[jdom-interest] jdom and dom4j
bob at werken.com
Mon Jun 17 07:36:53 PDT 2002
> The fact JDOM is going through the JCP process as an official JSR isn't
> mentioned either.
I thought we'd gone over this a few times, and decided that the JSR status
was basically meaningless?
Am I wrong, or is the fact JDOM is a JSR only means that JDOM will be using
the JCP for its own development, but implies nothing regarding the "Java
Standard". If/when JSR 102 reaches maturity, will org.jdom.* become
a part of the JDK or JAXPacks? (or, renamed to javax.xml.tree.*, or
> Looking just at the facts on the page, JDOM now has integrated XPath (as
> of the latest CVS code) and we've had integrated JAXP/TRaX support for
> quite a long time. Both of those bullet items should be updated.
> The "Massive documents" and "event-based processing" items probably
> refer to dom4j's feature to only build parts of the tree. Laurent wrote
> similar code for JDOM. Look at the "spanner" code in jdom-contrib. If
> it becomes popular and people like the API, we'll make it core.
I think, in both cases, he's comparing out-of-the-box with out-of-the-box,
ignoring contrib'd projects. I think. I could certainly be wrong.
> Hmm, dom4j says "built on Java interfaces". What that probably should
> say is it's built on its own interfaces. Both dom4j and JDOM support
> standard interfaces like java.util.List, Cloneable, and so on.
Interface-based as opposed to concrete-class based, is the point he's
trying to make, I think.
> Hmm, other interesting features that aren't mentioned are whether the
> API can *output* a document. DOM L2 doesn't even support that in a
> standard manner. I suspect there's a lot of features that could be
> added to a list like this. Perhaps we should write a comparison chart
> on the JDOM site.
There's been quite a few charts/tables comparing JDOM to DOM in many
regards. But typically, the folks constructing the charts/tables
ignore dom4j completely. dom4j hasn't gotten nearly the press
attention as JDOM.
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