public String findByUserAndKey(User user, String key) {
UserVariableKeyDAO variableKeyDAO = DAOFactory.getInstance().getUserVariableKeyDAO();
UserVariableKey userVariableKey = variableKeyDAO.findByVariableKey(key);
if (userVariableKey != null) {
UserVariable userVariable = findByUserAndVariableKey(user, userVariableKey);
return userVariable == null ? null : userVariable.getValue();
} else {
throw new PersistenceException("Unknown VariableKey");
}
}
private UserVariable create(User user, UserVariableKey key, String value) {
EntityManager entityManager = getEntityManager();
UserVariable userVariable = new UserVariable();
userVariable.setUser(user);
userVariable.setKey(key);
userVariable.setValue(value);
entityManager.persist(userVariable);
user.getVariables().add(userVariable);
entityManager.persist(user);
return userVariable;
}
private void updateValue(UserVariable userVariable, String value) {
EntityManager entityManager = getEntityManager();
userVariable.setValue(value);
entityManager.persist(userVariable);
}