Triple File Reader

This node reads triples stored in a file into a Data Table. It supports files such as *.ttl, *.rdf. *.rj, *.nt, *.trig, *.trix. Please check Jena Documentation for further information.

The N-Triples format for the query result is necessary to be kept if you want to insert the triples in an endstore. This is especially imporant for (typed) literals. If the N-Triples format is not preserved type information will get lost (a String representation of the literal is returned). For URIs the angled brackets are not preserved, which are necessary for insertion. Here is an example showing triples with and without format preservation:

Preservesub pred object
Yes<http://expl.org/expl><http://expl.org/integer>4
Nohttp://expl.org/explhttp://expl.org/integer4
Yes<http://expl.org/expl><http://expl.org/string>"4"
Nohttp://expl.org/explhttp://expl.org/string4
Yes<http://expl.org/expl><http://expl.org/string>"sometstring"@en
Nohttp://expl.org/explhttp://expl.org/stringsometstring
Yes<http://expl.org/expl><http://expl.org/own>"123k"^^<http://expl.org/owntype>
Nohttp://expl.org/explhttp://expl.org/own123k


Functionality is provided using the Apache Jena Framework

Options

Selected File
Enter a valid file name or URL. You can also choose a previously selected location from the drop-down list, or select a local file from the "Browse..." dialog.
Preserve N-Triples format
Whether the N-Triples format should be preserved.

Input Ports

This node has no input ports

Output Ports

Icon
Buffered Data Table containing triples

Views

This node has no views

Workflows

Further Links

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