CheckedFuture<Optional<NormalizedNode<?,?>>, ReadFailedException> read(YangInstanceIdentifier path);
/**
- * Checks if data is available in the logical data store located at provided path
+ * Checks if data is available in the logical data store located at provided path.
+ * <p>
+ *
+ * Note: a successful result from this method makes no guarantee that a subsequent call to {@link #read}
+ * will succeed. It is possible that the data resides in a data store on a remote node and, if that
+ * node goes down or a network failure occurs, a subsequent read would fail. Another scenario is if
+ * the data is deleted in between the calls to <code>exists</code> and <code>read</code>
*
* @param path
* Path which uniquely identifies subtree which client want to