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我已經定義了以下代碼,以允許我在java.sql.PreparedStatement
中設置列值。這段代碼是否合理/慣用?如何改進?使用Clojure do-template設置預準備語句列
(use '(clojure.template :only [do-template]))
; (import all java types not in java.lang)
(defprotocol SetPreparedStatement
(set-prepared-statement [this prepared-statement index]))
(do-template [type-name set-name]
(extend-type type-name
SetPreparedStatement
(set-prepared-statement [this prepared-statement index]
(set-name prepared-statement index this)))
BigDecimal .setBigDecimal
Boolean .setBoolean
Byte .setByte
Date .setDate
Double .setDouble
Float .setFloat
Integer .setInt
Long .setLong
Object .setObject
Short .setShort
Time .setTime
Timestamp .setTimestamp)
; Sample use
(set-prepared-statement 42 some-prepared-statement 1)