package com.metaweb.gridworks.protograph;

import java.util.Properties;

import org.json.JSONException;
import org.json.JSONWriter;

public class CellKeyNode extends CellNode {
	private static final long serialVersionUID = 1684854896739592911L;
	
	final public FreebaseTopic	namespace;

	public CellKeyNode(
		String 			columnName,
		FreebaseTopic	namespace
	) {
		super(columnName);
		
		this.namespace = namespace;
	}
	
	public void write(JSONWriter writer, Properties options)
		throws JSONException {

		writer.object();
		writer.key("nodeType"); writer.value("cell-as-key");
		writer.key("columnName"); writer.value(columnName);
		writer.key("namespace"); namespace.write(writer, options);
		writer.endObject();
	}
}