package org.onap.cps.spi;
import java.util.Collection;
+import java.util.List;
import java.util.Map;
import org.onap.cps.spi.model.DataNode;
* included in the output
* @return the data nodes found i.e. 0 or more data nodes
*/
- Collection<DataNode> queryDataNodes(String dataspaceName, String anchorName,
- String cpsPath, FetchDescendantsOption fetchDescendantsOption);
+ List<DataNode> queryDataNodes(String dataspaceName, String anchorName,
+ String cpsPath, FetchDescendantsOption fetchDescendantsOption);
+ /**
+ * Starts a session which allows use of locks and batch interaction with the persistence service.
+ *
+ * @return Session ID string
+ */
+ String startSession();
+
+ /**
+ * Close session.
+ *
+ * @param sessionId session ID
+ */
+ void closeSession(String sessionId);
}