/*
* #!
* 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.TMObjectIF;
import net.ontopia.utils.StringifierIF;
/**
* INTERNAL: Stringifier that returns the object id of a topic map object.
*/
public class ObjectIdStringifier implements StringifierIF<TMObjectIF> {
/**
* INTERNAL: Stringifies an arbitrary topicmap object, using its objectId
*
* @param tmobject TMObjectIF; the given topicmap object
* @return string the topic map object id
*/
public String toString(TMObjectIF tmobject) {
if (tmobject == null) return "null";
return tmobject.getObjectId();
}
}