code: private void addMissingSchemas(Set<String> missingSchemas) {
  		if (missingSchemas.isEmpty()) {
  			return;
  		}
  		for (String className: missingSchemas) {
  			Class<?> cls;
  			try {
  				cls = Class.forName(className);
  			} catch (ClassNotFoundException e) {
  				throw DBLogger.newFatal("Invalid field type in schema", e);
  			}
  			//TODO primary node is not always right here...
  			createSchema(cache.getSession().getPrimaryNode(), cls);
  		}
  	}
docs: This method add all schemata that were found missing when checking all known
  schemata.
  @param missingSchemas