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./*.class
./build
./dist
./src/**/*.class
./src/.ropeproject/globalnames
./src/.ropeproject/history
./src/.ropeproject/objectdb
**/*.bak
**/mem.*

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GNU GENERAL PUBLIC LICENSE
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may consider it more useful to permit linking proprietary applications with
the library. If this is what you want to do, use the GNU Lesser General
Public License instead of this License. But first, please read
<http://www.gnu.org/philosophy/why-not-lgpl.html>.

165
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GNU LESSER GENERAL PUBLIC LICENSE
Version 3, 29 June 2007
Copyright (C) 2007 Free Software Foundation, Inc. <http://fsf.org/>
Everyone is permitted to copy and distribute verbatim copies
of this license document, but changing it is not allowed.
This version of the GNU Lesser General Public License incorporates
the terms and conditions of version 3 of the GNU General Public
License, supplemented by the additional permissions listed below.
0. Additional Definitions.
As used herein, "this License" refers to version 3 of the GNU Lesser
General Public License, and the "GNU GPL" refers to version 3 of the GNU
General Public License.
"The Library" refers to a covered work governed by this License,
other than an Application or a Combined Work as defined below.
An "Application" is any work that makes use of an interface provided
by the Library, but which is not otherwise based on the Library.
Defining a subclass of a class defined by the Library is deemed a mode
of using an interface provided by the Library.
A "Combined Work" is a work produced by combining or linking an
Application with the Library. The particular version of the Library
with which the Combined Work was made is also called the "Linked
Version".
The "Minimal Corresponding Source" for a Combined Work means the
Corresponding Source for the Combined Work, excluding any source code
for portions of the Combined Work that, considered in isolation, are
based on the Application, and not on the Linked Version.
The "Corresponding Application Code" for a Combined Work means the
object code and/or source code for the Application, including any data
and utility programs needed for reproducing the Combined Work from the
Application, but excluding the System Libraries of the Combined Work.
1. Exception to Section 3 of the GNU GPL.
You may convey a covered work under sections 3 and 4 of this License
without being bound by section 3 of the GNU GPL.
2. Conveying Modified Versions.
If you modify a copy of the Library, and, in your modifications, a
facility refers to a function or data to be supplied by an Application
that uses the facility (other than as an argument passed when the
facility is invoked), then you may convey a copy of the modified
version:
a) under this License, provided that you make a good faith effort to
ensure that, in the event an Application does not supply the
function or data, the facility still operates, and performs
whatever part of its purpose remains meaningful, or
b) under the GNU GPL, with none of the additional permissions of
this License applicable to that copy.
3. Object Code Incorporating Material from Library Header Files.
The object code form of an Application may incorporate material from
a header file that is part of the Library. You may convey such object
code under terms of your choice, provided that, if the incorporated
material is not limited to numerical parameters, data structure
layouts and accessors, or small macros, inline functions and templates
(ten or fewer lines in length), you do both of the following:
a) Give prominent notice with each copy of the object code that the
Library is used in it and that the Library and its use are
covered by this License.
b) Accompany the object code with a copy of the GNU GPL and this license
document.
4. Combined Works.
You may convey a Combined Work under terms of your choice that,
taken together, effectively do not restrict modification of the
portions of the Library contained in the Combined Work and reverse
engineering for debugging such modifications, if you also do each of
the following:
a) Give prominent notice with each copy of the Combined Work that
the Library is used in it and that the Library and its use are
covered by this License.
b) Accompany the Combined Work with a copy of the GNU GPL and this license
document.
c) For a Combined Work that displays copyright notices during
execution, include the copyright notice for the Library among
these notices, as well as a reference directing the user to the
copies of the GNU GPL and this license document.
d) Do one of the following:
0) Convey the Minimal Corresponding Source under the terms of this
License, and the Corresponding Application Code in a form
suitable for, and under terms that permit, the user to
recombine or relink the Application with a modified version of
the Linked Version to produce a modified Combined Work, in the
manner specified by section 6 of the GNU GPL for conveying
Corresponding Source.
1) Use a suitable shared library mechanism for linking with the
Library. A suitable mechanism is one that (a) uses at run time
a copy of the Library already present on the user's computer
system, and (b) will operate properly with a modified version
of the Library that is interface-compatible with the Linked
Version.
e) Provide Installation Information, but only if you would otherwise
be required to provide such information under section 6 of the
GNU GPL, and only to the extent that such information is
necessary to install and execute a modified version of the
Combined Work produced by recombining or relinking the
Application with a modified version of the Linked Version. (If
you use option 4d0, the Installation Information must accompany
the Minimal Corresponding Source and Corresponding Application
Code. If you use option 4d1, you must provide the Installation
Information in the manner specified by section 6 of the GNU GPL
for conveying Corresponding Source.)
5. Combined Libraries.
You may place library facilities that are a work based on the
Library side by side in a single library together with other library
facilities that are not Applications and are not covered by this
License, and convey such a combined library under terms of your
choice, if you do both of the following:
a) Accompany the combined library with a copy of the same work based
on the Library, uncombined with any other library facilities,
conveyed under the terms of this License.
b) Give prominent notice with the combined library that part of it
is a work based on the Library, and explaining where to find the
accompanying uncombined form of the same work.
6. Revised Versions of the GNU Lesser General Public License.
The Free Software Foundation may publish revised and/or new versions
of the GNU Lesser General Public License from time to time. Such new
versions will be similar in spirit to the present version, but may
differ in detail to address new problems or concerns.
Each version is given a distinguishing version number. If the
Library as you received it specifies that a certain numbered version
of the GNU Lesser General Public License "or any later version"
applies to it, you have the option of following the terms and
conditions either of that published version or of any later version
published by the Free Software Foundation. If the Library as you
received it does not specify a version number of the GNU Lesser
General Public License, you may choose any version of the GNU Lesser
General Public License ever published by the Free Software Foundation.
