org.apache.any23.writer

Interface TripleWriter

All Superinterfaces:

AutoCloseable

public interface TripleWriter
extends AutoCloseable

Base interface for triple writers that don't need an extraction context to write triples

Author:

Hans Brende (hansbrende@apache.org)

Method Summary

Modifier and Type	Method and Description
void	close() Releases resources associated with this TripleWriter, and flushes (but by default does not close) any underlying OutputStreams.
void	writeNamespace(String prefix, String uri) Writes a prefix-namespace mapping.
void	writeTriple(org.eclipse.rdf4j.model.Resource s, org.eclipse.rdf4j.model.IRI p, org.eclipse.rdf4j.model.Value o, org.eclipse.rdf4j.model.Resource g) Writes a triple and, optionally, a graph resource name.

Method Detail

writeTriple

void writeTriple(org.eclipse.rdf4j.model.Resource s,
                 org.eclipse.rdf4j.model.IRI p,
                 org.eclipse.rdf4j.model.Value o,
                 org.eclipse.rdf4j.model.Resource g)
          throws TripleHandlerException

Writes a triple and, optionally, a graph resource name.

Parameters:

s - the subject to write

p - the predicate to write

o - the object to write

g - the graph name to write, or null

Throws:

TripleHandlerException - if there is an error writing the triple

writeNamespace

void writeNamespace(String prefix,
                    String uri)
             throws TripleHandlerException

Writes a prefix-namespace mapping.
NOTE: this method should be called before writing out any triples. Calling this method after writing out a triple may result in the prefix-namespace mapping being ignored.

Parameters:

prefix - the namespace prefix

uri - the namespace uri

Throws:

TripleHandlerException - if there was an error writing out the prefix-namespace mapping

close

void close()
    throws TripleHandlerException

Releases resources associated with this TripleWriter, and flushes (but by default does not close) any underlying OutputStreams. Future invocations of methods of this writer produce undefined behavior after this method has been called.

Specified by:

close in interface AutoCloseable

Throws:

TripleHandlerException - if there was an error closing this TripleWriter