Re: objectsOfClass-Method vs. Class-Extents?
"Leo Mekenkamp" <[email protected]> Wed, 21 Dec 2005 17:26:54 +0100 (CET)
| Newsgroups | gmane.comp.java.ozone.user |
|---|---|
| Message-ID | <[email protected]> |
>> > Don't getting all objects of a type is no good, though:-( >> >> And what equivalent would you use to retrieve all instances of a class > in >> a standard jvm without a database? IMHO an ideal database is just a >> logical extention of the jvm; one should be able to use just pure java > to >> find objects. > > Thanks for your answer, Leo. > Since I'm no Java-expert (yet), please say if I write something stupid:= -) Oh believe me, I will! ;-) > I believe there is no native feature in Java to get all instances of a > type. But I could add all instances to a collection managed by my own. > Probably this collection could be a static attribute of the class, I ne= ed > an extent for. But this could be a problem, since static attributes wil= l > not be serialized which means they will not be persisted in Ozone, I > suppose. Yup. But you can always put (references to) objects into an (Ozone)collection, and make that collection a named object. ------------------------------------------------------- This SF.net email is sponsored by: Splunk Inc. Do you grep through log fi= les for problems? Stop! Download the new AJAX search engine that makes searching your log files as easy as surfing the web. DOWNLOAD SPLUNK! http://ads.osdn.com/?ad_id=3D7637&alloc_id=3D16865&op=3Dclick