Fixes #137 by adding user/password arities to get-connection

Also calls `.getConnection` with user/password under the hood if those 
are present in the `opts` hash map.

CHANGELOG.md

@@ -3,6 +3,7 @@
 Only accretive/fixative changes will be made from now on.
 
 Changes made to **develop** since the 1.1.569 release:
+* Fix #137 by adding support for specifying username and password per-connection (if your datasource supports this).
 * Document SQLite handling of `bool` and `bit` columns in a new **Tips & Tricks** section, inspired by #134.
 * Address #133 by adding `:return-generated-keys` as an option on `execute-batch!`.
 

src/next/jdbc.clj

@@ -144,13 +144,23 @@
   and applies the `:auto-commit` and/or `:read-only` options, if provided.
 
   If you call `get-connection` on anything else, it will call `get-datasource`
-  first to try to get a `DataSource`, and then call `get-connection` on that."
+  first to try to get a `DataSource`, and then call `get-connection` on that.
+
+  If you want different per-connection username/password values, you can
+  either put `:user` and `:password` into the `opts` hash map or pass them
+  as positional arguments."
   (^java.sql.Connection
     [spec]
     (p/get-connection spec {}))
   (^java.sql.Connection
     [spec opts]
-    (p/get-connection spec opts)))
+    (p/get-connection spec opts))
+  (^java.sql.Connection
+    [spec user password]
+    (p/get-connection spec {:user user :password password}))
+  (^java.sql.Connection
+    [spec user password opts]
+    (p/get-connection spec (assoc opts :user user :password password))))
 
 (defn prepare
   "Given a connection to a database, and a vector containing SQL and any

src/next/jdbc/connection.clj

@@ -341,7 +341,11 @@
       via reflection, e.g., :autoCommit, :readOnly, :schema..."
   ^Connection
   [^DataSource datasource opts]
-  (let [^Connection connection (.getConnection datasource)]
+  (let [^Connection connection (if (and (:user opts) (:password opts))
+                                 (.getConnection datasource
+                                                 (:user opts)
+                                                 (:password opts))
+                                 (.getConnection datasource))]
     ;; fast, specific option handling:
     (when (contains? opts :auto-commit)
       (.setAutoCommit connection (boolean (:auto-commit opts))))