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/**
 * 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. See accompanying LICENSE file.
 */
package org.apache.hadoop.security.authentication.server;

import java.util.Collection;

/**
 * Interface to support multiple authentication mechanisms simultaneously.
 *
 */
public interface CompositeAuthenticationHandler extends AuthenticationHandler {
  /**
   * This method returns the token types supported by this authentication
   * handler.
   *
   * @return the token types supported by this authentication handler.
   */
  Collection getTokenTypes();
}