| /* |
| * Copyright (c) 2009-2012, 2016, 2019 Eike Stepper (Loehne, 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: |
| * Eike Stepper - initial API and implementation |
| */ |
| package org.eclipse.emf.cdo.common.branch; |
| |
| import org.eclipse.emf.cdo.common.commit.CDOCommitInfo; |
| import org.eclipse.emf.cdo.common.util.CDOTimeProvider; |
| import org.eclipse.emf.cdo.spi.common.branch.CDOBranchUtil; |
| |
| /** |
| * A {@link #getTimeStamp() point in time} in a particular {@link #getBranch() branch}. |
| * |
| * @see CDOCommitInfo |
| * @see CDOBranchTag |
| * @see CDOBranch#getBase() |
| * @see CDOBranch#getHead() |
| * @see CDOBranch#getPoint(long) |
| * @see CDOBranchUtil#copyBranchPoint(CDOBranchPoint) |
| * @author Eike Stepper |
| * @since 3.0 |
| * @noextend This interface is not intended to be extended by clients. |
| * @noimplement This interface is not intended to be implemented by clients. |
| */ |
| public interface CDOBranchPoint extends CDOBranchProvider, CDOTimeProvider |
| { |
| /** |
| * The fixed special time stamp <i>unspecified</i>. |
| * |
| * @see CDOBranch#getHead() |
| */ |
| public static final long UNSPECIFIED_DATE = 0; |
| |
| /** |
| * The fixed special time stamp <i>invalid</i>. |
| * |
| * @since 4.0 |
| */ |
| public static final long INVALID_DATE = -1; |
| |
| /** |
| * Returns the branch of this branch point, or <code>null</code> if this branch point is the |
| * {@link CDOBranch#getBase() base} of the {@link CDOBranchManager#getMainBranch() main branch}. |
| */ |
| public CDOBranch getBranch(); |
| |
| /** |
| * Returns the time stamp of this branch point, or the fixed special time stamp <i> |
| * {@link CDOBranchPoint#UNSPECIFIED_DATE unspecified}</i> if this branch point marks the {@link CDOBranch#getHead() |
| * head} of a branch. |
| */ |
| public long getTimeStamp(); |
| } |