+
+ /**
+ * Checks if data is available in the logical data store located at provided path
+ *
+ * @param path
+ * Path which uniquely identifies subtree which client want to
+ * check existence of
+ * @return a CheckFuture containing the result of the check.
+ * <ul>
+ * <li>If the data at the supplied path exists, the Future returns a Boolean
+ * whose value is true, false otherwise</li>
+ * <li>If checking for the data fails, the Future will fail with a
+ * {@link ReadFailedException} or an exception derived from ReadFailedException.</li>
+ * </ul>
+ */
+ CheckedFuture<Boolean, ReadFailedException> exists(YangInstanceIdentifier path);