Re: [xwiki-users] why hsqdb rather than h2?

2009-09-29 Thread Kalle Korhonen
On Sun, Sep 27, 2009 at 2:39 AM, Aaron Digulla digu...@hepe.com wrote:
 The H2Dialect is still broken; if you try to use it, you'll get
 exceptions when Hibernate tries to create the tables. Just use the HSQL
 dialect.

Table creation has worked for me with H2Dialect with latest Hibernate ok.

 All in all, it should be at most half an hour for someone who knows
 XWiki to replace one with the other. The major advantage of H2 over HSQL
 is not speed but H2 is under development while HSQL is pretty much dead.

Agree, but I've had several cases where H2 has turned out to be way
faster (DATEDIFF for example). Yes, it's easy to replace. H2 should be
just seen as version two of hsqldb (as the name implies) rather than a
completely different database though it's not completely backwards
compatible (but you can still use e.g. hsql dialect with h2).

Kalle
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[xwiki-users] why hsqdb rather than h2?

2009-09-26 Thread Kalle Korhonen
Just checking out the new 2.0 enterprise XWiki, great job! I'm just
wondering why you are using hsqldb in the standalone version rather
than h2 (http://www.h2database.com/html/main.html). H2 is in pretty
much every way an improved version over hsql and I've been very
impressed with its speed. Have you considered switching over and if
you decided against it, I'd be interested in hearing the reasons. If
you haven't considered it yet, I'll open an issue for it.

Kalle
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Re: [xwiki-users] why hsqdb rather than h2?

2009-09-26 Thread Kalle Korhonen
On Sat, Sep 26, 2009 at 9:11 PM, Sergiu Dumitriu ser...@xwiki.com wrote:
 This is the first time I hear about it. Looking a bit on its site, I
 think that this is a good candidate for replacing hsql as the default
 database (Derby is the other one). There is only one problem I can see
 with it: choosing the right hibernate dialect. On the H2 documentation,
 they warn that the official H2Dialect is buggy (how?), but that the hsql
 dialect can be used.

Ok. There are a few open issues still on Hibernate's side, but I think
the warning is kind of old. Though on H2's site they say it works with
hsql dialect as well, I wouldn't use it - that gives more problems
than solves. I've been using H2Dialect intensively and it has worked
in my application that contains some fairly complex queries without
any problems. They claim H2 performs much better than either hsql or
Derby in most situations and I can assert the claim - I had verified
it with my db tests (mostly related to write and transaction
performance) running against all three databases, and my results were
similar to what they mention at
http://www.h2database.com/html/performance.html.

Kalle
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Re: [xwiki-users] Any plans for swizzle-confluence?

2008-01-15 Thread Kalle Korhonen
On 1/15/08, Vincent Massol [EMAIL PROTECTED] wrote:


 I've pinged the swizzle guy a few times on the project email list during
 several months, but it seems he's not interested or too busy to put up a
 release.

 I've been trying to ping David Blevins a few times myself. Being such a
 nice guy I was surprised that he never answered. After I received your mail
 I was able to find him on IRC. He had never received my emails for some
 reason (spam, etc). He's now working on applying the last XWiki patch
 http://jira.codehaus.org/browse/SWIZZLE-24 but he needs help from Catalin
 to apply it (I've pinged Catalin yesterday but not answer so far).

 I think XWiki uses your own build for swizzle-confluence. I'd be happy if
 that version was available in some common Maven(2) repo as I'm trying to
 avoid maintaining my own version. Have you guys thought about what to do
 with it, maybe even hosting it as its own sub project as part of XWiki?

 Sure, but the best is really to work with David  and help him out to do
 releases of swizzle. I know he's been awfully busy but he's ready to do a
 quick release if we can answer the questions he has on our latest patch.


I absolutely agree. I appreciate David's work and willing to help in
whatever is needed for the release. The question in hand is the one for
SWIZZLE-24? Let me know if I can do something. Sorry for using XWiki's
mailing list for this.

Kalle
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[xwiki-users] Any plans for swizzle-confluence?

2008-01-14 Thread Kalle Korhonen
Hello Xwikiers,

I found swizzle-confluence an easy to use lib to pull data from
XWiki/Confluence. From previous discussions, I understand XWiki is also
using it internally. My biggest issue is that the released version is using
an ancient version of httpclient, but it's fixed in the svn. I've pinged the
swizzle guy a few times on the project email list during several months, but
it seems he's not interested or too busy to put up a release. I think XWiki
uses your own build for swizzle-confluence. I'd be happy if that version was
available in some common Maven(2) repo as I'm trying to avoid maintaining my
own version. Have you guys thought about what to do with it, maybe even
hosting it as its own sub project as part of XWiki?

Kalle
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