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| References | (12 earlier) <5315661c$0$2923$c3e8da3$76491128@news.astraweb.com> <mailman.7695.1393913099.18130.python-list@python.org> <53159540$0$2923$c3e8da3$76491128@news.astraweb.com> <mailman.7700.1393930643.18130.python-list@python.org> <87bnxloibq.fsf@elektro.pacujo.net> |
|---|---|
| Date | 2014-03-05 07:01 +1100 |
| Subject | Re: Functional programming |
| From | Chris Angelico <rosuav@gmail.com> |
| Newsgroups | comp.lang.python |
| Message-ID | <mailman.7737.1393963318.18130.python-list@python.org> (permalink) |
On Wed, Mar 5, 2014 at 6:49 AM, Marko Rauhamaa <marko@pacujo.net> wrote:
> public ConnectionPool(int maxConnections, String url) throws SQLException {
> try {
> super(() -> {
> try {
> return DriverManager.getConnection(url);
> } catch ( SQLException ex ) {
> throw new WrappedSqlException(ex);
> }
> }, maxConnections);
> } catch (WrappedSqlException wse) {
> throw wse.getSqlException();
> }
> }
>
> ===JAVA END=============================================================
>
> ===PYTHON BEGIN=========================================================
>
> def __init__(self, max_connections, url):
> super().__init__(lambda: DriverManager.get_connection(url), max_connections)
You're not doing the same thing, though. The Java rigmarole is to
ensure that an SQLException thrown in getConnection will propagate up,
despite (presumably) something inside the equivalent of
super().__init__ that swallows SQLExceptions. Of course it looks
tidier when you don't do the messy bit.
ChrisA
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Re: Functional programming Ned Batchelder <ned@nedbatchelder.com> - 2014-03-02 20:27 -0500
Re: Functional programming Rustom Mody <rustompmody@gmail.com> - 2014-03-03 03:45 -0800
Re: Functional programming Chris Angelico <rosuav@gmail.com> - 2014-03-03 23:20 +1100
Re: Functional programming Rustom Mody <rustompmody@gmail.com> - 2014-03-03 05:48 -0800
Re: Functional programming Rustom Mody <rustompmody@gmail.com> - 2014-03-03 05:51 -0800
Re: Functional programming Chris Angelico <rosuav@gmail.com> - 2014-03-04 01:00 +1100
Re: Functional programming Rustom Mody <rustompmody@gmail.com> - 2014-03-03 06:08 -0800
Re: Functional programming Chris Angelico <rosuav@gmail.com> - 2014-03-04 01:23 +1100
Re: Functional programming Rustom Mody <rustompmody@gmail.com> - 2014-03-03 06:38 -0800
Re: Functional programming Chris Angelico <rosuav@gmail.com> - 2014-03-04 02:01 +1100
Re: Functional programming Rustom Mody <rustompmody@gmail.com> - 2014-03-03 07:28 -0800
Re: Functional programming Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2014-03-03 17:27 +0000
Re: Functional programming Chris Angelico <rosuav@gmail.com> - 2014-03-04 05:37 +1100
Re: Functional programming Steven D'Aprano <steve@pearwood.info> - 2014-03-04 05:35 +0000
Re: Functional programming Rustom Mody <rustompmody@gmail.com> - 2014-03-03 21:59 -0800
Re: Functional programming Chris Angelico <rosuav@gmail.com> - 2014-03-04 17:04 +1100
Re: Functional programming Rustom Mody <rustompmody@gmail.com> - 2014-03-03 22:20 -0800
Re: Functional programming Steven D'Aprano <steve@pearwood.info> - 2014-03-04 08:56 +0000
Re: Functional programming Antoon Pardon <antoon.pardon@rece.vub.ac.be> - 2014-03-04 11:56 +0100
Re: Functional programming Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2014-03-04 11:47 +0000
Re: Functional programming Chris Angelico <rosuav@gmail.com> - 2014-03-05 00:01 +1100
OT Sine Rule [was Re: Functional programming] Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2014-03-04 14:25 +0000
