package jas2.jds.security;

/**
 * This is the abstract AccessManager class
 * Any concrete AccessManager must extend this class and provide
 * public static void main(String args[]) function that will be used to 
 * instansiate and configure the concrete class from the JAS configuration
 * file information
 */

public abstract class AccessManager
{
    protected AccessManager()
    {
	_theAccessManager = this;
    }

    static public AccessManager getInstance()
    {
	return _theAccessManager;
    }

    public abstract boolean checkAccess(String user, String host) throws PasswordRequiredException;
    public abstract boolean checkAccess(String user, String host, Object password) throws PasswordRequiredException;

    private static AccessManager _theAccessManager;
}