symbolProperty.set("name", "symbol");
symbolProperty.set("type", stringType);
types.defineOpenContentProperty("http://www.example.com/open", symbolProperty);
// Define open content property - company
DataObject companyProperty = factory.create("commonj.sdo", "Property");
companyProperty.set("name", "company");
companyProperty.set("type", companyType);
companyProperty.set("containment", Boolean.TRUE);
types.defineOpenContentProperty("http://www.example.com/open", companyProperty);