/* Copyright 2004, 2005, 2006 Acegi Technology Pty Limited
 *
 * 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.springframework.security.core.session;

/**
 * Implemented by {@link org.springframework.security.core.Authentication#getDetails()}
 * implementations that are capable of returning a session ID.
 * <p>
 * Used to extract the session ID from an <code>Authentication</code> object.
 *
 * @author Ben Alex
 * @deprecated Legacy of former concurrency control implementation. Will be removed in a future version.
 */
@Deprecated
public interface SessionIdentifierAware {
    //~ Methods ========================================================================================================

    /**
     * Obtains the session ID.
     *
     * @return the session ID, or <code>null</code> if not known.
     */
    String getSessionId();
}
