From neverov.biks.07.1 at gmail.com  Wed Jan 26 03:27:50 2011
From: neverov.biks.07.1 at gmail.com (Eugene N)
Date: Wed Jan 26 03:27:58 2011
Subject: [odb-users] odb compiler
Message-ID: <AANLkTim2-oo7BqZaPsSwuE-QjGLTF1rSi7iRfLsLEzAq@mail.gmail.com>

Hello

I hope to clarify some things about ODB.

Firstly, I want to add ODB to my program, but it uses a number of libraries,
and is compiled with g++ with l options. I was wondering, whether odb
compiler will complain about unresolved externals.

Secondly, if i have a class, objects of which i intend on storing in a
relational DB, but this class has object members from some other library,
where should i put pragmas - in my class, or in library classes?

Thanks for your replies.

Eugene
From boris at codesynthesis.com  Wed Jan 26 04:36:28 2011
From: boris at codesynthesis.com (Boris Kolpackov)
Date: Wed Jan 26 04:22:35 2011
Subject: [odb-users] ODB 1.1.0 released
Message-ID: <boris.20110126103307@codesynthesis.com>

Hi,

We have released ODB 1.1.0. The NEWS file entries for this release are
as follows:

  * Support for storing containers in the database. For example, now
    you can write:

    #pragma db object
    class person
    {
      ...

      std::set<std::string> emails_;
    };


    For more information refer to Chapter 5, "Containers" in the ODB manual
    as well as the 'container' example in the odb-examples package.

  * Support for unidirectional and bidirectional object relationships, 
    including lazy loading. For example:

    #pragma db object
    class employer
    {
      ...

      #pragma db inverse(employer_)
      std::vector<lazy_weak_ptr<employee> > employees_;
    };

    #pragma db object
    class employer
    {
      ...

      shared_ptr<employer> employer_;
    };
 
    For more information refer to Chapter 6, "Relationships" in the ODB
    manual as well as the 'relationship' and 'inverse' examples in the
    odb-examples package.

  * Support for composite value types. For example:

    #pragma db value
    class name
    {
      ...

      std::string first_;
      std::string last_;
    };

    #pragma db object
    class person
    {
      ...

      name name_;
    };

    For more information refer to Chapter 7, "Composite Value Types" in the
    ODB manual as well as the 'composite' example in the odb-examples package.

  * Support for sessions. A session is an application's unit of work that
    may encompass several database transactions. In this version of ODB a
    session is just an object cache. For more information refer to Chapter
    8, "Session" in the ODB manual.

  * Support for custom object pointers that allows you to use smart pointers
    to return, pass, and cache persistent objects. See Section 3.2, "Object
    Pointers" in the ODB manual for details.

  * Support for native SQL statement execution. See Section 3.9, "Executing
    Native SQL Statements" in the ODB manual for details.

  * New option, --profile/-p, instructs the ODB compiler to use the specified
    profile library. See the ODB compiler command line manual for details.

  * Support for literal names (template-id, derived type declarator such as
    pointers, etc) in data member declarations. Now, for example, you can use 
    std::vector<std::string> directly instead of having to create a typedef
    alias for it.

  * Support for inheritance from transient base types for object types and
    composite value types.

  * New example, 'schema', shows how to map persistent C++ classes to a custom
    database schema.

  * New options, --odb-prologue, --odb-epilogue, allow inclusion of extra code
    into the ODB compilation process. This can be useful for making additional
    traits specializations or ODB pragmas known to the ODB compiler.

  * Support for persistent classes without default constructors. For objects
    of such classes only the load() and find() database functions that
    populate an existing instance can be used. Similarly, only the load()
    query result iterator function which populates an existing instance can
    be used.

