XOM API for Processing XML with Java

[Johannes Döbler <jd AT aztecrider.com>]

Visitor is straightforward to implement (see below)
Then the first NodeVisitor example could be the Serializer (with the 
pleasant side-effect that the ugly method "public void write(TreeNode node) 
throws IOException"
would vanish).

Problem: which types of exception is a NodeVisitor allowed to throw?

Johannes

------------------

public interface NodeVisitor
{
        public void visitDocument(Document document);
        public void visitElement(Element element);
        public void visitText(Text text)
        ...
}

and Node gets a method

public abstract void accept(NodeVisitor visitor);

with implementations

Element.accept(NodeVisitor visitor)
{
        visitor.visitElement(this);
}

etc. (ok, you knew that already :-))


> At 10:33 AM +0200 9/19/02, Laurent Bihanic wrote:
>
>
> >  - Tree walking: XOM should provide classes to ease walking document 
> > trees (TreeWalker, Visitor...).
>
> Agreed. Right now I'm focusing on the core, and trying to make that solid. 
> Tree walking utility classes will probably come later (or a third party 
> could implement them separately).
> --
>
> +-----------------------+------------------------+-------------------+
> | Elliotte Rusty Harold | elharo AT metalab.unc.edu | Writer/Programmer |
> +-----------------------+------------------------+-------------------+
> |          XML in a  Nutshell, 2nd Edition (O'Reilly, 2002)          |
> |              http://www.cafeconleche.org/books/xian2/            |
> |  http://www.amazon.com/exec/obidos/ISBN%3D0596002920/cafeaulaitA/ |
> +----------------------------------+---------------------------------+
> |  Read Cafe au Lait for Java News: http://www.cafeaulait.org/    |
> |  Read Cafe con Leche for XML News: http://www.cafeconleche.org/  |
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