| /* |
| * Copyright (c) 2008-2012, 2014 Eike Stepper (Berlin, Germany) and others. |
| * All rights reserved. This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License v1.0 |
| * which accompanies this distribution, and is available at |
| * http://www.eclipse.org/legal/epl-v10.html |
| * |
| * Contributors: |
| * Simon McDuff - initial API and implementation |
| * Eike Stepper - maintenance |
| */ |
| package org.eclipse.emf.cdo; |
| |
| import org.eclipse.emf.cdo.view.CDOView; |
| |
| import org.eclipse.net4j.util.concurrent.IRWLockManager; |
| import org.eclipse.net4j.util.concurrent.IRWLockManager.LockType; |
| |
| import java.util.concurrent.TimeUnit; |
| import java.util.concurrent.TimeoutException; |
| import java.util.concurrent.locks.Lock; |
| |
| /** |
| * A read or write lock on an {@link CDOObject object} as returned by {@link CDOObject#cdoReadLock()} or |
| * {@link CDOObject#cdoWriteLock()}. |
| * |
| * @author Simon McDuff |
| * @since 2.0 |
| * @noextend This interface is not intended to be extended by clients. |
| * @noimplement This interface is not intended to be implemented by clients. |
| */ |
| public interface CDOLock extends Lock |
| { |
| public static final int WAIT = IRWLockManager.WAIT; |
| |
| public static final int NO_WAIT = IRWLockManager.NO_WAIT; |
| |
| /** |
| * @since 3.0 |
| */ |
| public LockType getType(); |
| |
| /** |
| * @since 4.0 |
| */ |
| public void lock(long time, TimeUnit unit) throws TimeoutException; |
| |
| /** |
| * @since 4.0 |
| */ |
| public void lock(long millis) throws TimeoutException; |
| |
| /** |
| * @since 4.0 |
| */ |
| public boolean tryLock(long millis) throws InterruptedException; |
| |
| /** |
| * Returns <code>true</code> if this lock is currently held by the requesting {@link CDOView view}, <code>false</code> |
| * otherwise. |
| */ |
| public boolean isLocked(); |
| |
| /** |
| * Returns <code>true</code> if this lock is currently held by another {@link CDOView view} (i.e. any view different |
| * from the requesting one), <code>false</code> otherwise. |
| */ |
| public boolean isLockedByOthers(); |
| } |