Source code and pre-compiled binary packages for this release are available
from the download page:

http://www.codesynthesis.com/products/odb/download.xhtml

SHA1 checksums for the files in this release are as follows:

770aeca0e626754906bb84ad8d3b1dc3a40cbe27  libodb-1.1.0.tar.bz2
4e931be19d1d5071510e3516b5719bbd81c60b14  libodb-1.1.0.tar.gz
6184ace925fa09755a9af0447a74cf16a4b2b96c  libodb-1.1.0.zip
89c07493e3355190cfd9e8756c42fa8dedcbafbb  libodb-mysql-1.1.0.tar.bz2
c5c5a6548805099e395a896eedc9bdb50f1d99c7  libodb-mysql-1.1.0.tar.gz
f611ab47135a1579471036f4557331028b2854e3  libodb-mysql-1.1.0.zip
3b334c933820977ca42dcdcb235e82dd913867e3  libodb-tracer-1.1.0.tar.bz2
29edfed7b29712d8ba920a8008f0cc2d077f1782  libodb-tracer-1.1.0.tar.gz
adec98afbb0099f2a5a5ee14cc4ace9aac640203  libodb-tracer-1.1.0.zip
7ba5e2ff86261960c312edcbe096ce7d4351f96b  odb-1.1.0-i686-linux-gnu.tar.bz2
c77d72678d6325f8c53c9cc2afc206f032872c8c  odb-1.1.0-i686-macosx.tar.bz2
2037bb3f324d763cd28b99a547ab68de81729ebf  odb-1.1.0-i686-solaris.tar.bz2
83ece19fe618b9f74ee3b50e00bf0dfce5e1c406  odb-1.1.0-i686-windows.zip
b8dc849093e65dd8501091e1837ad21dec008eee  odb-1.1.0-sparc-solaris.tar.bz2
1ec3c8368d6fff708e8ade250d4f08c54ee9cb98  odb-1.1.0.tar.bz2
ba92a4ebd60b600462644dc502f08124a25a6069  odb-1.1.0.tar.gz
cdaf55183708c049a8952cf3df21304a656ee5f6  odb-1.1.0-x86_64-linux-gnu.tar.bz2
284f9abbe988c10ea9bbfd8460ab31d1b7725f12  odb-1.1.0.zip
a0ba27b59c79671c7e481dc7c188a8202a3e0aa9  odb-examples-1.1.0.tar.bz2
3ab1eda2200955cba52e169a4bd23905c0d16d67  odb-examples-1.1.0.tar.gz
e66c017dcf1ed191506366d20014662f560453c9  odb-examples-1.1.0.zip
ef45ade0f0748c1803b8f22f6e790ddb74ff6c60  odb-tests-1.1.0.tar.bz2
14e80612e05e2e93b0b21e772f59c9719b4553d1  odb-tests-1.1.0.tar.gz
a5d1c3165d41abdeb20875be5668ef04acd7a1b0  odb-tests-1.1.0.zip

Enjoy,
	Boris

From boris at codesynthesis.com  Wed Jan 26 08:31:55 2011
From: boris at codesynthesis.com (Boris Kolpackov)
Date: Wed Jan 26 08:18:00 2011
Subject: [odb-users] odb compiler
In-Reply-To: <AANLkTim2-oo7BqZaPsSwuE-QjGLTF1rSi7iRfLsLEzAq@mail.gmail.com>
References: <AANLkTim2-oo7BqZaPsSwuE-QjGLTF1rSi7iRfLsLEzAq@mail.gmail.com>
Message-ID: <boris.20110126152635@codesynthesis.com>

Hi Eugene,

Eugene N <neverov.biks.07.1@gmail.com> writes:


> Firstly, I want to add ODB to my program, but it uses a number of libraries,
> and is compiled with g++ with l options. I was wondering, whether odb
> compiler will complain about unresolved externals.

I am not sure what you mean here. Are you trying to build the ODB compiler
itself instead of using a pre-compiled binary? Can you explain in a bit
more detail what you are trying to achieve?


> Secondly, if i have a class, objects of which i intend on storing in a
> relational DB, but this class has object members from some other library,
> where should i put pragmas - in my class, or in library classes?