If the Library as you received it specifies that a proxy can decide
whether future versions of the GNU Lesser General Public License shall
apply, that proxy's public statement of acceptance of any version is
permanent authorization for you to choose that version for the
Library.

134
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=====================================================================
JayDeBeApi - bridge from JDBC database drivers to Python DB-API
=====================================================================
The JayDeBeApi library allows you to connect from Python code to
databases using Java `JDBC
<http://java.sun.com/products/jdbc/overview.html>`_. It provides a
Python DB-API_ v2.0 to that database.
It works on ordinary Python (cPython) using the JPype_ Java
integration or on `Jython <http://www.jython.org/>`_ to make use of
the Java JDBC driver.
It has been tested with `Hypersonic SQL (HSQLDB)
<http://hsqldb.org/>`_ and `IBM DB2
<http://www.ibm.com/software/data/db2/>`_ for z/OS.
In contrast to zxJDBC from the Jython project JayDeBeApi let's you
access a database with Jython AND Python with only minor code
modifications. JayDeBeApi's future goal is to provide a unique and
fast interface to different types of JDBC-Drivers through a flexible
plug-in mechanism.
.. contents::
Install
=======
You can get and install JayDeBeApi with `easy_install
<http://peak.telecommunity.com/DevCenter/EasyInstall>`_ ::
$ easy_install JayDeBeApi
If you want to install JayDeBeApi in Jython make sure to have
EasyInstall available for it.
Or you can get a copy of the source branch using `bzr
<http://bazaar.canonical.com/>`_ by running ::
$ bzr branch lp:jaydebeapi
and install it with ::
$ python setup.py install
or if you are using Jython use ::
$ jython setup.py install
It has been tested with Jython 2.5.2.
If you are using cPython ensure that you have installed JPype_
properly. It has been tested with JPype 0.5.4.
Usage
=====
Basically you just import the ``jaydebeapi`` Python module and execute
the ``connect`` method. This gives you a DB-API_ conform connection to
the database.
The first argument to ``connect`` is the name of the Java driver
class. The rest of the arguments are internally passed to the Java
``DriverManager.getConnection`` method. See the Javadoc of
``DriverManager`` class for details.
Here is an example:
>>> import jaydebeapi
>>> conn = jaydebeapi.connect('org.hsqldb.jdbcDriver',
... 'jdbc:hsqldb:mem', 'SA', '')
>>> curs = conn.cursor()
>>> curs.execute('create table CUSTOMER'
... '("CUST_ID" INTEGER not null,'
... ' "NAME" VARCHAR not null,'
... ' primary key ("CUST_ID"))'
... )
>>> curs.execute("insert into CUSTOMER values (1, 'John')")
>>> curs.execute("select * from CUSTOMER")
>>> curs.fetchall()
[(1, u'John')]
You probably have to configure Jython or JPype to actually be able to
access the database driver's jar files. If I want to connect to a HSQL
in memory database on my Ubuntu machine I'm starting Python by running ::
$ JAVA_HOME=/usr/lib/jvm/java-6-openjdk python
Now I have to configure JPype
>>> jar = '/path/to/my/driver/hsqldb.jar'
>>> args='-Djava.class.path=%s' % jar
>>> jpype.startJVM(jvm_path, args)
or in Jython I have to
>>> jar = '/path/to/my/driver/hsqldb.jar'
>>> import sys
>>> sys.path.append(jar)
Contributing
============
Please submit `bugs and patches
<https://bugs.launchpad.net/jaydebeapi>`_. All contributors will be
acknowledged. Thanks!
License
=======
JayDeBeApi is released under the GNU Lesser General Public license
(LGPL). See the file ``COPYING`` and ``COPYING.LESSER`` in the
distribution for details.
Changelog
=========
- 0.1
- Initial release
To do
=====
- Extract Java calls to seperate Java methods to increase performance.
- Check if https://code.launchpad.net/dbapi-compliance can help making
JayDeBeApi more DB-API complient.
- Test it on different databases and provide a flexible db specific
pluign mechanism.
- SQLAlchemy modules (seperate project)
.. _DB-API: http://www.python.org/dev/peps/pep-0249/
.. _JPype: http://jpype.sourceforge.net/

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#!python
"""Bootstrap setuptools installation
If you want to use setuptools in your package's setup.py, just include this
file in the same directory with it, and add this to the top of your setup.py::
from ez_setup import use_setuptools
use_setuptools()
If you want to require a specific version of setuptools, set a download
mirror, or use an alternate download directory, you can do so by supplying
the appropriate options to ``use_setuptools()``.
This file can also be run as a script to install or upgrade setuptools.
