Class DatasetRepository
java.lang.Object
org.eclipse.rdf4j.repository.base.RepositoryWrapper
org.eclipse.rdf4j.repository.dataset.DatasetRepository
- All Implemented Interfaces:
DelegatingRepository,Repository
A repository that automatically attempts to load the dataset supplied in a (SPARQL) query (using FROM and FROM NAMED
clauses).
- Author:
- Arjohn Kampman, Jeen Broekstra
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Constructor Summary
Constructors -
Method Summary
Modifier and TypeMethodDescriptionOpens a connection to this repository that can be used for querying and updating the contents of the repository.voidloadDataset(URL url, IRI context, ParserConfig config) Inspects if the dataset at the supplied URL location has been modified since the last load into this repository and if so loads it into the supplied context.voidsetDelegate(Repository delegate) Methods inherited from class org.eclipse.rdf4j.repository.base.RepositoryWrapper
getDataDir, getValueFactory, init, isInitialized, isWritable, setDataDir, shutDown, toString
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Constructor Details
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DatasetRepository
public DatasetRepository() -
DatasetRepository
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Method Details
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setDelegate
- Specified by:
setDelegatein interfaceDelegatingRepository- Overrides:
setDelegatein classRepositoryWrapper
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getDelegate
- Specified by:
getDelegatein interfaceDelegatingRepository- Overrides:
getDelegatein classRepositoryWrapper
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getConnection
Description copied from interface:RepositoryOpens a connection to this repository that can be used for querying and updating the contents of the repository. Created connections need to be closed to make sure that any resources they keep hold of are released. The best way to do this is to use a try-with-resources block, as follows:try (RepositoryConnection conn = repository.getConnection()) { // perform operations on the connection }Note that
RepositoryConnectionis not guaranteed to be thread-safe! The recommended pattern for repository access in a multi-threaded application is to share the Repository object between threads, but have each thread create and use its ownRepositoryConnections.- Specified by:
getConnectionin interfaceRepository- Overrides:
getConnectionin classRepositoryWrapper- Returns:
- A connection that allows operations on this repository.
- Throws:
RepositoryException- If something went wrong during the creation of the Connection.
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loadDataset
Inspects if the dataset at the supplied URL location has been modified since the last load into this repository and if so loads it into the supplied context.- Parameters:
url- the location of the datasetcontext- the context in which to load the datasetconfig- parser configuration to use for processing the dataset- Throws:
RepositoryException- if an error occurred while loading the dataset.
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