By "object members" do you mean data members? If that's the case, then
the way to handle this situation depends on whether these types are 
simple or composite value types. Can you maybe show us a concrete
example from your application?

Boris

From boris at codesynthesis.com  Wed Jan 26 11:07:41 2011
From: boris at codesynthesis.com (Boris Kolpackov)
Date: Wed Jan 26 10:53:43 2011
Subject: [odb-users] odb compiler
In-Reply-To: <AANLkTinMa8OnUabusebc0M4QPPN0eqJ=LO=5zjfoBtnV@mail.gmail.com>
References: <AANLkTim2-oo7BqZaPsSwuE-QjGLTF1rSi7iRfLsLEzAq@mail.gmail.com>
	<boris.20110126152635@codesynthesis.com>
	<AANLkTinMa8OnUabusebc0M4QPPN0eqJ=LO=5zjfoBtnV@mail.gmail.com>
Message-ID: <boris.20110126175510@codesynthesis.com>

Hi Eugene,

In the future please keep your replies CC'ed to the odb-users mailing
list as discussed in the posting guidelines:

http://www.codesynthesis.com/support/posting-guidelines.xhtml

Eugene N <neverov.biks.07.1@gmail.com> writes:

> Thank you very much for your quick responce. What i basically ment was this
> - i have a lot of extrenal dependancies in my application (libraries), and i
> wasnt sure how would odb compiler react on them (if i try to compile my
> application with it).
> 
> I missed the description of odb on your website at first, so i thought it
> would try to link my application. But as it produces c++ code, my first
> question had no sence really, forgive my ignorance.

No problem. I am glad it is clearer now.


> My second question was this: i have a class (lets call it "A") with 4
> members ( sort of POD class), those members are vectors of sort (contiguous
> in memory, just like stl vectors, elements are bytes). I need to store a few
> thousands of "A" objects, i really need only three operations - find, add,
> and get.
> 
> So, i would like to know, would i have to modify only my "A" classes, in
> order to persist them with ODB, or would i have to modify those internal
> vector classes (which are from external library)?

No, you shouldn't need to modify the vector classes from the external
library. The way to handle this depends on how you want to store these
vectors in the database. Seeing that their elements are bytes, then
one possible representation would be to store them as BLOBs. For this,
you will need to provide specializations of the value_traits template
which perform the conversion between these vectors and the database
type. This should be fairly simple and the 'mapping' example in the
odb-examples package shows how to do this. Also see Section 9.2.1,
"type" in the ODB manual.

The other possible way to handle these vectors would be to store them
as containers so that each member of a vector type is mapped to a
table and each element in a container is stored in a separate row.
Container support was added in the just-released ODB 1.1.0. Otherwise,
this also should be fairly easy to implement, as discussed in Section
5.4, "Using Custom Containers" in the ODB manual.

Boris

From boris at codesynthesis.com  Thu Jan 27 06:45:12 2011
From: boris at codesynthesis.com (Boris Kolpackov)
Date: Thu Jan 27 06:31:04 2011
Subject: [odb-users] Re: RPMs for ODB
In-Reply-To: <AANLkTik8CdGQNKPtd-47MYTL=co+R8M1VG-hmkSY_mKe@mail.gmail.com>
References: <ihpajo$deu$1@dough.gmane.org>
	<AANLkTik8CdGQNKPtd-47MYTL=co+R8M1VG-hmkSY_mKe@mail.gmail.com>
Message-ID: <boris.20110127134003@codesynthesis.com>

Hi Chris,

[CC'ed odb-users mailing list to my reply.]

Chris Morgan <christopher.j.morgan@gmail.com> writes:

> Are there any plans to provide a set of RPMs to the RedHat and/or
> Fedora projects at some point?

I was hoping Fedora community would do this at some point (and put
ODB into their repository). I wonder if there is any way to suggest
software for packaging in Fedora?


> We were looking at ODB for a recent project but were unable to use
> it because our customer requires RPMs for 3rd party libraries.

