Invert the "structure" tag so that it contains the collection rather
than the collection containing it, like this:
<mapping name="table" class="Table">
<structure name="rows">
<collection field="row" item-type="Row"/>
</structure>
</mapping>
<mapping name="row" class="Row">
<value name="number" field="number"/>
<value name="value" field="value" />
</mapping>
The "rows" element contains a collection of "row" items, not the other
way around.
The way I think of the "structure" tag (to keep it straight in my head),
is when I want to "skip over" a level of nesting (of either XML elements
or classes contained within one another), I need a structure tag.
-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Mocky
Habeeb
Sent: Tuesday, March 01, 2005 3:48 PM
To: [email protected]
Subject: [jibx-users] Problem with a collection pushed one level deeper
First I'd like to say that I love this framework. I first learned of it
a few weeks ago when I watched the Javapolis video of the presentation
on XML binding. I immediately knew that this was just what I needed, and
I implemented it in the project I'm working on in a very short time.
It's very flexible and performance is great.
I read the archives looking for a solution to this problem but I haven't
seen one.
Here is my problem, I have XML that looks like this:
<table>
<row number="1" value="firstval"/>
<row number="2" value="second"/>
<row number="3" value="more"/>
</table>
And I created classes that look like this:
class Table {
private ArrayList rows;
}
class Row {
private String number;
private String value;
}
Then I created a binding that looked something like this:
<mapping name="table" class="Table">
<collection field="rows" item-type="Row"/>
</mapping>
<mapping name="row" class="Row">
<value name="number" field="number"/>
<value name="value" field="value" />
</mapping>
All was good until the XML was changed on me putting a new parent
element named 'rows' around the 'row's
<table>
<rows>
<row number="1" value="firstval"/>
<row number="2" value="second"/>
<row number="3" value="more"/>
</rows>
<metadata desc="a bunch other stuff that doesn't matter to this
problem"/>
</table>
Well I like my class structure and don't want to change it, so I changed
the binding in a number of different ways including this:
<mapping name="table" class="Table">
<collection field="rows" item-type="Row"/>
</mapping>
<mapping name="rows" class="Row">
<structure name="rows">
<value name="number" field="number"/>
<value name="value" field="value" />
</structure>
</mapping>
And I could tell you what error messages I'm getting, but basically I
don't know how to express what I want in the binding.xml, so I know that
it's not going to work.
Suggestions?
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