@NamedStoredProcedureQuery(name = "User.plus1IO", procedureName = "plus1inout", parameters = {
@StoredProcedureParameter(mode = ParameterMode.IN, name = "arg", type = Integer.class),
@StoredProcedureParameter(mode = ParameterMode.OUT, name = "res", type = Integer.class) })
@Table(name = "SD_User")
public class User { … }