An example of a multi-value node in JGraphX using "custom shape"

Example2.java

import java.awt.Color;
import java.awt.FontMetrics;
import java.awt.Graphics2D;
import java.awt.Rectangle;
import java.util.HashMap;
import java.util.Map;

import javax.swing.JFrame;

import com.mxgraph.canvas.mxGraphics2DCanvas;
import com.mxgraph.layout.mxGraphLayout;
import com.mxgraph.model.mxICell;
import com.mxgraph.shape.mxBasicShape;
import com.mxgraph.swing.mxGraphComponent;
import com.mxgraph.util.mxConstants;
import com.mxgraph.util.mxUtils;
import com.mxgraph.view.mxCellState;
import com.mxgraph.view.mxGraph;
import com.mxgraph.view.mxStylesheet;

public class Example2 extends JFrame {

	mxGraph graph=null;
	mxGraphLayout layout=null;

	
	public static void main(String[] args) {
			Example2 frame = new Example2();
			frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
			frame.setSize(400, 320);
			frame.setVisible(true);
	}
	
	public Example2() {

		graph = new mxGraph() {

			public boolean isCellFoldable(Object cell, boolean collapse)
			{
				return false;
			}
			
			public boolean isCellSelectable(Object cell) {
				return !model.isEdge(cell);
			}
		};

		Object parent = graph.getDefaultParent();

		graph.getModel().beginUpdate();
		
		try
		{
			mxStylesheet stylesheet = graph.getStylesheet();

			mxGraphics2DCanvas.putShape("mynode", new ExampleNode());
			Map<String, Object> style = new HashMap<String, Object>();
			style.put(mxConstants.STYLE_SHAPE, "mynode");
			stylesheet.putCellStyle("mynode", style);
			
			mxICell containerNode=(mxICell)graph.insertVertex(parent, null, "", 10, 10, 100, 100, "mynode");
			mxICell sampleNode=(mxICell)graph.insertVertex(parent, null, "Sample", 200, 10, 100, 100, "");
			graph.insertEdge(parent, null, null, containerNode, sampleNode);
			
		}
		
		finally
		{
			graph.getModel().endUpdate();
		}

		mxGraphComponent graphComponent = new mxGraphComponent(graph);
		getContentPane().add(graphComponent);
		
		graphComponent.doLayout();

	}

    static class ExampleNode  extends mxBasicShape {
    	
    	public void paintShape(mxGraphics2DCanvas canvas, mxCellState state) {

    		super.paintShape(canvas, state);
    		
    		Graphics2D g=canvas.getGraphics();

    		Rectangle rectContainer = new Rectangle((int)(state.getX()),(int)(state.getY()),100,100);
    		Rectangle rectTitle = new Rectangle((int)(state.getX()),(int)(state.getY()+10),100,65);
    		Rectangle rectLabel = new Rectangle((int)(state.getX()),(int)(state.getY()+75),50,25);
    		Rectangle rectValue = new Rectangle((int)(state.getX()+50),(int)(state.getY()+75),50,25);
    		
    		g.setColor(Color.decode((String)state.getStyle().get(mxConstants.STYLE_FILLCOLOR)));
    		
			g.fill(rectContainer);
    		g.setColor(Color.decode((String)state.getStyle().get(mxConstants.STYLE_FONTCOLOR)));
    		g.draw(rectContainer); 
			g.draw(rectTitle); 
			g.draw(rectLabel); 
			g.draw(rectValue); 

			g.setFont(mxUtils.getFont(state.getStyle()));
			
    		drawStringCentered(g, rectTitle, "Title");
    		drawStringCentered(g, rectLabel, "Label");
    		drawStringCentered(g, rectValue, "Value");
    	}

		private void drawStringCentered(Graphics2D g, Rectangle rect, String s) {
			FontMetrics metrics = g.getFontMetrics();
			int width=metrics.stringWidth(s);
			int height=metrics.getHeight();
			int ascent=metrics.getAscent();
			
    		g.drawString(s, (float)(rect.getCenterX()-(width/2.0)), (float)(rect.getCenterY()-height/2.0)+ascent);
		}
    }
	
}