/*
* #!
* 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.ctm;
import net.ontopia.infoset.core.LocatorIF;
import net.ontopia.topicmaps.core.TopicIF;
/**
* Common interface for generating both literal values and topics.
*/
public interface ValueGeneratorIF {
/**
* Returns true if this generator produces a topic.
*/
public boolean isTopic();
public String getLiteral();
public LocatorIF getDatatype();
/**
* Returns a locator if the literal is a locator. Otherwise it
* throws an exception.
*/
public LocatorIF getLocator();
public ValueGeneratorIF copy();
public TopicIF getTopic();
}