customerType.set("uri", "http://example.com/simple");
customerType.set("name", "Simple");
DataObject multiProperty = customerType.createDataObject("property");
multiProperty.set("name", "name");
multiProperty.set("type", stringType);
types.define(customerType);
DataObject obj = hc.getDataFactory().create("http://example.com/simple",
"Simple");
obj.set("name", "John Smith");
ByteArrayOutputStream baos = new ByteArrayOutputStream();