/*
* Ivory: A Hadoop toolkit for web-scale information retrieval
*
* 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 ivory.smrf.model;
/**
* Abstract base class for a node in a MRF.
*
* @author Don Metzler
*/
public abstract class GraphNode {
public static enum Type { DOCUMENT, TERM };
@Override
public String toString() {
return "<node type=\"GraphNode\" />\n";
}
/**
* Returns the type of this node.
*
* @return type of this node
*/
public abstract Type getType();
}