package com.sjtu.dao;

import com.sjtu.model.Role;

import java.util.List;

/**
 * Role Data Access Object (DAO) interface.
 * 
 * <p>
 * <a href="RoleDao.java.html"><i>View Source</i></a>
 * </p>
 * 
 * @author <a href="mailto:matt@raibledesigns.com">Matt Raible</a>
 */
public interface RoleDao extends Dao {
	/**
	 * Gets role information based on rolename
	 * 
	 * @param rolename
	 *            the rolename
	 * @return role populated role object
	 */
	public Role getRoleByName(String rolename);

	/**
	 * Gets a list of roles based on parameters passed in.
	 * 
	 * @return List populated list of roles
	 */
	public List getRoles(Role role);

	/**
	 * Saves a role's information
	 * 
	 * @param role
	 *            the object to be saved
	 */
	public void saveRole(Role role);

	/**
	 * Removes a role from the database by name
	 * 
	 * @param rolename
	 *            the role's rolename
	 */
	public void removeRole(String rolename);
}