value.put(characteristic != null ? characteristic.id() : null);
Requirement requirement = m.getRequirement();
value.put(requirement != null ? requirement.id() : null);
Integer personId = m.getPersonId();
value.put(personId != null ? personId.intValue() : null);
PersistenceMode persistenceMode = m.getPersistenceMode();
value.putString(persistenceMode != null ? persistenceMode.name() : null);
}