Re: [Wyonacms-dev] SAX or DOM

tarGET-X.com wrote:

> Hello group, hello Micheal,
> 
> I found that in the cocoon.xmap:
> 
>   Transformers can be placed inside the pipeline between the generator
>   and the serializer. You may have as many transformers as you
>   like. Transformers consume SAX events and emmit SAX events.
> 
>   The "xslt" transformer is an example of a component with additional
>   configuration.
> 
> --> So Wyona is using the Simple Application Programming Interface (API) 
> for Xml (SAX). This is because coocon is using it. The biggest 
> difference between SAX and the DOM is that SAX is an event driven 
> interface.
> 
> Is that right?



Transformers don't have to be based on SAX. You can also base it on
DOM if you want. Please take a look at

src/java/org/wyona/cms/cocoon/transformation/IncludeTransformer.java

There are a lot of discussions what to use:
Advantage SAX: good performance, doesn't consume a lot of memory
Advantage DOM: Easy to manipulate nodes

The Cocoon guys seem to prefer SAX. I try to be pragmatic which
means I take whatever I think fits best for some problem.
You can refactor things any time:-)

All the best

Michael



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