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A bunch of classes that help developers building login and authentication.

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package br.com.jhonsapp.finaluser.persistence;

import java.util.List;

import javax.ejb.Local;

import br.com.jhonsapp.bootstrap.object.persistence.generic.GenericDAO;
import br.com.jhonsapp.finaluser.domain.User;

/**
 * EJB service that defines the User data access object. This service was
 * designed to be used in login implementations.
 * 
 * @see User
 * @see GenericDAO
 * 
 * @author Jhonathan Camacho
 */
@Local
public interface UserDAO extends GenericDAO {
	
	/**
	 * Find all persisted user.
	 * 
	 * @return a list with all user persisted in the database.
	 */
	public List findAll();

	/**
	 * Find all persisted users based on a id range.
	 * 
	 * @param first
	 *            the initial user id of the query range.
	 * @param last
	 *            the last user id of the query range.
	 * @return a list with the users that satisfy the range or a empty list
	 *         otherwise.
	 */
	public List findAllInARange(int first, int last);

	/**
	 * Search the total amount of users.
	 * 
	 * @return the total amount of users.
	 */
	public Long usersSize();
	
	/**
	 * Find a persisted user by his restToken.
	 * 
	 * @param accessToken
	 *            the user's accessToken
	 * @return the User that have the accessToken passed by parameter or null
	 *         otherwise.
	 */
	public T findByAccessToken(String accessToken);
		
}