Jeremy Quinn wrote: >At 12:22 am +0100 23/2/02, Sylvain Wallez wrote: > >>Jeremy, I also quickly updated the FileWritingTransformer so that it >>uses any WriteableSource instead of just files. Could you please look at >>it ? Another update would be also to the 'serializer' parameter fully >>optional so that SAX events are sent directly to the result of >>WriteableSource.getContentHandler(). This would for avoid parsing the >>output of the serializer for native XML sources such as xmldb. >> >Hi Silvain, > This is spelled "S_y_lvain" :)
>I am just working on a new Transformer, WritableSourceTransformer, that >will replace FileWritingTransformer and should be able to write to any >writable source. > >What I do not understand right now is this: > >How do I tell if a particular WritableSource needs the services of a >Serializer or not? > >'file://' needs one, but XMLDB will not right? > You don't need to know it. A WritableSource must implement both getContentHandler() and getOutputStream(). If a serializer is not specified to the WriteableSourceTransformer, the SAX events are sent directly to the WriteableSource, and the implementation knows if it needs (as file:) or not (as xmldb:) to use an internal serializer. >At the moment, I am working on the assumption that is you have provided a >Serializer parameter, you want to use a Serializer. But I think this is not >the best way to do it! > This should be the way. But you will need to provide a serializer to the transformer only if the target storage format is not XML. In that case, this certainly makes the assumption that the target source is byte-based (like file) and not XML-based (like xmldb). Now what are the uses cases where we don't want to write XML ? There may be cases where data is sent to the user or read from the request in a non-xml format (such as structured text like discussed earlier about Chaperon), but won't it be stored as XML ? Sylvain -- Sylvain Wallez Anyware Technologies - http://www.anyware-tech.com --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, email: [EMAIL PROTECTED]