"""
import sys
DEFAULT_VERSION = "0.6c9"
DEFAULT_URL = "http://pypi.python.org/packages/%s/s/setuptools/" % sys.version[:3]
md5_data = {
'setuptools-0.6b1-py2.3.egg': '8822caf901250d848b996b7f25c6e6ca',
'setuptools-0.6b1-py2.4.egg': 'b79a8a403e4502fbb85ee3f1941735cb',
'setuptools-0.6b2-py2.3.egg': '5657759d8a6d8fc44070a9d07272d99b',
'setuptools-0.6b2-py2.4.egg': '4996a8d169d2be661fa32a6e52e4f82a',
'setuptools-0.6b3-py2.3.egg': 'bb31c0fc7399a63579975cad9f5a0618',
'setuptools-0.6b3-py2.4.egg': '38a8c6b3d6ecd22247f179f7da669fac',
'setuptools-0.6b4-py2.3.egg': '62045a24ed4e1ebc77fe039aa4e6f7e5',
'setuptools-0.6b4-py2.4.egg': '4cb2a185d228dacffb2d17f103b3b1c4',
'setuptools-0.6c1-py2.3.egg': 'b3f2b5539d65cb7f74ad79127f1a908c',
'setuptools-0.6c1-py2.4.egg': 'b45adeda0667d2d2ffe14009364f2a4b',
'setuptools-0.6c2-py2.3.egg': 'f0064bf6aa2b7d0f3ba0b43f20817c27',
'setuptools-0.6c2-py2.4.egg': '616192eec35f47e8ea16cd6a122b7277',
'setuptools-0.6c3-py2.3.egg': 'f181fa125dfe85a259c9cd6f1d7b78fa',
'setuptools-0.6c3-py2.4.egg': 'e0ed74682c998bfb73bf803a50e7b71e',
'setuptools-0.6c3-py2.5.egg': 'abef16fdd61955514841c7c6bd98965e',
'setuptools-0.6c4-py2.3.egg': 'b0b9131acab32022bfac7f44c5d7971f',
'setuptools-0.6c4-py2.4.egg': '2a1f9656d4fbf3c97bf946c0a124e6e2',
'setuptools-0.6c4-py2.5.egg': '8f5a052e32cdb9c72bcf4b5526f28afc',
'setuptools-0.6c5-py2.3.egg': 'ee9fd80965da04f2f3e6b3576e9d8167',
'setuptools-0.6c5-py2.4.egg': 'afe2adf1c01701ee841761f5bcd8aa64',
'setuptools-0.6c5-py2.5.egg': 'a8d3f61494ccaa8714dfed37bccd3d5d',
'setuptools-0.6c6-py2.3.egg': '35686b78116a668847237b69d549ec20',
'setuptools-0.6c6-py2.4.egg': '3c56af57be3225019260a644430065ab',
'setuptools-0.6c6-py2.5.egg': 'b2f8a7520709a5b34f80946de5f02f53',
'setuptools-0.6c7-py2.3.egg': '209fdf9adc3a615e5115b725658e13e2',
'setuptools-0.6c7-py2.4.egg': '5a8f954807d46a0fb67cf1f26c55a82e',
'setuptools-0.6c7-py2.5.egg': '45d2ad28f9750e7434111fde831e8372',
'setuptools-0.6c8-py2.3.egg': '50759d29b349db8cfd807ba8303f1902',
'setuptools-0.6c8-py2.4.egg': 'cba38d74f7d483c06e9daa6070cce6de',
'setuptools-0.6c8-py2.5.egg': '1721747ee329dc150590a58b3e1ac95b',
'setuptools-0.6c9-py2.3.egg': 'a83c4020414807b496e4cfbe08507c03',
'setuptools-0.6c9-py2.4.egg': '260a2be2e5388d66bdaee06abec6342a',
'setuptools-0.6c9-py2.5.egg': 'fe67c3e5a17b12c0e7c541b7ea43a8e6',
'setuptools-0.6c9-py2.6.egg': 'ca37b1ff16fa2ede6e19383e7b59245a',
}
import sys, os
try: from hashlib import md5
except ImportError: from md5 import md5
def _validate_md5(egg_name, data):
if egg_name in md5_data:
digest = md5(data).hexdigest()
if digest != md5_data[egg_name]:
print >>sys.stderr, (
"md5 validation of %s failed! (Possible download problem?)"
% egg_name
)
sys.exit(2)
return data
def use_setuptools(
version=DEFAULT_VERSION, download_base=DEFAULT_URL, to_dir=os.curdir,
download_delay=15
):
"""Automatically find/download setuptools and make it available on sys.path
`version` should be a valid setuptools version number that is available
as an egg for download under the `download_base` URL (which should end with
a '/'). `to_dir` is the directory where setuptools will be downloaded, if
it is not already available. If `download_delay` is specified, it should
be the number of seconds that will be paused before initiating a download,
should one be required. If an older version of setuptools is installed,
this routine will print a message to ``sys.stderr`` and raise SystemExit in
an attempt to abort the calling script.
"""
was_imported = 'pkg_resources' in sys.modules or 'setuptools' in sys.modules
def do_download():
egg = download_setuptools(version, download_base, to_dir, download_delay)
sys.path.insert(0, egg)
import setuptools; setuptools.bootstrap_install_from = egg
try:
import pkg_resources
except ImportError:
return do_download()
try:
pkg_resources.require("setuptools>="+version); return
except pkg_resources.VersionConflict, e:
if was_imported:
print >>sys.stderr, (
"The required version of setuptools (>=%s) is not available, and\n"
"can't be installed while this script is running. Please install\n"
" a more recent version first, using 'easy_install -U setuptools'."
"\n\n(Currently using %r)"
) % (version, e.args[0])
sys.exit(2)
else:
del pkg_resources, sys.modules['pkg_resources'] # reload ok
return do_download()
except pkg_resources.DistributionNotFound:
return do_download()
def download_setuptools(
version=DEFAULT_VERSION, download_base=DEFAULT_URL, to_dir=os.curdir,
delay = 15
):
"""Download setuptools from a specified location and return its filename
`version` should be a valid setuptools version number that is available
as an egg for download under the `download_base` URL (which should end
with a '/'). `to_dir` is the directory where the egg will be downloaded.
`delay` is the number of seconds to pause before an actual download attempt.
"""
import urllib2, shutil
egg_name = "setuptools-%s-py%s.egg" % (version,sys.version[:3])
url = download_base + egg_name
saveto = os.path.join(to_dir, egg_name)
src = dst = None
if not os.path.exists(saveto): # Avoid repeated downloads
try:
from distutils import log
if delay:
log.warn("""
---------------------------------------------------------------------------
This script requires setuptools version %s to run (even to display
help). I will attempt to download it for you (from
%s), but
you may need to enable firewall access for this script first.
