| // |
| // ======================================================================== |
| // Copyright (c) 1995-2016 Mort Bay Consulting Pty. Ltd. |
| // ------------------------------------------------------------------------ |
| // All rights reserved. This program and the accompanying materials |
| // are made available under the terms of the Eclipse Public License v1.0 |
| // and Apache License v2.0 which accompanies this distribution. |
| // |
| // The Eclipse Public License is available at |
| // http://www.eclipse.org/legal/epl-v10.html |
| // |
| // The Apache License v2.0 is available at |
| // http://www.opensource.org/licenses/apache2.0.php |
| // |
| // You may elect to redistribute this code under either of these licenses. |
| // ======================================================================== |
| // |
| |
| package org.eclipse.jetty.client; |
| |
| /** |
| * <p>Implementations of this interface expose a lock object |
| * via {@link #getLock()} so that callers can synchronize |
| * externally on that lock:</p> |
| * <pre> |
| * if (iterator instanceof Synchronizable) |
| * { |
| * Object element = null; |
| * synchronized (((Synchronizable)iterator).getLock()) |
| * { |
| * if (iterator.hasNext()) |
| * element = iterator.next(); |
| * } |
| * } |
| * </pre> |
| * <p>In the example above, the calls to {@code hasNext()} and |
| * {@code next()} are performed "atomically".</p> |
| */ |
| public interface Synchronizable |
| { |
| /** |
| * @return the lock object to synchronize on |
| */ |
| public Object getLock(); |
| } |