Are you only looking for RPMs for the runtime libraries (libodb and
libodb-mysql; in other words libraries that you would normally
distribute with your application). Or for the whole system, including
the ODB compiler?

Boris

From christopher.j.morgan at gmail.com  Thu Jan 27 08:46:25 2011
From: christopher.j.morgan at gmail.com (Chris Morgan)
Date: Thu Jan 27 09:29:53 2011
Subject: [odb-users] Re: RPMs for ODB
In-Reply-To: <boris.20110127134003@codesynthesis.com>
References: <ihpajo$deu$1@dough.gmane.org>
	<AANLkTik8CdGQNKPtd-47MYTL=co+R8M1VG-hmkSY_mKe@mail.gmail.com>
	<boris.20110127134003@codesynthesis.com>
Message-ID: <AANLkTimGYq+7E2GFr6jNE96KK+s=zRuBC3wNm=jUK5Eh@mail.gmail.com>

On Thu, Jan 27, 2011 at 03:45, Boris Kolpackov <boris@codesynthesis.com> wrote:
> Hi Chris,
>
> [CC'ed odb-users mailing list to my reply.]
>
> Chris Morgan <christopher.j.morgan@gmail.com> writes:
>
>> Are there any plans to provide a set of RPMs to the RedHat and/or
>> Fedora projects at some point?
>
> I was hoping Fedora community would do this at some point (and put
> ODB into their repository). I wonder if there is any way to suggest
> software for packaging in Fedora?

http://fedoraproject.org/wiki/Package_Review_Process

>
>> We were looking at ODB for a recent project but were unable to use
>> it because our customer requires RPMs for 3rd party libraries.
>
> Are you only looking for RPMs for the runtime libraries (libodb and
> libodb-mysql; in other words libraries that you would normally
> distribute with your application). Or for the whole system, including
> the ODB compiler?

I would imagine a -devel RPM for the compiler and any include files,
etc. needed for development with ODB.  Then possibly a -libs file for
the runtime libraries and maybe even a separate -docs RPM (that's
similar to the mysql++ packaging scheme).

-Chris

From boris at codesynthesis.com  Thu Jan 27 10:01:17 2011
From: boris at codesynthesis.com (Boris Kolpackov)
Date: Thu Jan 27 09:47:06 2011
Subject: [odb-users] Re: RPMs for ODB
In-Reply-To: <AANLkTimGYq+7E2GFr6jNE96KK+s=zRuBC3wNm=jUK5Eh@mail.gmail.com>
References: <ihpajo$deu$1@dough.gmane.org>
	<AANLkTik8CdGQNKPtd-47MYTL=co+R8M1VG-hmkSY_mKe@mail.gmail.com>
	<boris.20110127134003@codesynthesis.com>
	<AANLkTimGYq+7E2GFr6jNE96KK+s=zRuBC3wNm=jUK5Eh@mail.gmail.com>
Message-ID: <boris.20110127165450@codesynthesis.com>

Hi Chris,

Chris Morgan <christopher.j.morgan@gmail.com> writes:

> http://fedoraproject.org/wiki/Package_Review_Process

Thanks for the link. This, however, would require us to package ODB
ourselves. We would prefer to find a Fedora package maintainer that
is interested in doing it. This is what happened with our other 
projects.


> I would imagine a -devel RPM for the compiler and any include files,
> etc. needed for development with ODB.  Then possibly a -libs file for
> the runtime libraries and maybe even a separate -docs RPM (that's
> similar to the mysql++ packaging scheme).

Yes, that's what a full set of packages would look like. I was more
interested to know a minimal set of packages that would allow you to
use ODB in your project. If it were just the runtime libraries, then
we could try to package those as an interim solution.