I will start the download in %d seconds.
(Note: if this machine does not have network access, please obtain the file
%s
and place it in this directory before rerunning this script.)
---------------------------------------------------------------------------""",
version, download_base, delay, url
); from time import sleep; sleep(delay)
log.warn("Downloading %s", url)
src = urllib2.urlopen(url)
# Read/write all in one block, so we don't create a corrupt file
# if the download is interrupted.
data = _validate_md5(egg_name, src.read())
dst = open(saveto,"wb"); dst.write(data)
finally:
if src: src.close()
if dst: dst.close()
return os.path.realpath(saveto)
def main(argv, version=DEFAULT_VERSION):
"""Install or upgrade setuptools and EasyInstall"""
try:
import setuptools
except ImportError:
egg = None
try:
egg = download_setuptools(version, delay=0)
sys.path.insert(0,egg)
from setuptools.command.easy_install import main
return main(list(argv)+[egg]) # we're done here
finally:
if egg and os.path.exists(egg):
os.unlink(egg)
else:
if setuptools.__version__ == '0.0.1':
print >>sys.stderr, (
"You have an obsolete version of setuptools installed. Please\n"
"remove it from your system entirely before rerunning this script."
)
sys.exit(2)
req = "setuptools>="+version
import pkg_resources
try:
pkg_resources.require(req)
except pkg_resources.VersionConflict:
try:
from setuptools.command.easy_install import main
except ImportError:
from easy_install import main
main(list(argv)+[download_setuptools(delay=0)])
sys.exit(0) # try to force an exit
else:
if argv:
from setuptools.command.easy_install import main
main(argv)
else:
print "Setuptools version",version,"or greater has been installed."
print '(Run "ez_setup.py -U setuptools" to reinstall or upgrade.)'
def update_md5(filenames):
"""Update our built-in md5 registry"""
import re
for name in filenames:
base = os.path.basename(name)
f = open(name,'rb')
md5_data[base] = md5(f.read()).hexdigest()
f.close()
data = [" %r: %r,\n" % it for it in md5_data.items()]
data.sort()
repl = "".join(data)
import inspect
srcfile = inspect.getsourcefile(sys.modules[__name__])
f = open(srcfile, 'rb'); src = f.read(); f.close()
match = re.search("\nmd5_data = {\n([^}]+)}", src)
if not match:
print >>sys.stderr, "Internal error!"
sys.exit(2)
src = src[:match.start(1)] + repl + src[match.end(1):]
f = open(srcfile,'w')
f.write(src)
f.close()
if __name__=='__main__':
if len(sys.argv)>2 and sys.argv[1]=='--md5update':
update_md5(sys.argv[2:])
else:
main(sys.argv[1:])

49
setup.py 100644
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@ -0,0 +1,49 @@
# Copyright 2010 Bastian Bowe
#
# This file is part of JayDeBeApi.
# JayDeBeApi is free software: you can redistribute it and/or modify
# it under the terms of the GNU Lesser General Public License as
# published by the Free Software Foundation, either version 3 of the
# License, or (at your option) any later version.
#
# JayDeBeApi is distributed in the hope that it will be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
# Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public
# License along with JayDeBeApi. If not, see
# <http://www.gnu.org/licenses/>.
#
import ez_setup
ez_setup.use_setuptools()
from setuptools import setup, find_packages
print find_packages('src')
setup(
#basic package data
name = 'JayDeBeApi',
version = '0.1',
author = 'Bastian Bowe',
author_email = 'bastian.bowe@gmail.com',
license = 'GNU LGPL',
url='https://code.launchpad.net/jaydebeapi',
description=('A bridge from JDBC database drivers to Python DB-API.'),
long_description=file('README.rst').read(),
keywords = ('db api java jdbc bridge connect sql jpype jython'),
classifiers = [
'Development Status :: 3 - Alpha',
'Intended Audience :: Developers',
'License :: OSI Approved :: GNU Library or Lesser General Public License (LGPL)',
'Programming Language :: Java',
'Programming Language :: Python',
'Programming Language :: Python :: 2',
'Topic :: Database',
'Topic :: Software Development :: Libraries :: Java Libraries',
'Topic :: Software Development :: Libraries :: Python Modules',
],
packages=find_packages('src'),
package_dir={ '': 'src' },
)

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@ -0,0 +1,85 @@
# The default ``config.py``
def set_prefs(prefs):
"""This function is called before opening the project"""
# Specify which files and folders to ignore in the project.
# Changes to ignored resources are not added to the history and
# VCSs. Also they are not returned in `Project.get_files()`.
# Note that ``?`` and ``*`` match all characters but slashes.
# '*.pyc': matches 'test.pyc' and 'pkg/test.pyc'
# 'mod*.pyc': matches 'test/mod1.pyc' but not 'mod/1.pyc'
# '.svn': matches 'pkg/.svn' and all of its children
# 'build/*.o': matches 'build/lib.o' but not 'build/sub/lib.o'
# 'build//*.o': matches 'build/lib.o' and 'build/sub/lib.o'
prefs['ignored_resources'] = ['*.pyc', '*~', '.ropeproject',
'.hg', '.svn', '_svn', '.git']
# Specifies which files should be considered python files. It is
# useful when you have scripts inside your project. Only files
# ending with ``.py`` are considered to be python files by
# default.
#prefs['python_files'] = ['*.py']
