1 files changed, 41 insertions, 0 deletions
diff --git a/plugins/org.eclipse.emf.cdo/src/org/eclipse/emf/cdo/util/OptimisticLockingException.java b/plugins/org.eclipse.emf.cdo/src/org/eclipse/emf/cdo/util/OptimisticLockingException.java
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index 0000000000..fcf9d2c0a7
--- /dev/null
+++ b/plugins/org.eclipse.emf.cdo/src/org/eclipse/emf/cdo/util/OptimisticLockingException.java
@@ -0,0 +1,41 @@
+/*
+ * Copyright (c) 2004-2013 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:
+ *    Eike Stepper - initial API and implementation
+ */
+package org.eclipse.emf.cdo.util;
+
+import org.eclipse.emf.cdo.CDOObject;
+import org.eclipse.emf.cdo.transaction.CDOAutoLocker;
+
+/**
+ * A {@link ConcurrentAccessException concurrent access exception} that indicates that the repository can not acquire optimistic locks for some of the locally modified objects.
+ * <p>
+ * It's usually possible and adequate to attempt to commit the transaction again (optimistic strategy).
+ * Pessimistic {@link CDOObject#cdoWriteLock() locks} can help to avoid the problematic situation (see also {@link CDOAutoLocker}) at commit time.
+ * <p>
+ * The optimistic locking timeout can be configured on the server side:
+ *
+ * <pre>
+    &lt;property name="optimisticLockingTimeout" value="10000"/>
+ * </pre>
+ *
+ * @author Eike Stepper
+ * @since 4.2
+ * @noextend This interface is not intended to be extended by clients.
+ * @noinstantiate This class is not intended to be instantiated by clients.
+ */
+public class OptimisticLockingException extends ConcurrentAccessException
+{
+  private static final long serialVersionUID = 1L;
+
+  public OptimisticLockingException(String message)
+  {
+    super(message);
+  }
+}