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https://issues.apache.org/jira/browse/JENA-1687?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16799003#comment-16799003
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Jan Martin Keil commented on JENA-1687:
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I'm building a processing pipeline. Input and output of the pipeline nodes are
RDF graphs. As I need to store the results of each pipeline node separately, it
is not an option to just add them into the input RDF graph. However, the next
pipeline node needs a union of all earlier RDF graphs to process. To achieve
that with Model, I would have needed to copy the whole RDF graphs each time.
This was not an option form the performance/memory/storage perspective and I
decided to work with Graph instead of Model. Due to your question, I just now
noticed, that OntModel provides the needed functionality. So it was my mistake.
Thank you for the critical question and sorry for the inconvenience.
> Precise return types of NodeFactory methods
> -------------------------------------------
>
> Key: JENA-1687
> URL: https://issues.apache.org/jira/browse/JENA-1687
> Project: Apache Jena
> Issue Type: Improvement
> Reporter: Jan Martin Keil
> Priority: Major
> Time Spent: 10m
> Remaining Estimate: 0h
>
> I propose to precise the return types of the NodeFactory methods, e.g. to set
> NodeFactory#createURI return type to Node_URI. This makes the developers life
> easier, as there is no longer a need to cast after creating a Node, if one
> need a specific node type. I can not see any disadvantages and it should be
> backward compatible (except of classes that override these methods).
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