| Methods' Details |
createBlankNode
- Description
- creates a fresh unique blank node.
- Returns
- a newly generated blank node which is unique in this repository
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importGraph
- Description
- imports a named graph into the repository.
Implementations must support RDF/XML format.
Support for other RDF formats is optional.
If the format is not supported by the implementation, an
::com::sun::star::datatransfer::UnsupportedFlavorException is raised.
If the format requires use of a BaseURI, but none is given, an
::com::sun::star::lang::IllegalArgumentException
is raised.
- Parameter Format
- the format of the input file
- Parameter InStream
- the input stream, containing an RDF file in the specified format
- Parameter GraphName
- the name of the graph that is imported
- Parameter BaseURI
- a base URI to resolve relative URI references
- Returns
- the imported graph
- Throws
- com::sun::star::lang::IllegalArgumentException
if the given stream or the GraphName is NULL,
or BaseURI is NULL and the format requires use of a base URI
- Throws
- com::sun::star::datatransfer::UnsupportedFlavorException
if the format requested is unknown or not supported
- Throws
- com::sun::star::container::ElementExistException
if a graph with the given GraphName already exists in the
repository
- Throws
- ParseException
if the input does not conform to the specified file format.
- Throws
- RepositoryException
if an error occurs when accessing the repository.
- Throws
- com::sun::star::io::IOException
if an I/O error occurs.
- See also
- FileFormat
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exportGraph
- Description
- exports a named graph from the repository.
Implementations must support RDF/XML format.
Support for other RDF formats is optional.
If the format is not supported by the implementation, an
::com::sun::star::datatransfer::UnsupportedFlavorException is raised.
- Parameter Format
- the format of the output file
- Parameter OutStream
- the target output stream
- Parameter GraphName
- the name of the graph that is to be exported
- Parameter BaseURI
- a base URI to resolve relative URI references
- Throws
- com::sun::star::lang::IllegalArgumentException
if the given stream or the GraphName is NULL,
or BaseURI is NULL and the format requires use of a base URI
- Throws
- com::sun::star::datatransfer::UnsupportedFlavorException
if the format requested is unknown or not supported
- Throws
- com::sun::star::container::NoSuchElementException
if a graph with the given GraphName does not exist
- Throws
- RepositoryException
if an error occurs when accessing the repository.
- Throws
- com::sun::star::io::IOException
if an I/O error occurs.
- See also
- FileFormat
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getGraphNames
- Description
- gets the names of all the graphs in the repository.
- Returns
- a list containing the names of the graphs in the repository
- Throws
- RepositoryException
if an error occurs when accessing the repository.
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getGraph
- Description
- gets a graph by its name.
- Parameter GraphName
- the name of the graph that is to be returned
- Returns
- the graph with the given name if it exists, else NULL
- Throws
- com::sun::star::lang::IllegalArgumentException
if the given GraphName is invalid
- Throws
- RepositoryException
if an error occurs when accessing the repository.
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createGraph
- Description
- creates a graph with the given name.
The name must be unique within the repository.
- Parameter GraphName
- the name of the graph that is to be created
- Returns
- the graph with the given name
- Throws
- com::sun::star::lang::IllegalArgumentException
if the given GraphName is invalid
- Throws
- com::sun::star::container::ElementExistException
if a graph with the given GraphName already exists
- Throws
- RepositoryException
if an error occurs when accessing the repository.
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destroyGraph
- Description
- destroys the graph with the given name, and removes it from the
repository.
This invalidates any instances of XNamedGraph
for the argument.
- Parameter GraphName
- the name of the graph that is to be destroyed
- Throws
- com::sun::star::lang::IllegalArgumentException
if the given GraphName is invalid
- Throws
- com::sun::star::container::NoSuchElementException
if a graph with the given GraphName does not exist
- Throws
- RepositoryException
if an error occurs when accessing the repository.
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getStatements
- Description
- gets matching RDF statements from the repository.
Any parameter may be NULL, which acts as a wildcard.
For example, to get all statements about myURI:
getStatements(myURI, null, null)
- Parameter Subject
- the subject of the RDF triple.
- Parameter Predicate
- the predicate of the RDF triple.
- Parameter Object
- the object of the RDF triple.
- Returns
- an iterator over all RDF statements in the repository that match
the parameters, represented as an
enumeration of Statement
- Throws
- RepositoryException
if an error occurs when accessing the repository.
- See also
- Statement, XNamedGraph::getStatements
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querySelect
- Description
- executes a SPARQL "SELECT" query.
This method runs a SPARQL query that returns a list of variable
bindings, i.e., a query beginning with "SELECT".
The result is basically a (rectangular) table with labeled columns,
where individual cells may be NULL.
- Parameter Query
- the SPARQL query
string
- Returns
- an enumeration, containing
- a list of query variable names (column labels)
- the query results (rows),
each being a list of bindings for the above variables
- Throws
- QueryException
if the query is malformed, or evaluation fails
- Throws
- RepositoryException
if an error occurs when accessing the repository.
- See also
- XQuerySelectResult
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queryConstruct
- Description
- executes a SPARQL "CONSTRUCT" query.
This method runs a SPARQL query that constructs a result graph,
i.e., a query beginning with "CONSTRUCT".
- Parameter Query
- the SPARQL query
string
- Returns
- an iterator over the query result graph, represented as an
enumeration of Statement
- Throws
- QueryException
if the query is malformed, or evaluation fails
- Throws
- RepositoryException
if an error occurs when accessing the repository.
- See also
- Statement
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queryAsk
- Description
- executes a SPARQL "ASK" query.
This method runs a SPARQL query that computes a boolean,
i.e., a query beginning with "ASK".
- Parameter Query
- the SPARQL query
string
- Returns
- the boolean query result
- Throws
- QueryException
if the query is malformed, or evaluation fails
- Throws
- RepositoryException
if an error occurs when accessing the repository.
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