Re: how many nodes that JTree support?

Article View: borland.public.jbuilder.java.swing

Article #1525

Back to borland.public.jbuilder.java.swing Previous Next

#1525

From: Tor Iver Wilhelmsen (TeamB)
Date: Sun, 26 Oct 2003 07:40

14 lines
1350 bytes

"Chris" <zerol@263.net> writes:

> I'm have a small problem with JTree.
> When load 5000 nodes into a JTree, it's
> works terribly slow.

You need to look into optimizations like

 - Not using DefaultMutableTreeNode but writing your own more
   optimized TreeNode implementation. For instance you could delay
   creating child nodes until they are needed.

 - Turning off stuff like double buffering and deregistering the JTree
   component with the ToolTipManager

Technical Details

Message-ID: <u7k2sqwfi.fsf@ergo.no>

Path:

arc1-ca.pugleaf.net!archiver1.google.com!news2.google.com!news.maxwell.syr.edu!newspeer1.nwr.nac.net!newsfeed.wirehub.nl!news.kweb.on.ca!newsgroups.borland.com!not-for-mail

References: <3f994daa@newsgroups.borland.com>

Show Full Headers

Complete Article Headers

X-Google-Language: ENGLISH,ASCII-7-bit
X-Google-Thread: 111d45,962f66eb2276150a
X-Google-Attributes: gid111d45,public
X-Google-ArrivalTime: 2003-10-26 00:41:15 PST
Sender: towi@SDSA3850
Newsgroups: borland.public.jbuilder.java.swing
Subject: Re: how many nodes that JTree support?
References: <3f994daa@newsgroups.borland.com>
From: tor.wilhelmsen@ergo.no (Tor Iver Wilhelmsen (TeamB))
Date: 26 Oct 2003 08:40:01 +0100
Message-ID: <u7k2sqwfi.fsf@ergo.no>
Lines: 14
User-Agent: Gnus/5.09 (Gnus v5.9.0) Emacs/21.1
MIME-Version: 1.0
Content-Type: text/plain; charset=us-ascii
NNTP-Posting-Host: 139.105.7.229
X-Trace: newsgroups.borland.com 1067154001 139.105.7.229 (26 Oct 2003 00:40:01 -0700)
Path: arc1-ca.pugleaf.net!archiver1.google.com!news2.google.com!news.maxwell.syr.edu!newspeer1.nwr.nac.net!newsfeed.wirehub.nl!news.kweb.on.ca!newsgroups.borland.com!not-for-mail

Reply to Parent Message