Difference between revisions of "XDI4j Tutorial 2"

Revision as of 15:16, 18 March 2008

{{#eclipseproject:technology.higgins}}

Example

This example app shows how to output a graph in different serialization formats.

package org.eclipse.higgins.xdi4j.tutorial;

import org.eclipse.higgins.xdi4j.Graph;
import org.eclipse.higgins.xdi4j.GraphFactory;
import org.eclipse.higgins.xdi4j.impl.memory.MemoryGraphFactory;
import org.eclipse.higgins.xdi4j.io.XDIWriter;
import org.eclipse.higgins.xdi4j.io.XDIWriterRegistry;
import org.eclipse.higgins.xdi4j.xri3.impl.XRI3Segment;

/**
 * This example app shows how to output
 * an graph in different serialization formats.
 * 
 * @author msabadello at parityinc dot not
 *
 */
public class Tutorial2 {

	public static void main(String[] args) throws Exception {

		GraphFactory factory = MemoryGraphFactory.getInstance();
		Graph graph = factory.openGraph();

		// let's create a simple graph

		graph.createStatement(new XRI3Segment("=markus"), new XRI3Segment("+name"), "Markus");
		graph.createStatement(new XRI3Segment("=markus"), new XRI3Segment("+friend"), new XRI3Segment("=giovanni"));
		graph.createStatement(new XRI3Segment("=giovanni"), new XRI3Segment("+friend"), new XRI3Segment("=drummond"));

		// output the graph in X3 and XDI/XML

		XDIWriter writer;

		writer = XDIWriterRegistry.forFormat("X3");
		writer.write(graph, System.out, null);

		writer = XDIWriterRegistry.forFormat("XDI/XML");
		writer.write(graph, System.out, null);

		graph.close();
	}
}