Boris

From mksong at vt.edu  Mon Jan 31 19:33:57 2011
From: mksong at vt.edu (Myoungkyu Song)
Date: Mon Jan 31 19:34:24 2011
Subject: [odb-users] [ODB] About the issue about installing
	libodb-mysql-1.1.0
Message-ID: <AANLkTikh5qfw8wu7eSbd=dCkDUpuTVARsNtLyTZX+_+e@mail.gmail.com>

Hello, Boris

While installing 'libodb-mysql-1.1.0', I got some problem; it was
unable to find 'libmysqlclient_r'.
I installed MySQL which is the version, 'Ver 14.12 Distrib 5.0.51a'.
Here is my information I am using.
--------------------------------------------------------------------------------
$ dpkg -l | grep mysql
ii ?libdbd-mysql-perl ? ? ? ? ? ? ? ? ? ? ? ? ?4.005-1
? ? ? ?A Perl5 database interface to the MySQL data
ii ?libmysqlclient15off ? ? ? ? ? ? ? ? ? ? ? ?5.0.51a-3ubuntu5.8
 ? ? ? MySQL database client library
ii ?mysql-client-5.0 ? ? ? ? ? ? ? ? ? ? ? ? ? 5.0.51a-3ubuntu5.8
 ? ? ? MySQL database client binaries
ii ?mysql-common ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? 5.0.51a-3ubuntu5.8
 ? ? ? MySQL database common files
ii ?mysql-server ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? 5.0.51a-3ubuntu5.8
 ? ? ? MySQL database server (meta package dependin
ii ?mysql-server-5.0 ? ? ? ? ? ? ? ? ? ? ? ? ? 5.0.51a-3ubuntu5.8
 ? ? ? MySQL database server binaries
$
$ ldconfig -p | grep mysql
libmysqlclient_r.so.15 (libc6,x86-64) => /usr/lib/libmysqlclient_r.so.15
libmysqlclient.so.15 (libc6,x86-64) => /usr/lib/libmysqlclient.so.15
$
$ ls -la /usr/lib/*mysql*
lrwxrwxrwx 1 root root ? ? ?26 2011-01-31 19:04
/usr/lib/libmysqlclient_r.so.15 -> libmysqlclient_r.so.15.0.0
-rw-r--r-- 1 root root 2113216 2010-11-10 00:08
/usr/lib/libmysqlclient_r.so.15.0.0
lrwxrwxrwx 1 root root ? ? ?24 2011-01-31 19:04
/usr/lib/libmysqlclient.so.15 -> libmysqlclient.so.15.0.0
-rw-r--r-- 1 root root 2104672 2010-11-10 00:08
/usr/lib/libmysqlclient.so.15.0.0
$
$ cat /etc/issue
Ubuntu 8.04.4 LTS \n \l
--------------------------------------------------------------------------------
#1) I downloaded 'mysql-connector-c-6.0.1-linux-glibc2.3-x86-64bit'
and extracted the archived file to my local path.
#2) I carried out the following three command, respectively, each of
which was not working.
$
$./configure CPPFLAGS="-I/home/mksong/mysql_install_file/mysql-connector-c-6.0.1-linux-glibc2.3-x86-64bit/include"
LDFLAGS="-L/home/mksong/mysql_install_file/mysql-connector-c-6.0.1-linux-glibc2.3-x86-64bit/lib"
...
...
checking for libmysqlclient_r... no
configure: error: libmysqlclient_r is not found; consider using
CPPFLAGS/LDFLAGS to specify its location
$
$ ./configure CPPFLAGS="-I/usr/include" LDFLAGS="-L/usr/lib"
$
$ ./configure
$
--------------------------------------------------------------------------------

Could you give me some comments about that?
Best regards,
Myoungkyu Song

From mksong at vt.edu  Mon Jan 31 21:11:49 2011
From: mksong at vt.edu (Myoungkyu Song)
Date: Mon Jan 31 21:12:16 2011
Subject: [odb-users] Re: [ODB] About the issue about installing
	libodb-mysql-1.1.0
In-Reply-To: <AANLkTikh5qfw8wu7eSbd=dCkDUpuTVARsNtLyTZX+_+e@mail.gmail.com>
References: <AANLkTikh5qfw8wu7eSbd=dCkDUpuTVARsNtLyTZX+_+e@mail.gmail.com>
Message-ID: <AANLkTikx0Nw9ffR2c9bVejrYJB-t7L7yc0ZdXwVikSeG@mail.gmail.com>

Hello, Boris

I was able to figure out the below issue by installing the
'mysql-connector-c' from the source code, rather than the distributed
binary version from the MySQL community.
Sorry about any convenience.

