Interface VirtualGraph


  • public interface VirtualGraph
    Information about a virtual graph.
    • Method Summary

      All Methods Static Methods Instance Methods Abstract Methods Deprecated Methods 
      Modifier and Type Method Description
      java.lang.String getDatabase()
      Returns the name the database that is associated with this virtual graph, or "*" if this virtual graph works with all databases.
      IRI getDataSourceName()
      Returns the name (as an IRI) of the data source that provides the connection to the backing database for this virtual graph.
      java.util.Set<Statement> getMappings()
      Returns the mappings defined for this graph expressed in R2RML.
      java.lang.String getName()
      Returns the (local) name of the virtual graph.
      java.util.Properties getOptions()
      Returns the configuration options associated with this virtual graph.
      static java.lang.String graphClause​(java.lang.String theGraph)
      Given the local name of a virtual graph, return a GRAPH clause for that virtual graph.
      boolean isAvailable()
      Is the virtual graph available?
      static java.lang.String service​(java.lang.String theGraph)
      static java.lang.String serviceClause​(java.lang.String theGraph)
      Given the local name of a virtual graph, return a SERVICE clause for that virtual graph.
      static IRI term​(java.lang.String theGraph)  
    • Method Detail

      • term

        static IRI term​(java.lang.String theGraph)
      • service

        static java.lang.String service​(java.lang.String theGraph)
        Given the local name of a virtual graph, return a GRAPH clause for that virtual graph.
        Parameters:
        theGraph - The local name of a virtual graph, without the virtual:// prefix
        Returns:
        A graph clause for use in a SPARQL query
      • graphClause

        static java.lang.String graphClause​(java.lang.String theGraph)
        Given the local name of a virtual graph, return a GRAPH clause for that virtual graph.
        Parameters:
        theGraph - The local name of a virtual graph, without the virtual:// prefix
        Returns:
        A graph clause for use in a SPARQL query
      • serviceClause

        static java.lang.String serviceClause​(java.lang.String theGraph)
        Given the local name of a virtual graph, return a SERVICE clause for that virtual graph.
        Parameters:
        theGraph - The local name of a virtual graph, without the virtual:// prefix
        Returns:
        A service clause for use in a SPARQL query
      • getName

        java.lang.String getName()
        Returns the (local) name of the virtual graph.
      • getDataSourceName

        IRI getDataSourceName()
        Returns the name (as an IRI) of the data source that provides the connection to the backing database for this virtual graph.
      • getDatabase

        java.lang.String getDatabase()
        Returns the name the database that is associated with this virtual graph, or "*" if this virtual graph works with all databases.
      • getMappings

        java.util.Set<Statement> getMappings()
        Returns the mappings defined for this graph expressed in R2RML. The iterable will be empty if there are no mappings.
      • getOptions

        java.util.Properties getOptions()
        Returns the configuration options associated with this virtual graph. The options are defined in VirtualGraphOptions.
      • isAvailable

        boolean isAvailable()
        Is the virtual graph available?