+ /**
+ * Query anchor names for the given module names in the provided dataspace.
+ *
+ *
+ * @param dataspaceName dataspace name
+ * @param moduleNames a collection of module names
+ * @return a collection of anchor names in the given dataspace. The schema set for each anchor must include all the
+ * given module names
+ */
+ Collection<Anchor> queryAnchors(String dataspaceName, Collection<String> moduleNames);
+
+ /**
+ * Get an anchor in the given dataspace using the anchor name.
+ *
+ * @param dataspaceName dataspace name
+ * @param anchorName anchor name
+ * @return an anchor
+ */
+ Anchor getAnchor(String dataspaceName, String anchorName);
+
+ /**
+ * Delete anchor by name in given dataspace.
+ *
+ * @param dataspaceName dataspace name
+ * @param anchorName anchor name
+ */
+ void deleteAnchor(String dataspaceName, String anchorName);