Re: OT Sine Rule [was Re: Functional programming] Tim Chase <python.list@tim.thechases.com> - 2014-03-04 08:37 -0600
Re: OT Sine Rule [was Re: Functional programming] Mark Lawrence <breamoreboy@yahoo.co.uk> - 2014-03-04 14:42 +0000
Re: OT Sine Rule [was Re: Functional programming] Chris Angelico <rosuav@gmail.com> - 2014-03-05 02:06 +1100
Re: OT Sine Rule [was Re: Functional programming] Tim Chase <python.list@tim.thechases.com> - 2014-03-04 09:21 -0600
Re: Functional programming Antoon Pardon <antoon.pardon@rece.vub.ac.be> - 2014-03-05 09:59 +0100
Re: Functional programming Marko Rauhamaa <marko@pacujo.net> - 2014-03-04 21:49 +0200
Re: Functional programming Chris Angelico <rosuav@gmail.com> - 2014-03-05 07:01 +1100
Re: Functional programming Marko Rauhamaa <marko@pacujo.net> - 2014-03-04 22:50 +0200
Re: Functional programming Chris Angelico <rosuav@gmail.com> - 2014-03-05 08:06 +1100
Re: Functional programming Marko Rauhamaa <marko@pacujo.net> - 2014-03-04 23:21 +0200
Re: Functional programming Chris Angelico <rosuav@gmail.com> - 2014-03-05 08:26 +1100
Re: Functional programming Marko Rauhamaa <marko@pacujo.net> - 2014-03-04 23:43 +0200
Re: Functional programming Chris Angelico <rosuav@gmail.com> - 2014-03-05 08:52 +1100
Re: Functional programming Gregory Ewing <greg.ewing@canterbury.ac.nz> - 2014-03-05 12:57 +1300
Re: Functional programming Marko Rauhamaa <marko@pacujo.net> - 2014-03-05 02:11 +0200
Re: Functional programming "BartC" <bc@freeuk.com> - 2014-03-04 13:30 +0000
Re: Functional programming Chris Angelico <rosuav@gmail.com> - 2014-03-05 00:47 +1100
Re: Functional programming Mark Lawrence <breamoreboy@yahoo.co.uk> - 2014-03-04 14:05 +0000
Re: Functional programming Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2014-03-04 14:55 +0000
Re: Functional programming Chris Angelico <rosuav@gmail.com> - 2014-03-05 02:13 +1100
Re: Functional programming MRAB <python@mrabarnett.plus.com> - 2014-03-04 17:07 +0000
Re: Functional programming Chris Angelico <rosuav@gmail.com> - 2014-03-05 01:17 +1100
Re: Functional programming Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2014-03-04 15:18 +0000
Re: Functional programming Chris Angelico <rosuav@gmail.com> - 2014-03-05 02:28 +1100
Re: Functional programming Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2014-03-04 15:45 +0000
Re: Functional programming Chris Angelico <rosuav@gmail.com> - 2014-03-05 03:04 +1100
Re: Functional programming Antoon Pardon <antoon.pardon@rece.vub.ac.be> - 2014-03-05 10:09 +0100
Re: Functional programming "BartC" <bc@freeuk.com> - 2014-03-05 11:28 +0000
Re: Functional programming Chris Angelico <rosuav@gmail.com> - 2014-03-05 23:04 +1100
Re: Functional programming Marko Rauhamaa <marko@pacujo.net> - 2014-03-05 14:11 +0200
Re: Functional programming Gregory Ewing <greg.ewing@canterbury.ac.nz> - 2014-03-04 11:06 +1300
Re: Functional programming Ben Finney <ben+python@benfinney.id.au> - 2014-03-04 09:31 +1100
Re: Functional programming Grant Edwards <invalid@invalid.invalid> - 2014-03-04 14:59 +0000
Re: Functional programming Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2014-03-04 15:22 +0000
Re: Functional programming Chris Angelico <rosuav@gmail.com> - 2014-03-04 09:42 +1100
Re: Functional programming Ben Finney <ben+python@benfinney.id.au> - 2014-03-04 10:52 +1100
Re: Functional programming "BartC" <bc@freeuk.com> - 2014-03-04 09:41 +0000
Re: Functional programming 88888 Dihedral <dihedral88888@gmail.com> - 2014-03-03 16:35 -0800
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