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1 | (* |
2 | * SQL database interfaces for Standard ML | |
3 | * Copyright (C) 2003 Adam Chlipala | |
4 | * | |
5 | * This library is free software; you can redistribute it and/or | |
6 | * modify it under the terms of the GNU Lesser General Public | |
7 | * License as published by the Free Software Foundation; either | |
8 | * version 2.1 of the License, or (at your option) any later version. | |
9 | * | |
10 | * This library is distributed in the hope that it will be useful, | |
11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
13 | * Lesser General Public License for more details. | |
14 | * | |
15 | * You should have received a copy of the GNU Lesser General Public | |
16 | * License along with this library; if not, write to the Free Software | |
17 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
18 | *) | |
19 | ||
20 | (* Signature to be implemented to make use of a new client *) | |
21 | ||
22 | signature SQL_DRIVER = | |
23 | sig | |
24 | type conn | |
25 | (* SQL client connection *) | |
26 | ||
27 | exception Sql of string | |
28 | (* All-purpose exception *) | |
29 | ||
30 | val conn : string -> conn | |
31 | (* Connect to a server based on a string of information *) | |
32 | val close : conn -> unit | |
33 | (* Close a connection *) | |
34 | val dml : conn -> string -> string | |
35 | (* Execute a DML command over a connection, returning a result message *) | |
36 | val fold : conn -> (string list * 'a -> 'a) -> 'a -> string -> 'a | |
37 | (* Behaves like List.foldl, applied over the result rows of a query *) | |
38 | ||
39 | type timestamp = Time.time | |
40 | exception Format of string | |
41 | ||
42 | (* Conversions between SML values and their string representations from SQL queries *) | |
c7a46c0f | 43 | val isNull : string -> bool |
f147efc8 AC |
44 | val intToSql : int -> string |
45 | val intFromSql : string -> int | |
46 | val stringToSql : string -> string | |
47 | val stringFromSql : string -> string | |
48 | val timestampToSql : timestamp -> string | |
2f09ba1e | 49 | val timestampToSqlUnquoted : timestamp -> string |
f147efc8 AC |
50 | val timestampFromSql : string -> timestamp |
51 | val realToSql : real -> string | |
52 | val realFromSql : string -> real | |
53 | val boolToSql : bool -> string | |
54 | val boolFromSql : string -> bool | |
55 | end |