object RDFGraphWriter
A class that provides methods to write an RDF graph to disk.
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def
convertToModel(graph: RDFGraph): Model
Converts an RDF graph to an Apache Jena in-memory model.
Converts an RDF graph to an Apache Jena in-memory model.
- graph
the RDF graph
- returns
the in-memory Apache Jena model containing the triples
- Note
For large graphs this can be too expensive and lead to a OOM exception
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def
writeDataframeToDisk(triples: DataFrame, path: String, singleFile: Boolean = false, sorted: Boolean = false): Unit
Write the triples represented by the DataFrame to disk in N-Triples format.
Write the triples represented by the DataFrame to disk in N-Triples format.
- triples
the DataFrame containing the triples
- path
the output directory
- singleFile
whether to put all data into a single file
- sorted
whether to sort the triples by subject, predicate, object
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def
writeToDisk(graph: RDFGraph, path: String, singleFile: Boolean = false, sorted: Boolean = false): Unit
Write the graph to disk in N-Triples format.
Write the graph to disk in N-Triples format.
- graph
the RDF graph
- path
the output directory
- singleFile
whether to put all data into a single file
- sorted
whether to sort the triples by subject, predicate, object
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def
writeTriplesToDisk(triples: RDD[Triple], path: String, singleFile: Boolean = false, sorted: Boolean = false): Unit
Write the triples to disk in N-Triples format.
Write the triples to disk in N-Triples format.
- triples
the triples
- path
the output directory
- singleFile
whether to put all data into a single file
- sorted
whether to sort the triples by subject, predicate, object
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(Since version ) see corresponding Javadoc for more information.