# Custom source folders: By default rope searches the project
# for finding source folders (folders that should be searched
# for finding modules). You can add paths to that list. Note
# that rope guesses project source folders correctly most of the
# time; use this if you have any problems.
# The folders should be relative to project root and use '/' for
# separating folders regardless of the platform rope is running on.
# 'src/my_source_folder' for instance.
#prefs.add('source_folders', 'src')
# You can extend python path for looking up modules
#prefs.add('python_path', '~/python/')
# Should rope save object information or not.
prefs['save_objectdb'] = True
prefs['compress_objectdb'] = False
# If `True`, rope analyzes each module when it is being saved.
prefs['automatic_soa'] = True
# The depth of calls to follow in static object analysis
prefs['soa_followed_calls'] = 0
# If `False` when running modules or unit tests "dynamic object
# analysis" is turned off. This makes them much faster.
prefs['perform_doa'] = True
# Rope can check the validity of its object DB when running.
prefs['validate_objectdb'] = True
# How many undos to hold?
prefs['max_history_items'] = 32
# Shows whether to save history across sessions.
prefs['save_history'] = True
prefs['compress_history'] = False
# Set the number spaces used for indenting. According to
# :PEP:`8`, it is best to use 4 spaces. Since most of rope's
# unit-tests use 4 spaces it is more reliable, too.
prefs['indent_size'] = 4
# Builtin and c-extension modules that are allowed to be imported
# and inspected by rope.
prefs['extension_modules'] = []
# Add all standard c-extensions to extension_modules list.
prefs['import_dynload_stdmods'] = True
# If `True` modules with syntax errors are considered to be empty.
# The default value is `False`; When `False` syntax errors raise
# `rope.base.exceptions.ModuleSyntaxError` exception.
prefs['ignore_syntax_errors'] = False
# If `True`, rope ignores unresolvable imports. Otherwise, they
# appear in the importing namespace.
prefs['ignore_bad_imports'] = False
def project_opened(project):
"""This function is called after opening the project"""
# Do whatever you like here!

154
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Metadata-Version: 1.0
Name: JayDeBeApi
Version: 0.1
Summary: A bridge from JDBC database drivers to Python DB-API.
Home-page: https://code.launchpad.net/jaydebeapi
Author: Bastian Bowe
Author-email: bastian.bowe@gmail.com
License: GNU LGPL
Description: =====================================================================
JayDeBeApi - bridge from JDBC Database drivers to Python DB-API
=====================================================================
The JayDeBeApi library allows you to connect from Python code to
databases using Java `JDBC
<http://java.sun.com/products/jdbc/overview.html>`_. It provides a
Python DB-API_ v2.0 to that database.
It works on ordinary Python (cPython) using the JPype_ Java
integration or on `Jython <http://www.jython.org/>`_ to make use of
the Java JDBC driver.
It has been tested with `Hypersonic SQL (HSQLDB)
<http://hsqldb.org/>`_ and `IBM DB2
<http://www.ibm.com/software/data/db2/>`_ for z/OS.
In contrast to zxJDBC from the Jython project JayDeBeApi let's you
access a database with Jython AND Python with only minor code
modifications. JayDeBeApi's future goal is to provide a unique and
fast interface to different types of JDBC-Drivers through a flexible
plug-in mechanism.
.. contents::
Install
=======
You can get and install JayDeBeApi with `easy_install
<http://peak.telecommunity.com/DevCenter/EasyInstall>`_ ::
$ easy_install JayDeBeApi
If you want to install JayDeBeApi in Jython make sure to have
EasyInstall available for it.
Or you can get a copy of the source branch using `bzr
<http://bazaar.canonical.com/>`_ by running ::
$ bzr branch lp:jaydebeapi
and install it with ::
$ python setup.py install
or if you are using Jython use ::
$ jython setup.py install
It has been tested with Jython 2.5.2.
If you are using cPython ensure that you have installed JPype_
properly. It has been tested with JPype 0.5.4.
Usage
=====
Basically you just import the ``jaydebeapi`` Python module and execute
the ``connect`` method. This gives you a DB-API_ conform connection to
the database.
The first argument to ``connect`` is the name of the Java driver
class. The rest of the arguments are internally passed to the Java
``DriverManager.getConnection`` method. See the Javadoc of
``DriverManager`` class for details.
Here is an example:
>>> import jaydebeapi
>>> conn = jaydebeapi.connect('org.hsqldb.jdbcDriver',
... 'jdbc:hsqldb:mem', 'SA', '')
>>> curs = conn.cursor()
>>> curs.execute('create table CUSTOMER'
... '("CUST_ID" INTEGER not null,'
... ' "NAME" VARCHAR not null,'
... ' primary key ("CUST_ID"))'
... )
>>> curs.execute("insert into CUSTOMER values (1, 'John')")
>>> curs.execute("select * from CUSTOMER")
>>> curs.fetchall()
[(1, u'John')]
You probably have to configure Jython or JPype to actually be able to
access the database driver's jar files. If I want to connect to a HSQL
in memory database on my Ubuntu machine I'm starting Python by running ::
$ JAVA_HOME=/usr/lib/jvm/java-6-openjdk python
Now I have to configure JPype
>>> jar = '/path/to/my/driver/hsqldb.jar'
>>> args='-Djava.class.path=%s' % jar
>>> jpype.startJVM(jvm_path, args)
or in Jython I have to
>>> jar = '/path/to/my/driver/hsqldb.jar'
>>> import sys
>>> sys.path.append(jar)
Contributing
============
Please submit `bugs and patches
<https://bugs.launchpad.net/jaydebeapi>`_. All contributors will be
acknowledged. Thanks!
License
=======
JayDeBeApi is released under the GNU Lesser General Public license
(LGPL). See the file ``COPYING`` and ``COPYING.LESSER`` in the
distribution for details.
Changelog
=========
- 0.1
- Initial release
To do
=====
- Extract Java calls to seperate Java methods to increase performance.