Best regards,
Myoungkyu Song

On Mon, Jan 31, 2011 at 7:33 PM, Myoungkyu Song <mksong@vt.edu> wrote:
> Hello, Boris
>
> While installing 'libodb-mysql-1.1.0', I got some problem; it was
> unable to find 'libmysqlclient_r'.
> I installed MySQL which is the version, 'Ver 14.12 Distrib 5.0.51a'.
> Here is my information I am using.
> --------------------------------------------------------------------------------
> $ dpkg -l | grep mysql
> ii ?libdbd-mysql-perl ? ? ? ? ? ? ? ? ? ? ? ? ?4.005-1
> ? ? ? ?A Perl5 database interface to the MySQL data
> ii ?libmysqlclient15off ? ? ? ? ? ? ? ? ? ? ? ?5.0.51a-3ubuntu5.8
> ?? ? ? MySQL database client library
> ii ?mysql-client-5.0 ? ? ? ? ? ? ? ? ? ? ? ? ? 5.0.51a-3ubuntu5.8
> ?? ? ? MySQL database client binaries
> ii ?mysql-common ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? 5.0.51a-3ubuntu5.8
> ?? ? ? MySQL database common files
> ii ?mysql-server ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? 5.0.51a-3ubuntu5.8
> ?? ? ? MySQL database server (meta package dependin
> ii ?mysql-server-5.0 ? ? ? ? ? ? ? ? ? ? ? ? ? 5.0.51a-3ubuntu5.8
> ?? ? ? MySQL database server binaries
> $
> $ ldconfig -p | grep mysql
> libmysqlclient_r.so.15 (libc6,x86-64) => /usr/lib/libmysqlclient_r.so.15
> libmysqlclient.so.15 (libc6,x86-64) => /usr/lib/libmysqlclient.so.15
> $
> $ ls -la /usr/lib/*mysql*
> lrwxrwxrwx 1 root root ? ? ?26 2011-01-31 19:04
> /usr/lib/libmysqlclient_r.so.15 -> libmysqlclient_r.so.15.0.0
> -rw-r--r-- 1 root root 2113216 2010-11-10 00:08
> /usr/lib/libmysqlclient_r.so.15.0.0
> lrwxrwxrwx 1 root root ? ? ?24 2011-01-31 19:04
> /usr/lib/libmysqlclient.so.15 -> libmysqlclient.so.15.0.0
> -rw-r--r-- 1 root root 2104672 2010-11-10 00:08
> /usr/lib/libmysqlclient.so.15.0.0
> $
> $ cat /etc/issue
> Ubuntu 8.04.4 LTS \n \l
> --------------------------------------------------------------------------------
> #1) I downloaded 'mysql-connector-c-6.0.1-linux-glibc2.3-x86-64bit'
> and extracted the archived file to my local path.
> #2) I carried out the following three command, respectively, each of
> which was not working.
> $
> $./configure CPPFLAGS="-I/home/mksong/mysql_install_file/mysql-connector-c-6.0.1-linux-glibc2.3-x86-64bit/include"
> LDFLAGS="-L/home/mksong/mysql_install_file/mysql-connector-c-6.0.1-linux-glibc2.3-x86-64bit/lib"
> ...
> ...
> checking for libmysqlclient_r... no
> configure: error: libmysqlclient_r is not found; consider using
> CPPFLAGS/LDFLAGS to specify its location
> $
> $ ./configure CPPFLAGS="-I/usr/include" LDFLAGS="-L/usr/lib"
> $
> $ ./configure
> $
> --------------------------------------------------------------------------------
>
> Could you give me some comments about that?
> Best regards,
> Myoungkyu Song
>