Interface TripleHandler

    • Method Summary

      All Methods Instance Methods Abstract Methods 
      Modifier and Type Method Description
      void close()
      Will be called last and exactly once.
      void closeContext​(ExtractionContext context)
      Informs the handler that no more triples will come from a previously opened context.
      void endDocument​(org.eclipse.rdf4j.model.IRI documentIRI)
      Informs the handler that the end of the document has been reached.
      void openContext​(ExtractionContext context)
      Informs the handler that a new context has been established.
      void receiveNamespace​(String prefix, String uri, ExtractionContext context)
      Invoked with a currently open context, notifies the detection of a namespace.
      void receiveTriple​(org.eclipse.rdf4j.model.Resource s, org.eclipse.rdf4j.model.IRI p, org.eclipse.rdf4j.model.Value o, org.eclipse.rdf4j.model.IRI g, ExtractionContext context)
      Invoked with a currently open context, notifies the detection of a triple.
      void setContentLength​(long contentLength)
      Sets the length of the content to be processed.
      void startDocument​(org.eclipse.rdf4j.model.IRI documentIRI)  
    • Method Detail

      • receiveTriple

        void receiveTriple​(org.eclipse.rdf4j.model.Resource s,
                           org.eclipse.rdf4j.model.IRI p,
                           org.eclipse.rdf4j.model.Value o,
                           org.eclipse.rdf4j.model.IRI g,
                           ExtractionContext context)
                    throws TripleHandlerException
        Invoked with a currently open context, notifies the detection of a triple.
        Parameters:
        s - triple subject, cannot be null.
        p - triple predicate, cannot be null.
        o - triple object, cannot be null.
        g - triple graph, can be null.
        context - extraction context.
        Throws:
        TripleHandlerException - if there is an error receiving the triple.
      • receiveNamespace

        void receiveNamespace​(String prefix,
                              String uri,
                              ExtractionContext context)
                       throws TripleHandlerException
        Invoked with a currently open context, notifies the detection of a namespace.
        Parameters:
        prefix - namespace prefix.
        uri - namespace IRI.
        context - namespace context.
        Throws:
        TripleHandlerException - if there is an error receiving the namespace.
      • closeContext

        void closeContext​(ExtractionContext context)
                   throws TripleHandlerException
        Informs the handler that no more triples will come from a previously opened context. All contexts are guaranteed to be closed before the final close(). The document context for each document is guaranteed to be closed after all local contexts of that document.
        Parameters:
        context - the context to be closed.
        Throws:
        TripleHandlerException - if there is an error closing the ExtractionContext.
      • endDocument

        void endDocument​(org.eclipse.rdf4j.model.IRI documentIRI)
                  throws TripleHandlerException
        Informs the handler that the end of the document has been reached.
        Parameters:
        documentIRI - document IRI.
        Throws:
        TripleHandlerException - if there is an error ending the document.
      • setContentLength

        void setContentLength​(long contentLength)
        Sets the length of the content to be processed.
        Parameters:
        contentLength - length of the content being processed.