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Factor out set-parameters

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This allows for a prepared statement to be reused for queries with different argument values.
This commit is contained in:
Sean Corfield 2019-01-10 11:32:46 -08:00
parent d25171e434
commit 85d400e28e
1 changed files with 12 additions and 4 deletions
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16
src/next/jdbc.clj
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@ -44,14 +44,22 @@
(defprotocol Transactable (defprotocol Transactable
(transact [this f opts])) (transact [this f opts]))
(defn set-parameters
""
^PreparedStatement
[^PreparedStatement ps params]
(loop [[p & more] params i 1]
(.setObject ps i p)
(if more
(recur more (inc i))
ps)))
(defn- prepare* (defn- prepare*
"Given a connection, a SQL statement, its parameters, and some options, "Given a connection, a SQL statement, its parameters, and some options,
return a PreparedStatement representing that." return a PreparedStatement representing that."
[^Connection con [sql & params] opts] [^Connection con [sql & params] opts]
(let [^PreparedStatement s (.prepareStatement con sql)] (doto (.prepareStatement con sql)
(doseq [p params] (set-parameters params)))
(.setObject s 1 p))
s))
(def ^:private isolation-levels (def ^:private isolation-levels
"Transaction isolation levels." "Transaction isolation levels."