authenticator interface added

package org.aktin.dwh;

public interface Authenticator {

	/**

	 * Determine whether the given user and password combination is granted

	 * the given role.

	 * @param user user name

	 * @param password password

	 * @param role role

	 * @return true if all criteria are matched, false otherwise

	 */

	boolean verifyUserRole(String user, char[] password, String role);

	/**

	 * Determine whether a given user and password combination

	 * has admin privileges.

	 * 

	 * @param user user name

	 * @param password password

	 * @return true if the user is admin and the password is correct

	 */

	boolean verifyAdmin(String user, char[] password);

}