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Re: Eclipse: the new Emacs? (and the XML story)


new emacs
Mark Schmeets wrote:

> I have not tried xmlbuddy, but all of the xml editors I have tried, 
> including oXygen ( and the Win32 ones XMLSpy, XMLNotepad, etc. ) exhibit 
> this behavior. Using RAM at 10 to 12 times the size of the document on 
> disk. I have always assumed it was because the were using DOM's 
> internally, and that the
> DOM implementations were memory hogs. Any one have any wisdom to share 
> here?

You're probably right.  Java objects have an awful lot of built-in memory 
overhead just for the java.lang.Object base class, and if you naively create 
a separate object for every element, attribute, attribute value, text chunk, 
and so on, you end up with a very large in-memory data structure.  Memory 
aside, Java object creation and deletion is also very slow (that's why it 
takes so long to load an XML document into a DOM).


All the best,


David

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