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Defines a Java client-side connection-oriented API for accessing sparql endpoints ala JDBC.
/*
* Copyright 2011 Revelytix Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package spark.api.rdf;
/**
* A Triple holds a subject-predicate-object triple as commonly retrieved from a CONSTRUCT query.
*/
public interface Triple {
/**
* Triple subject, which must be an RDF resource.
* @return RDF resource, either named or blank
*/
public Resource getSubject();
/**
* Triple predicate, which must be an RDF named node
* @return RDF predicate
*/
public NamedNode getPredicate();
/**
* Triple object, which must be an RDF node, either resource or literal
* @return RDF node
*/
public RDFNode getObject();
}