- Check if https://code.launchpad.net/dbapi-compliance can help making
JayDeBeApi more DB-API complient.
- Test it on different databases and provide a flexible db specific
pluign mechanism.
- SQLAlchemy modules (seperate project)
.. _DB-API: http://www.python.org/dev/peps/pep-0249/
.. _JPype: http://jpype.sourceforge.net/
Keywords: db api java jdbc bridge connect sql jpype jython
Platform: UNKNOWN
Classifier: Development Status :: 3 - Alpha
Classifier: Intended Audience :: Developers
Classifier: License :: OSI Approved :: GNU Library or Lesser General Public License (LGPL)
Classifier: Programming Language :: Java
Classifier: Programming Language :: Python
Classifier: Programming Language :: Python :: 2
Classifier: Topic :: Database
Classifier: Topic :: Software Development :: Libraries :: Java Libraries
Classifier: Topic :: Software Development :: Libraries :: Python Modules

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src/JayDeBeApi.egg-info/SOURCES.txt 100644
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setup.py
src/JayDeBeApi.egg-info/PKG-INFO
src/JayDeBeApi.egg-info/SOURCES.txt
src/JayDeBeApi.egg-info/dependency_links.txt
src/JayDeBeApi.egg-info/top_level.txt
src/jaydebeapi/__init__.py
src/jaydebeapi/dbapi2.py

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1
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jaydebeapi

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src/jaydebeapi/__init__.py 100644
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from dbapi2 import *

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src/jaydebeapi/dbapi2.py 100644
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#-*- coding: utf-8 -*-
# Copyright 2010 Bastian Bowe
#
# This file is part of JayDeBeApi.
# JayDeBeApi is free software: you can redistribute it and/or modify
# it under the terms of the GNU Lesser General Public License as
# published by the Free Software Foundation, either version 3 of the
# License, or (at your option) any later version.
#
# JayDeBeApi is distributed in the hope that it will be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
# Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public
# License along with JayDeBeApi. If not, see
# <http://www.gnu.org/licenses/>.
import datetime
import exceptions
import time
import sys
_jdbc_connect = None
def _jdbc_connect_jython(jclassname, *args):
# register driver for DriverManager
__import__(jclassname)
from java.sql import DriverManager
return DriverManager.getConnection(*args)
def _prepare_jython():
global _jdbc_connect
_jdbc_connect = _jdbc_connect_jython
# TODO: find solution for jython
# Binary = buffer
def _jdbc_connect_jpype(jclassname, *args):
import jpype
if not jpype.isJVMStarted():
jpype.startJVM(jpype.getDefaultJVMPath())
if not jpype.isThreadAttachedToJVM():
jpype.attachThreadToJVM()
# register driver for DriverManager
jpype.JClass(jclassname)
return jpype.java.sql.DriverManager.getConnection(*args)
def _prepare_jpype():
global _jdbc_connect
_jdbc_connect = _jdbc_connect_jpype
# TODO: doesn't work for Jython
# global Binary
# Binary = buffer
if sys.platform.lower().startswith('java'):
_prepare_jython()
else:
_prepare_jpype()
apilevel = '2.0'
threadsafety = 1
paramstyle = 'qmark'
class DBAPITypeObject(object):
def __init__(self,*values):
self.values = values
def __cmp__(self,other):
if other in self.values:
return 0
if other < self.values:
return 1
else:
return -1
STRING = DBAPITypeObject("CHARACTER", "CHAR", "VARCHAR",
"CHARACTER VARYING", "CHAR VARYING", "STRING",)
TEXT = DBAPITypeObject("CLOB", "CHARACTER LARGE OBJECT",
"CHAR LARGE OBJECT", "XML",)
BINARY = DBAPITypeObject("BLOB", "BINARY LARGE OBJECT",)
NUMBER = DBAPITypeObject("INTEGER", "INT", "SMALLINT", "BIGINT",)
FLOAT = DBAPITypeObject("FLOAT", "REAL", "DOUBLE", "DECFLOAT")
DECIMAL = DBAPITypeObject("DECIMAL", "DEC", "NUMERIC", "NUM",)
DATE = DBAPITypeObject("DATE",)
TIME = DBAPITypeObject("TIME",)
DATETIME = DBAPITypeObject("TIMESTAMP",)
ROWID = DBAPITypeObject(())
# DB-API 2.0 Module Interface Exceptions
class Error(exceptions.StandardError):
pass
class Warning(exceptions.StandardError):
pass
class InterfaceError(Error):
pass
class DatabaseError(Error):
pass
class InternalError(DatabaseError):
pass
class OperationalError(DatabaseError):
pass
class ProgrammingError(DatabaseError):
pass
class IntegrityError(DatabaseError):
pass
class DataError(DatabaseError):
pass
class NotSupportedError(DatabaseError):
pass
# DB-API 2.0 Type Objects and Constructors
Date = datetime.date
Time = datetime.time
Timestamp = datetime.datetime
def DateFromTicks(ticks):
return apply(Date, time.localtime(ticks)[:3])
def TimeFromTicks(ticks):
return apply(Time, time.localtime(ticks)[3:6])
def TimestampFromTicks(ticks):
return apply(Timestamp, time.localtime(ticks)[:6])
# DB-API 2.0 Module Interface connect constructor
def connect(jclassname, *args):
jconn = _jdbc_connect(jclassname, *args)
return Connection(jconn)
# DB-API 2.0 Connection Object
class Connection(object):
jconn = None
def __init__(self, jconn):
self.jconn = jconn
def close(self):
self.jconn.close()
def commit(self):
return self.jconn.commit()
def rollback(self):
return self.jconn.rollback()
def cursor(self):
return Cursor(self)
# DB-API 2.0 Cursor Object
class Cursor(object):
rowcount = -1
_meta = None
_prep = None
_rs = None
_description = None
def __init__(self, connection):
self._connection = connection
@property
def description(self):
if self._description:
return self._description
m = self._meta
if m:
count = m.getColumnCount()
self._description = []
for col in range(1, count + 1):
size = m.getColumnDisplaySize(col)
col_desc = ( m.getColumnName(col),
m.getColumnTypeName(col),
size,
size,
m.getPrecision(col),
m.getScale(col),
m.isNullable(col),
)
self._description.append(col_desc)
return self._description
# optional callproc(self, procname, *parameters) unsupported
def close(self):
self._close_last()
self.connection = None
def _close_last(self):
"""Close the resultset and reset collected meta data.
