OASIS Mailing List ArchivesView the OASIS mailing list archive below
or browse/search using MarkMail.


Help: OASIS Mailing Lists Help | MarkMail Help



   Re: [xml-dev] Eclipse: the new Emacs? (and the XML story)

[ Lists Home | Date Index | Thread Index ]

It may be problem you're running into with your 401K document is that 
Eclipse itself, not just the editors that run in it, is something of a 
memory hog. If you're running Eclipse in its default max memory, around 
100MB, any significant work you do will get Eclipse near the limit, 
putting you into a constant garbage-collection mode, which slows things 
down considerably.

I personally don't run Eclipse except with the following added to the 
command line:

  -vmargs -Xmx256m

I know this comes as a shock to people coming from emacs or otherwise 
unused to running in an all-Java environment not particularly tuned for 
low memory usage, but there it is. The question is, do you want to spend 
your time optimizing away the need for a <$100 memory chip?

Everyone's idea of 'ready for prime time' will vary, but I assure you 
that people edit 400K XML documents all the time with XMLBuddy without 
ill effects. (The memory usage for relatively small documents like this, 
BTW, depends as much on the complexity and nature of the DTD or schema 
behind the document.)

Bob Foster

David Megginson wrote:
> After flirting with it for a year or so, I've been giving Eclipse 
> another try for the past few days and have become convinced that it will 
> end up being the new Emacs: like Emacs, Eclipse is open source and 
> consists of a basic platform that provides a set of standard user 
> interfaces and services that are useful for many things other than 
> software development.  Eclipse already has a collection of third-party 
> plugins (both open source and commercial) to rival Emacs' collection of 
> modes, and I'm sure that if it doesn't do e-mail yet, it will soon.
> I'm not ready to switch over to Eclipse for everything, but I am trying 
> it with a couple of Java and C++ projects (its CVS integration is as 
> good as Emacs').  While doing so, it occurred to me that if I end up 
> doing a lot of development in Eclipse, I'll probably end up writing my 
> XML documents in Eclipse as well, the same way that I've been writing 
> SGML and XML documents in Emacs for the past 15 years.  So I downloaded 
> and installed two different XML editing plugins, both derived from 
> standalone editors:
> 1. oXygen (commercial with free trial)
> 2. XMLBuddy (free download for the basic version, closed source)
> Both provide some useful features, such as integration with the Eclipse 
> outline view, syntax highlighting, validation, automatic formatting, and 
> (in oXygen's case) built-in well-formedness checking.  Neither provides 
> an attributes dialog, as far as I could find (just autocompletion for 
> attribute names), and both lack basic features from Emacs/PSGML like 
> element splitting.
> Unfortunately, neither editor is anywhere near ready for prime time.  I 
> tried loading a 410K XML document into each of them (a bit over 100 
> pages printed), with the following results:
> 1. oXygen works at first, but eventually causes a memory-exhaustion 
> error after a bit of editing.
> 2. XMLBuddy becomes slower and slower, until it takes a few seconds for 
> each keystroke to register.
> So, really, these tools are suitable only for writing short XML 
> configuration files or faqs, not books or manuals.  I'm guessing that 
> the problem is an object explosion: the programs probably use Java 
> objects for everything, instead of optimizing internal storage with 
> arrays and building objects only on demand (it's the same kind of 
> problem that shows up with naively-written Java-based DOM libraries).
> There is a third Eclipse XML editor plugin, X-Men, that is Open Source.  
> I didn't install it yet because it has some prerequisites that I need to 
> figure out, but since it's Open Source, when the time does come to start 
> writing XML documents in Eclipse, I'll be able to go into the source 
> code and fix any bottlenecks myself.
> I'd love to hear other people's experiences with Eclipse and XML.
> All the best,
> David


News | XML in Industry | Calendar | XML Registry
Marketplace | Resources | MyXML.org | Sponsors | Privacy Statement

Copyright 2001 XML.org. This site is hosted by OASIS