[1단계 - JDBC 라이브러리 구현하기] 베베(최원용) 미션 제출합니다.

jdbc/src/main/java/org/springframework/jdbc/core/JdbcTemplate.java

@@ -29,9 +29,7 @@ public void update(final String sql, final Object... conditions) {
                 final PreparedStatement preparedStatement = connection.prepareStatement(sql)
         ) {
             log.debug("query : {}", sql);
-            for (int i = 1; i <= conditions.length; i++) {
-                preparedStatement.setObject(i, conditions[i - 1]);
-            }
+            setConditions(preparedStatement, conditions);
             preparedStatement.executeUpdate();
         } catch (SQLException e) {
             throw new DataAccessException(e);
@@ -44,9 +42,7 @@ public <T> Optional<T> queryForObject(final String sql, final RowMapper<T> rowMa
                 final PreparedStatement preparedStatement = connection.prepareStatement(sql)
         ) {
             log.debug("query : {}", sql);
-            for (int i = 1; i <= conditions.length; i++) {
-                preparedStatement.setObject(i, conditions[i - 1]);
-            }
+            setConditions(preparedStatement, conditions);
             final ResultSet resultSet = preparedStatement.executeQuery();
 
             if (resultSet.next()) {
@@ -66,7 +62,6 @@ public <T> List<T> query(final String sql, final RowMapper<T> rowMapper) {
                 final ResultSet resultSet = preparedStatement.executeQuery()
         ) {
             log.debug("query : {}", sql);
-
             final List<T> results = new ArrayList<>();
             while (resultSet.next()) {
                 results.add(rowMapper.mapRow(resultSet, resultSet.getRow()));
@@ -86,4 +81,10 @@ public Connection getConnection() {
         }
     }
 
+    private void setConditions(PreparedStatement preparedStatement, Object[] conditions) throws SQLException {
+        for (int i = 1; i <= conditions.length; i++) {
+            preparedStatement.setObject(i, conditions[i - 1]);
+        }
+    }
+
 }