From: <dhe...@ya...> - 2001-03-31 01:48:28
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Hi ... Is this project active ? I would like to develop some other data structures (arrays, sorting, ... ) .. could I expect some help ? First I have a question : do you manage the size of the file when the its shrinking (I didn't find a setLength ... is it possible to ass it ?) Thanks Daniel. ----- Original Message ----- From: <jdb...@li...> To: <jdb...@li...> Sent: Friday, March 30, 2001 11:55 PM Subject: Jdbm-general digest, Vol 1 #23 - 1 msg > Send Jdbm-general mailing list submissions to > jdb...@li... > > To subscribe or unsubscribe via the World Wide Web, visit > http://lists.sourceforge.net/lists/listinfo/jdbm-general > or, via email, send a message with subject or body 'help' to > jdb...@li... > > You can reach the person managing the list at > jdb...@li... > > When replying, please edit your Subject line so it is more specific > than "Re: Contents of Jdbm-general digest..." > > > Today's Topics: > > 1. newbie question (Massimo Ferrari) > > --__--__-- > > Message: 1 > From: "Massimo Ferrari" <ma...@rc...> > To: <jdb...@li...> > Date: Fri, 30 Mar 2001 09:14:35 +0200 > Subject: [Jdbm-general] newbie question > > Deleting an hastable: > > ---------------------------------- > // open persistent hashtable > RecordManager recman = new RecordManager("tables"); > long root_recid = recman.getNamedObject("record1"); > if (root_recid == 0) { > // create a new one > root_recid = HTree.createRootDirectory(recman); > recman.setNamedObject("record1", root_recid); > recman.commit(); > } > JDBMHashtable hashtable = new HTree(recman, root_recid); > hashtable.put("name", "billy"); > hashtable.put("age", "98"); > hashtable.put("car", "porsche"); > > // do something .... > > // delete record > recman.delete(root_recid); > -------------------------------- > > does the last statement delete the whole hastable (also name, age, car)? > Thank you > Massimo > > > > > > --__--__-- > > _______________________________________________ > Jdbm-general mailing list > Jdb...@li... > http://lists.sourceforge.net/lists/listinfo/jdbm-general > > > End of Jdbm-general Digest > |