentation, please report them to us in writing. Oracle Corporation does not warrant that this document is error-free. Except as may be expressly permitted in your license agreement for these Programs, no part of these Programs may be reproduced or transmitted in any form or by any means, electronic or mechanical, for any purpose, without the express written permission of Oracle Corporation. If the Programs are delivered to the U.S. Government or anyone licensing or using the programs on behalf of the U.S. Government, the following notice is applicable: Restricted Rights Notice Programs delivered subject to the DOD FAR Supplement are "commercial computer software" and use, duplication, and disclosure of the Programs, including documentation, shall be subject to the licensing restrictions set forth in the applicable Oracle license agreement. Otherwise, Programs delivered subject to the Federal Acquisition Regulations are "restricted computer software" and use, duplication, and disclosure of the Programs shall be subject to the restrictions in FAR 52.227-19, Commercial Computer Software - Restricted Rights (June, 1987). Oracle Corporation, 500 Oracle Parkway, Redwood City, CA 94065. The Programs are not intended for use in any nuclear, aviation, mass transit, medical, or other inherently dangerous applications. It shall be the licensee's responsibility to take all appropriate fail-safe, backup, redundancy, and other measures to ensure the safe use of such applications if the Programs are used for such purposes, and Oracle Corporation disclaims liability for any damages caused by such use of the Programs. Oracle is a registered trademark, and OracleMetaLink, Oracle Store, Oracle9i, Oracle9iAS Discoverer, SQL*Plus, and PL/SQL are trademarks or registered trademarks of Oracle Corporation. Other names may be trademarks of their respective owners. b10061.book Page iii Wednesday, September 4, 2002 1:20 PM Contents Send Us Your Comments .................................................................................................................... v Preface........................................................................................................................................................... vii Intended Audience ............................................................................................................................... vii Documentation Accessibility .............................................................................................................. viii Structure ................................................................................................................................................. viii Related Documents................................................................................................................................ ix Conventions............................................................................................................................................. x 1 TopLink Concepts Benefits of Using TopLink................................................................................................................ 1-1 TopLink Framework .................................................................................................................... 1-2 Relational Databases.......................................................................................................................... 1-2 Tables, Records, and Fields ......................................................................................................... 1-3 Keys (Primary and Foreign)........................................................................................................ 1-3 Sequence Numbers....................................................................................................................... 1-4 Java Object Model .............................................................................................................................. 1-5 Similarities Between Object and Relational Domains ............................................................. 1-5 Storing Objects in a Relational Database................................................................................... 1-5 TopLink Descriptors........................................................................................................................... 1-6 Mappings ....................................................................................................................................... 1-7 Relationship Mappings......................................................................................................... 1-7 Direct Mappings .................................................................................................................... 1-8 For More Information .................................................................................................................. 1-8 iii b10061.book Page iv Wednesday, September 4, 2002 1:20 PM Database Sessions............................................................................................................................... 1-8 Using TopLink in an Application .................................................................................................... 1-9 Transactions................................................................................................................................... 1-9 Unit of Work .................................................................................................................................. 1-9 Reading and Writing Java Objects ............................................................................................. 1-9 TopLink Mapping Workbench ....................................................................................................... 1-10 Design Strategies and Tips ............................................................................................................. 1-11 Database Considerations ........................................................................................................... 1-12 Do Not Design in Isolation........................................................................................................ 1-13 2 Installing and Testing TopLink System Requirements ........................................................................................................................ 2-1 Operating Systems Requirements .............................................................................................. 2-1 Hardware Requirements ............................................................................................................. 2-2 Software Requirements................................................................................................................ 2-2 Installing TopLink .............................................................................................................................. 2-3 Modifying the PATH and CLASSPATH Environment Variables......................................... 2-4 Windows Environment......................................................................................................... 2-4 Non-Windows Environment ............................................................................................... 2-5 Third-party License Information ..................................................................................................... 2-6 Configuring TopLink for Your Development Environment ...................................................... 2-8 Sun JDK and JRE........................................................................................................................... 2-8 IBM VisualAge for Java ............................................................................................................... 2-9 Importing TopLink Classes.................................................................................................. 2-9 Importing TopLink Source Files.......................................................................................... 2-9 Testing Your TopLink Installation................................................................................................. 2-10 General Troubleshooting................................................................................................................. 2-11 Glossary Index iv b10061.book Page v Wednesday, September 4, 2002 1:20 PM Send Us Your Comments Oracle9iAS TopLink Getting Started, Release 2 (9.0.3) Part No. B10061-01 Oracle Corporation welcomes your comments
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