/*
 * Copyright 1999,2004 The Apache Software Foundation.
 * 
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * 
 *      http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */


package org.apache.catalina;


/**
 * An <b>Authenticator</b> is a component (usually a Valve or Container) that
 * provides some sort of authentication service.  The interface itself has no
 * functional significance,  but is used as a tagging mechanism so that other
 * components can detect the presence (via an "instanceof Authenticator" test)
 * of an already configured authentication service.
 *
 * @author Craig R. McClanahan
 * @version $Revision$ $Date$
 */

public interface Authenticator {


}