|
I sorted it out. Thanks everyone. Lo -----Original Message----- From: Raikov, Lo [mailto:Lo.Raikov@MISYS.COM] Sent: Tuesday, December 11, 2001 11:41 AM To: 'java400-l@midrange.com' Subject: RE: Dynamic program calls/run-time class names Thank you everyone who answered this question. It looks like it boils down to making use of the reflection package. I'm afraid I'm not very well versed in the way JVMs are usually implemented, so I can't help having a certain performance worry. Does Class fooClz = Class.forName("some.class.name"); MyClass myFoo = (MyClass) fooClz.newInstance(); involve creation of a new proxy instance only, or is "some.class.name" also instantiated? If it does, is it then shared between multiple threads in a JVM? I guess "some.class.name" is not instantiated, but I'd like to be absolutely sure - otherwise performance penalty of doing the above in multiple threads could be too high. Lo -----Original Message----- From: David Morris [mailto:David.Morris@plumcreek.com] Sent: Tuesday, December 11, 2001 2:53 AM To: java400-l@midrange.com; Lo.Raikov@MISYS.COM Subject: RE: Dynamic program calls/run-time class names Lo, Since this list recently took an open source turn, why don't you have a look at the beanutils, which are part of the Apache Jakarta project. I have used those classes quite a bit and they do make the reflection classes pretty easy to digest. The Commons web site is at: http://jakarta.apache.org/commons David Morris >>> Lo.Raikov@MISYS.COM 12/10/01 12:28AM >>> Thanks, I'll think about it. Although, to be quite frank, at first glance, it does not look particularly transparent. :-) Lo -----Original Message----- From: Gary L Peskin [mailto:garyp@firstech.com] Sent: Monday, December 10, 2001 5:49 PM To: java400-l@midrange.com Subject: RE: Dynamic program calls/run-time class names Have a look at the java reflection classes in java.lang.reflect, particularly Method and Class. Gary _______________________________________________ This is the Java Programming on and around the iSeries / AS400 (JAVA400-L) mailing list To post a message email: JAVA400-L@midrange.com To subscribe, unsubscribe, or change list options, visit: http://lists.midrange.com/cgi-bin/listinfo/java400-l or email: JAVA400-L-request@midrange.com Before posting, please take a moment to review the archives at http://archive.midrange.com/java400-l.
As an Amazon Associate we earn from qualifying purchases.
This mailing list archive is Copyright 1997-2024 by midrange.com and David Gibbs as a compilation work. Use of the archive is restricted to research of a business or technical nature. Any other uses are prohibited. Full details are available on our policy page. If you have questions about this, please contact [javascript protected email address].
Operating expenses for this site are earned using the Amazon Associate program and Google Adsense.