From 6d5745f8b6f381762c40a0c9c6d4556eabd870ac Mon Sep 17 00:00:00 2001
From: Tetsuo Seto <tseto@us.ibm.com>
Date: Thu, 6 Apr 2017 11:44:49 -0700
Subject: [PATCH] Add generateUniqueId prototype

---
 lib/connector.js | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/lib/connector.js b/lib/connector.js
index 66177f9..00020cb 100644
--- a/lib/connector.js
+++ b/lib/connector.js
@@ -54,6 +54,20 @@ Connector.prototype.getDefaultIdType = function(prop) {
   return String;
 };
 
+/**
+ * Generate random id.  Each data source model must override this method.
+ * @param {String} modelName Model name
+ * @returns {<model dependent>} Data type varies from model to model,
+ */
+
+Connector.prototype.generateUniqueId = function(modelName) {
+  var idType = this.getDefaultIdType && this.getDefaultIdType();
+  var isTypeFunction = (typeof idType === 'function');
+  var id = this.generateValueByColumnType ? this.generateValueByColumnType(idType) :
+    (typeof idType === 'function' ? idType() : null);
+  return id;
+};
+
 /**
  * Get the metadata for the connector
  * @returns {Object} The metadata object