br.com.caelum.vraptor.mydvds.dao

Interface UserDao

All Known Implementing Classes:

DefaultUserDao

public interface UserDao

Data Access Object of User entity.

Author:

Lucas Cavalcanti

Method Summary

Modifier and Type	Method and Description
void	add(User user) Adds the user on database
boolean	containsUserWithLogin(String login) Checks if there is already an user with given login.
User	find(String login) Finds an user by login
User	find(String login, String password) Finds an user by login and password.
List<User>	listAll() Retrieves all users from database.
void	refresh(User user) Synchronize the user data with the database.
void	update(User user) Update the user on database.

Method Detail

find

User find(String login,
          String password)

Finds an user by login and password.

Parameters:

login -

password -

Returns:

found user if it is unique

Throws:

HibernateException, - if there are more than one user

find

User find(String login)

Finds an user by login

Parameters:

login -

Returns:

found user if it is unique

Throws:

HibernateException, - if there are more than one user

add

void add(User user)

Adds the user on database

Parameters:

user -

refresh

void refresh(User user)

Synchronize the user data with the database. Any not saved modification on user will be overwritten.

Parameters:

user -

update

void update(User user)

Update the user on database.

Parameters:

user -

listAll

List<User> listAll()

Retrieves all users from database.

Returns:

containsUserWithLogin

boolean containsUserWithLogin(String login)

Checks if there is already an user with given login.

Parameters:

login -

Returns:

true if there exists a user