1 files changed, 71 insertions, 0 deletions
diff --git a/plugins/org.eclipse.emf.cdo.common/src/org/eclipse/emf/cdo/spi/common/revision/PointerCDORevision.java b/plugins/org.eclipse.emf.cdo.common/src/org/eclipse/emf/cdo/spi/common/revision/PointerCDORevision.java
new file mode 100644
index 0000000000..4d803fe87f
--- /dev/null
+++ b/plugins/org.eclipse.emf.cdo.common/src/org/eclipse/emf/cdo/spi/common/revision/PointerCDORevision.java
@@ -0,0 +1,71 @@
+package org.eclipse.emf.cdo.spi.common.revision;
+
+import org.eclipse.emf.cdo.common.branch.CDOBranch;
+import org.eclipse.emf.cdo.common.branch.CDOBranchVersion;
+import org.eclipse.emf.cdo.common.id.CDOID;
+
+import java.text.MessageFormat;
+
+/**
+ * A {@link SyntheticCDORevision synthetic} revision that represents the initial period of an object in a
+ * {@link CDOBranch branch} when the object is still associated with a revision from one of the baseline branches. It
+ * always has {@link #getVersion() version} {@link CDOBranchVersion#UNSPECIFIED_VERSION zero} and can only appear in
+ * branches below the {@link CDOBranch#isMainBranch() main} branch.
+ * 
+ * @author Eike Stepper
+ * @since 3.0
+ */
+public class PointerCDORevision extends SyntheticCDORevision
+{
+  private long revised = UNSPECIFIED_DATE;
+
+  private CDOBranchVersion target;
+
+  public PointerCDORevision(CDOID id, CDOBranch branch, long revised, CDOBranchVersion target)
+  {
+    super(id, branch);
+    this.revised = revised;
+    this.target = target;
+  }
+
+  @Override
+  public final int getVersion()
+  {
+    return UNSPECIFIED_VERSION;
+  }
+
+  @Override
+  public long getTimeStamp()
+  {
+    return getBranch().getBase().getTimeStamp();
+  }
+
+  @Override
+  public long getRevised()
+  {
+    return revised;
+  }
+
+  @Override
+  public void setRevised(long revised)
+  {
+    this.revised = revised;
+  }
+
+  public CDOBranchVersion getTarget()
+  {
+    return target;
+  }
+
+  @Override
+  public String toString()
+  {
+    if (target == null)
+    {
+      return MessageFormat.format("PointerCDORevision[{0}:{1}v0 --> null]", getID(), getBranch().getID());
+    }
+
+    return MessageFormat.format("PointerCDORevision[{0}:{1}v0 --> {2}v{3}]", getID(), getBranch().getID(), target
+        .getBranch().getID(), target.getVersion());
+  }
+}