Hi,

Keeping the order when serializing/de-serializing list of objects will depend on JAXB. To be frank I've never seen a case where the order was not kept but I don't have strong clue stating that JAXB will always respect the order.

So if you're idea is to use the item index in the list to keep in mind that the first contains for instance the introduction and the second a paragraph, it may be risky... A better way would be to annotate the item and to rely on this annotation to be sure that you're dealing with the item you think you have.

Last point, if you are talking about ordering in the RDF/XML part, then it's simpler : never assumer ordering to be kept !

Thanks for your replies!
I use a list of MediaUnits to represent text in an NLP application. Each MediaUnit contains a phrase, including further annotation. This phrase is then treated by an external service, and in the end the original text has to be reassembled. This won't be possible if the MediaUnits are returned in a different order.

Do you have any smart ideas on how to fixate the order (well, apart from adding an index to each MU) ?

Have a nice week-end,

Tonio