Feltenberger, David wrote:
All,
I have an XML document that's subject to change fairly often, as it's going
to be used in a simple message router. The message format will look
something like what's included below. There's a repeating element called
MsgParts that has an attribute for identifying the type of message contained
inside, but I don't want to actually unmarshall the contents of the tag. I
want to save the XML inside each MsgParts tag as a String (the crux of the
problem). It's just going to get passed off to one or many destinations,
and outside of creating a CDATA and putting XML inside (which cries "Hack!"
to me), I can't figure out a way to do this with JiBX. And since it's
possible the MsgParts contents will change fairly often, I don't want to
re-compile/re-deploy the binding information each time we add a new type; I
have a database config of where/how types should get to their destination
but don't really care what's in the string I send. The ideal solution will
create a new MsgPart object (see below) and populate the fields in the class
appropriately. Any ideas? (Was that clear?)
Thanks.
Dave Feltenberger
In the JiBX example/extras there are two items. One is the
DiscardElementMapper.java, the other is the Dom4JMapper.java.
The simple method is to adapt DiscardElementMapper.java to read the
entire MsgPart tag into a string.
The difficult part will be trying to write the string back, as JiBX
will want to convert the angle brackets. For example, it will want to
marshal to :
<MsgParts type="test">
<test>
<davetest>asdfasdf</davetest>
</test>
</MsgParts>
There are three ways around this: Include it in a CDATA section, hack
the JiBX code, or unmarshall it into DOM structure.
The first you don't like, but it is the fastest. It may not be
unmarshallable by the end code either.
I've done the second in an earlier version of JiBX. Essentially you
need to expose (make public) the IXMLWriter so you can write around the
default methods of writing text. This was in an earlier version, and the
changes required have changed. And I've lost them in the upgrades.
The third you want to look at the Dom4JMapper.java and other related
classes. It won't be pretty, but if you are not changing or looking at
the data, it may work.
--
Thomas Jones-Low Softstart Services Inc.
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Ph: 802-398-1012 http://www.softstart.com
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