"""
if self._rs:
self._rs.close()
if self._prep:
self._prep.close()
self._rs = None
self._meta = None
self._description = None
def _set_stmt_parms(self, prep_stmt, *parameters):
for i in range(len(parameters)):
sqltype = TYPE_MAP[type(parameters[i])]
setter = getattr(prep_stmt, 'set%s' % METHOD_MAP[sqltype])
setter(i + 1, parameters[i])
def execute(self, operation, *parameters):
self._close_last()
self._prep = self._connection.jconn.prepareStatement(operation)
self._set_stmt_parms(self._prep, *parameters)
is_rs = self._prep.execute()
self.update_count = self._prep.getUpdateCount()
if is_rs:
self._rs = self._prep.getResultSet()
self._meta = self._rs.getMetaData()
# self._prep.getWarnings() ???
def executemany(self, operation, seq_of_parameters):
self._close_last()
self._prep = self._connection.jconn.prepareStatement(operation)
for parameters in seq_of_parameters:
self._set_stmt_parms(self._prep, *parameters)
self._prep.addBatch()
update_counts = self._prep.executeBatch()
# self._prep.getWarnings() ???
self.rowcount = sum(update_counts)
def fetchone(self):
#raise if not rs
if not self._rs.next():
return None
row = []
for col in range(1, self._meta.getColumnCount() + 1):
sqltype = self._meta.getColumnType(col)
getter = getattr(self._rs, 'get%s' % METHOD_MAP[sqltype])
v = getter(col)
converter = TO_PY_MAP.get(sqltype)
if converter:
v = converter(v)
row.append(v)
return tuple(row)
def fetchmany(self, size=None):
if size is None:
size = self.arraysize
self._rs.setFetchSize(size)
rows = []
row = None
for i in xrange(size):
row = self.fetchone()
if row is None:
break
else:
rows.append(row)
# reset fetch size
if row:
self._rs.setFetchSize(0)
return rows
def fetchall(self):
rows = []
while True:
row = self.fetchone()
if row is None:
break
else:
rows.append(row)
return rows
# optional nextset() unsupported
arraysize = 1
def setinputsizes(self, sizes):
pass
def setoutputsize(self, size, column):
pass
class JavaSqlTypes(object):
# from java.sql.Types
ARRAY=2003
BIGINT=-5
BINARY=-2
BIT=-7
BLOB=2004
BOOLEAN=16
CHAR=1
CLOB=2005
DATALINK=70
DATE=91
DECIMAL=3
DISTINCT=2001
DOUBLE=8
FLOAT=6
INTEGER=4
JAVA_OBJECT=2000
LONGVARBINARY=-4
LONGVARCHAR=-1
NULL=0
NUMERIC=2
OTHER=1111
REAL=7
REF=2006
SMALLINT=5
STRUCT=2002
TIME=92
TIMESTAMP=93
TINYINT=-6
VARBINARY=-3
VARCHAR=12
METHOD_MAP = {
JavaSqlTypes.ARRAY: 'Array',
#AsciiStream
JavaSqlTypes.NUMERIC: 'BigDecimal',
JavaSqlTypes.DECIMAL: 'BigDecimal',
#BinaryStream
JavaSqlTypes.BLOB: 'Blob',
JavaSqlTypes.BOOLEAN: 'Boolean',
JavaSqlTypes.CHAR: 'String',
JavaSqlTypes.BINARY: 'Bytes',
#CharacterStream
JavaSqlTypes.CLOB: 'Clob',
JavaSqlTypes.DOUBLE: 'Double',
JavaSqlTypes.DATE: 'Date',
JavaSqlTypes.FLOAT: 'Float',
JavaSqlTypes.INTEGER: 'Int',
JavaSqlTypes.BIGINT: 'Long',
JavaSqlTypes.SMALLINT: 'Short',
JavaSqlTypes.VARCHAR: 'String',
JavaSqlTypes.TIME: 'Time',
JavaSqlTypes.TIMESTAMP: 'Timestamp',
JavaSqlTypes.NULL: 'Null',
}
TYPE_MAP = {
int: JavaSqlTypes.INTEGER,
long: JavaSqlTypes.BIGINT,
float: JavaSqlTypes.DOUBLE,
type(None): JavaSqlTypes.NULL,
str: JavaSqlTypes.VARCHAR,
bool: JavaSqlTypes.BOOLEAN,
# buffer: JavaSqlTypes.BINARY,
unicode: JavaSqlTypes.VARCHAR,
}
def to_datetime(java_val):
# d=datetime.datetime.strptime(timestmp.toString()[:-7], "%Y-%m-%d %H:%M:%S")
# return d.replace(microsecond=int(str(timestmp.getNanos())[:6]))
return java_val.toString()
def to_date(java_val):
# d=datetime.datetime.strptime(timestmp.toString()[:-7], "%Y-%m-%d %H:%M:%S")
# return d.replace(microsecond=int(str(timestmp.getNanos())[:6]))
return java_val.toString()
def to_float(java_val):
return java_val.doubleValue()
TO_PY_MAP = {
JavaSqlTypes.TIMESTAMP: to_datetime,
JavaSqlTypes.DATE: to_date,
JavaSqlTypes.DECIMAL: to_float,
JavaSqlTypes.NUMERIC: to_float,
}

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create table konto (
"KONTO_ID" TIMESTAMP default CURRENT_TIMESTAMP not null,
"KONTO_NR" INTEGER not null,
"SALDO" DECIMAL default 0.0 not null,
primary key ("KONTO_ID")
);

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src/test/data/insert.sql 100644
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insert into Konto values ('2009-09-10 14:15:22.123456', 18, 12.4);
insert into Konto values ('2009-09-11 14:15:22.123456', 19, 12.9);

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src/test/integration_test.py 100644
