/*
* #!
* Ontopia Engine
* #-
* Copyright (C) 2001 - 2013 The Ontopia Project
* #-
* 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 net.ontopia.topicmaps.utils;
import net.ontopia.topicmaps.core.OccurrenceIF;
import net.ontopia.topicmaps.core.TMObjectIF;
import net.ontopia.topicmaps.core.TopicIF;
import net.ontopia.topicmaps.core.TopicNameIF;
import net.ontopia.topicmaps.core.VariantNameIF;
/**
* INTERNAL: Stringifier that returns the object id of the topic that
* belongs to this tmobject.
*/
public class ObjectTopicIdStringifier {
public static String toString(TMObjectIF tmobject) {
if (tmobject == null) return "null";
else if (tmobject instanceof TopicNameIF)
return ((TopicNameIF)tmobject).getTopic().getObjectId();
else if (tmobject instanceof VariantNameIF)
return ((VariantNameIF)tmobject).getTopic().getObjectId();
else if (tmobject instanceof OccurrenceIF)
return ((OccurrenceIF)tmobject).getTopic().getObjectId();
else if (tmobject instanceof TopicIF)
return ((TopicIF)tmobject).getObjectId();
else return "null";
}
public static TopicIF getTopic(TMObjectIF tmobject) {
if (tmobject == null) return null;
else if (tmobject instanceof TopicNameIF)
return ((TopicNameIF)tmobject).getTopic();
else if (tmobject instanceof VariantNameIF)
return ((VariantNameIF)tmobject).getTopic();
else if (tmobject instanceof OccurrenceIF)
return ((OccurrenceIF)tmobject).getTopic();
else if (tmobject instanceof TopicIF)
return ((TopicIF)tmobject);
else return null;
}
}