feature/CON-265

concourse-driver-java/src/main/java/com/cinchapi/concourse/Concourse.java

@@ -594,6 +594,16 @@ public final void close() {
      */
     public abstract boolean commit();
 
+    /**
+     * Revert a record key back x revisions.
+     * 
+     * @param changes Number of revisions to revert.
+     * @param key The target key.
+     * @param record The specified target record.
+     * @return {@code true} if undo invoked successfully.
+     */
+    public abstract void undo(long changes, String key, long record);
+
     /**
      * Return all of the keys in the database.
      * 

concourse-driver-java/src/main/java/com/cinchapi/concourse/ConcourseThriftDriver.java

@@ -573,6 +573,14 @@ public boolean commit() {
         });
     }
 
+    @Override
+    public void undo(long changes, String key, long record) {
+        execute(() -> {
+            core.undo(changes, key, record, creds, transaction, environment);
+            return null;
+        });
+    }
+
     @Override
     public Set<String> describe() {
         return execute(() -> {