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From Reto Bachmann-Gmür (JIRA) <>
Subject [jira] Commented: (JENA-31) Add possibility to connect serializers to prefix service
Date Sat, 22 Jan 2011 12:33:43 GMT


Reto Bachmann-Gmür commented on JENA-31:

"The application can analysis the data, make choices of prefixes, set the prefix map appropriately
and call the writer. "

I see that this is a possible work-around, howverrequiring the application to iterate over
the data and determine the prefixed part for every uri seems highly inefficient.

"Pretty printing RDF/XML requires all the prefixes to be available at the start. *
Then the pretty-printer has to look at the data and find-out which prefixes are needed, as
uris in predicated position need a prefix this step is necessary even if all prefixes in the
map would be put in the prefix-mapping in the XML header.

For huge turtle seralization it might be ausefull setting, to limit the number of triples
that are evaluated as possible prefixes, once this number has been reach subsequent triples
never cause a yet unused prefix to be added.

> Add possibility to connect serializers to prefix service
> --------------------------------------------------------
>                 Key: JENA-31
>                 URL:
>             Project: Jena
>          Issue Type: Improvement
>          Components: Jena
>            Reporter: Reto Bachmann-Gmür
> Currently the serializers want to access the whole set of available prefimappings, instead
they shold only ask for a prefix suggestion for uris actually in the model, that way it is
possible to connect services which can suggest prefixes for a huge number of uris which is
not reasonably feasible now.

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