Programacion

OpenEdge Development: Progress 4GL Handbook
® ®

John Sadd

Expert Series

©

2005 Progress Software Corporation. All rights reserved.

Progress® software products are copyrighted and all rights are reserved by Progress Software Corporation. This manual is also copyrighted and all rights are reserved. This manual may not, in whole or in part, be copied, photocopied, translated, orreduced to any electronic medium or machine-readable form without prior consent, in writing, from Progress Software Corporation. The information in this manual is subject to change without notice, and Progress Software Corporation assumes no responsibility for any errors that may appear in this document. The references in this manual to specific platforms supported are subject to change. A (anddesign), Allegrix, Allegrix (and design), Business Empowerment, DataDirect (and design) DataDirect Connect, DataDirect OLE DB, DirectALert, EdgeXtend, Empowerment Center, eXcelon, IntelliStream, O (and design), ObjectStore, OpenEdge, PeerDirect, P.I.P., POSSENET, Powered by Progress, Progress, Progress Dynamics, Progress Empowerment Center, Progress Empowerment Program, Progress Fast Track, ProgressOpenEdge, Partners in Progress, Partners en Progress, Persistence, Persistence (and design), ProCare, Progress en Partners, Progress in Progress, Progress Profiles, Progress Results, Progress Software Developers Network, ProtoSpeed, ProVision, SequeLink, SmartBeans, SpeedScript, Stylus Studio, Technical Empowerment, WebSpeed and Your Software, Our Technology–Experience the Connection areregistered trademarks of Progress Software Corporation or one of its subsidiaries or affiliates in the U.S. and/or other countries. AccelEvent, A Data Center of Your Very Own, AppsAlive, AppServer, ASPen, ASP-in-a-Box, BusinessEdge, Cache-Forward, DataDirect, DataDirect Connect64, DataDirect Technologies, Data Direct XQuery, DataXtend, Fathom, Future Proof, ObjectCache, ObjectStore Event Engine,ObjectStore Inspector, ObjectStore Performance Expert, ObjectStore Trading Accelerator, POSSE, ProDataSet, Progress Business Empowerment, Progress DataXtend, Progress for Partners, Progress ObjectStore, PSE Pro, PS Select, SectorAlliance, SmartBrowser, SmartComponent, SmartDataBrowser, SmartDataObjects, SmartDataView, SmartDialog, SmartFolder, SmartFrame, SmartObjects, SmartPanel, SmartQuery,SmartViewer, SmartWindow, WebClient, and Who Makes Progress are trademarks or service marks of Progress Software Corporation or one of its subsidiaries or affiliates in the U.S. and other countries. SonicMQ is a registered trademark of Sonic Software Corporation in the U.S. and other countries. Vermont Views is a registered trademark of Vermont Creative Software in the U.S. and other countries. IBM is aregistered trademark of IBM Corporation. JMX and JMX-based marks and Java and all Java-based marks are trademarks or registered trademarks of Sun Microsystems, Inc. in the U.S. and other countries. Any other trademarks or service marks contained herein are the property of their respective owners. OpenEdge includes Imaging Technology copyrighted by Snowbound Software 1993-2003. www.snowbound.com.OpenEdge includes software developed by the Apache Software Foundation (http://www.apache.org/). Copyright © 1999 The Apache Software Foundation. All rights reserved (Xerces C++ Parser (XML) and Xerces2 Java Parser (XML)); Copyright © 1999-2002 The Apache Software Foundation. All rights reserved (Xerces Parser (XML)); and Copyright © 2000-2003. The Apache Software Foundation. All rights reserved(Ant). The names “Apache,” “Xerces,” “ANT,” and “Apache Software Foundation” must not be used to endorse or promote products derived from this software without prior written permission. Products derived from this software may not be called “Apache”, nor may “Apache” appear in their name, without prior written permission of the Apache Software Foundation. For written permission, please contact...