Class DatasetRepository

All Implemented Interfaces:
DelegatingRepository, Repository

public class DatasetRepository extends RepositoryWrapper
A repository that automatically attempts to load the dataset supplied in a (SPARQL) query (using FROM and FROM NAMED clauses).
Arjohn Kampman, Jeen Broekstra
  • Constructor Details

    • DatasetRepository

      public DatasetRepository()
    • DatasetRepository

      public DatasetRepository(SailRepository delegate)
  • Method Details

    • setDelegate

      public void setDelegate(Repository delegate)
      Specified by:
      setDelegate in interface DelegatingRepository
      setDelegate in class RepositoryWrapper
    • getDelegate

      public SailRepository getDelegate()
      Specified by:
      getDelegate in interface DelegatingRepository
      getDelegate in class RepositoryWrapper
    • getConnection

      public RepositoryConnection getConnection() throws RepositoryException
      Description copied from interface: Repository
      Opens 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 RepositoryConnection is 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 own RepositoryConnections.

      Specified by:
      getConnection in interface Repository
      getConnection in class RepositoryWrapper
      A connection that allows operations on this repository.
      RepositoryException - If something went wrong during the creation of the Connection.
    • loadDataset

      public void loadDataset(URL url, IRI context, ParserConfig config) throws RepositoryException
      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.
      url - the location of the dataset
      context - the context in which to load the dataset
      config - parser configuration to use for processing the dataset
      RepositoryException - if an error occurred while loading the dataset.