/* This file is part of the OWL API.
 * The contents of this file are subject to the LGPL License, Version 3.0.
 * Copyright 2014, The University of Manchester
 * 
 * This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.
 * This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
 * You should have received a copy of the GNU General Public License along with this program.  If not, see http://www.gnu.org/licenses/.
 *
 * Alternatively, the contents of this file may be used under the terms of the Apache License, Version 2.0 in which case, the provisions of the Apache License Version 2.0 are applicable instead of those above.
 * 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 org.semanticweb.owlapi.rdf.turtle.parser;

import javax.annotation.Nullable;

import org.semanticweb.owlapi.model.IRI;

/**
 * The Interface TripleHandler.
 *
 * @author Matthew Horridge, The University Of Manchester, Bio-Health Informatics Group
 * @since 2.2.0
 */
public interface TripleHandler {

    /**
     * Handle prefix directive.
     *
     * @param prefixName the prefix name
     * @param prefix     the prefix
     */
    void handlePrefixDirective(String prefixName, String prefix);

    /**
     * Handle base directive.
     *
     * @param base the base
     */
    void handleBaseDirective(IRI base);

    /**
     * Handle comment.
     *
     * @param comment the comment
     */
    void handleComment(String comment);

    /**
     * Handle triple.
     *
     * @param subject   the subject
     * @param predicate the predicate
     * @param object    the object
     */
    void handleTriple(IRI subject, IRI predicate, IRI object);

    /**
     * Handle triple.
     *
     * @param subject   the subject
     * @param predicate the predicate
     * @param object    the object
     */
    void handleTriple(IRI subject, IRI predicate, String object);

    /**
     * Handle triple.
     *
     * @param subject   the subject
     * @param predicate the predicate
     * @param object    the object
     * @param lang      the language tag
     */
    void handleTriple(IRI subject, IRI predicate, String object, @Nullable String lang);

    /**
     * Handle triple.
     *
     * @param subject   the subject
     * @param predicate the predicate
     * @param object    the object
     * @param datatype  the datatype
     */
    void handleTriple(IRI subject, IRI predicate, String object, @Nullable IRI datatype);

    /**
     * Handle end.
     */
    void handleEnd();
}