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#-*- coding: utf-8 -*-
# Copyright 2010 Bastian Bowe
#
# This file is part of JayDeBeApi.
# JayDeBeApi is free software: you can redistribute it and/or modify
# it under the terms of the GNU Lesser General Public License as
# published by the Free Software Foundation, either version 3 of the
# License, or (at your option) any later version.
#
# JayDeBeApi is distributed in the hope that it will be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
# Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public
# License along with JayDeBeApi. If not, see
# <http://www.gnu.org/licenses/>.
import os
from unittest import TestCase
import jaydebeapi
import sys
this_dir = os.path.dirname(os.path.abspath(__file__))
jar_dir = os.path.abspath(os.path.join(this_dir, '..', '..',
'build', 'lib'))
create_sql = os.path.join(this_dir, 'data', 'create.sql')
insert_sql = os.path.join(this_dir, 'data', 'insert.sql')
def is_jython():
return sys.platform.lower().startswith('java')
class IntegrationTest(TestCase):
def sql_file(self, filename):
f = open(filename, 'r')
try:
lines = f.readlines()
finally:
f.close()
stmt = []
stmts = []
for i in lines:
stmt.append(i)
if ";" in i:
stmts.append(" ".join(stmt))
stmt = []
cursor = self.conn.cursor()
for i in stmts:
cursor.execute(i)
def setup_jpype(self, jars):
import jpype
if not jpype.isJVMStarted():
jvm_path = jpype.getDefaultJVMPath()
#jvm_path = ('/usr/lib/jvm/java-6-openjdk'
# '/jre/lib/i386/client/libjvm.so')
args='-Djava.class.path=%s' % jars
jpype.startJVM(jvm_path, args)
if not jpype.isThreadAttachedToJVM():
jpype.attachThreadToJVM()
def setUp(self):
# TODO support more than one jar
#jars='/usr/share/java/hsqldb.jar'
jars=os.path.join(jar_dir, 'hsqldb.jar')
#jars=jars_path(r'C:\Programme\DbVisualizer-4.3.5\jdbc')
if is_jython():
sys.path.append(jars)
else:
self.setup_jpype(jars)
self.conn = jaydebeapi.connect('org.hsqldb.jdbcDriver',
'jdbc:hsqldb:mem', 'SA', '')
#conn = jaydebeapi.connect('com.ibm.db2.jcc.DB2Driver',
# 'jdbc:db2://4.100.73.81:50000/db2t',
# getpass.getuser(), getpass.getpass())
self.sql_file(create_sql)
self.sql_file(insert_sql)
def tearDown(self):
cursor = self.conn.cursor()
cursor.execute("drop table konto");
self.conn.close()
def test_execute_and_fetch_no_data(self):
cursor = self.conn.cursor()
stmt = "select * from konto where konto_id is null"
cursor.execute(stmt)
assert [] == cursor.fetchall()
def test_execute_and_fetch(self):
cursor = self.conn.cursor()
cursor.execute("select * from konto")
result = cursor.fetchall()
assert [(u'2009-09-10 14:15:22.123456', 18, 12.4),
(u'2009-09-11 14:15:22.123456', 19, 12.9)] == result
def test_execute_and_fetch_parameter(self):
cursor = self.conn.cursor()
cursor.execute("select * from konto where konto_nr = ?", 18)
result = cursor.fetchall()
assert [(u'2009-09-10 14:15:22.123456', 18, 12.4)] == result
def test_execute_and_fetchone(self):
cursor = self.conn.cursor()
cursor.execute("select * from konto order by konto_nr")
result = cursor.fetchone()
assert (u'2009-09-10 14:15:22.123456', 18, 12.4) == result
def test_execute_reset_description_without_execute_result(self):
"""Excpect the descriptions property being reset when no query
has been made via execute method.
"""
cursor = self.conn.cursor()
cursor.execute("select * from konto")
assert None != cursor.description
cursor.fetchone()
cursor.execute("delete from konto")
assert None == cursor.description
def test_execute_and_fetchone_after_end(self):
cursor = self.conn.cursor()
cursor.execute("select * from konto where konto_nr = ?", 18)
cursor.fetchone()
result = cursor.fetchone()
assert None is result
def test_execute_and_fetchmany(self):
cursor = self.conn.cursor()
cursor.execute("select * from konto order by konto_nr")
result = cursor.fetchmany()
assert [(u'2009-09-10 14:15:22.123456', 18, 12.4)] == result
def test_executemany(self):
cursor = self.conn.cursor()
stmt = "insert into Konto (KONTO_ID, KONTO_NR, SALDO) values (?, ?, ?)"
parms = (
( '2009-09-11 14:15:22.123450', 20, 13.1 ),
( '2009-09-11 14:15:22.123451', 21, 13.2 ),
( '2009-09-11 14:15:22.123452', 22, 13.3 ),
)
cursor.executemany(stmt, parms)
assert cursor.rowcount == 3