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README.markdown

do_h2

Description

An H2 driver for DataObjects.

Features/Problems

This driver implements the DataObjects API for the H2 relational database. This driver is currently provided only for JRuby.

Synopsis

An example of usage:

@connection = DataObjects::Connection.new("h2://employees")
@reader = @connection.create_command('SELECT * FROM users').execute_reader
@reader.next!

The Connection constructor should be passed either a DataObjects-style URL or JDBC-style URL:

h2://employees
jdbc:h2:mem

Requirements

  • JRuby 1.3.1 + (1.4+ recommended)
  • data_objects gem
  • do_jdbc gem (shared library)

Install

To install the gem:

jruby -S gem install do_h2

To compile and install from source:

  • Install the Java Development Kit (provided if you are on a recent version of Mac OS X) from http://java.sun.com
  • Install a recent version of JRuby. Ensure jruby is in your PATH and/or you have configured the JRUBY_HOME environment variable to point to your JRuby installation.
  • Install data_objects and do_jdbc with jruby -S rake install.
  • Install this driver with jruby -S rake install.

For more information, see the H2 driver wiki page: http://wiki.github.com/datamapper/do/h2.

Developers

Follow the above installation instructions. Additionally, you'll need:

  • bacon gem for running specs.
  • YARD gem for generating documentation.

See the DataObjects wiki for more comprehensive information: http://wiki.github.com/datamapper/do/jruby.

To run specs:

jruby -S rake spec

To run specs without compiling extensions first:

jruby -S rake spec_no_compile

To run individual specs:

jruby -S rake spec TEST=spec/connection_spec.rb

(Note that the rake task uses a TEST parameter, not SPEC. This is because the Rake::TestTask is used for executing the Bacon specs).

License

This code is licensed under an MIT (X11) License. Please see the accompanying LICENSE file.

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