Introduction

Currently it is possible, though with a bit of effort, to utilize Gorm - complete with dynamic methods - independent (mostly) of  the rest of the Grails framework.

It is hoped this page can be used as a reference point from which we can eventually package and maintain Gorm externally from Grails.

Instructions

Download the gorm-<version>.zip ZIP attachment.

Unzip, look at the README.txt, have fun.

NEWS

 Updated to 0.5.6

TODO

Plenty.

Here's just a quick run-down of ideas; these will certainly need to be edited by those more knowledgeable.

• it should actually share code in a more generic fashion; which would be much better than needing to basically cut'n'paste stuff from all over with every new release of grails. Maybe a HibernateGormPlugin which could share code w/ HibernateGrailsPlugin and/or a lighter-weight version of AbstractGrailsPluginManager could be packaged up in a 'gorm-version.jar' ( vs. grails-gorm-version.jar ) along with the rest of the dependencies listed above.

• would seem better for it to read the domain classes from .../domain, or .../gorm/domain - rather than .../grails-app/domain as it does now. There should be no user-visible reference to grails.

• would be great if it was packaged in a similar manner to grails: with a few ant targets via gant and whatnot: i.e., gorm create-app, would create the necessary directory structure to get started, gorm run <arg> could run a specific script/class, gorm console/shell, gorm create-unit-test, etc. etc.

• the ultimate goal - if we could at some point have an official gorm package/jar that could be downloaded straight from grails.org or codehaus.org, which would be maintained along with the latest grails-gorm release.

BUGS

• the 'unique' constraint does not raise an error when the constraint is violated

Notes

The work done was orginally taken from the efforts of jweldin, who posted the original code on his blog a while back: http://jweldin.com/blog/?p=6

The README.txt

#0: you can start off with the test that's included, just do:

ant run -Drun=GormTest

Now for the instructions:

#1: modify ./hibernate.properties appropriately for your environment

#2: put your jdbc driver into ./lib

#3: put your gorm domain classes into ./grails-app/domain

#4: put the scripts you want to run into ./grails-app/scripts

#5: you have three ant targets: run, build, and clean

#6: execute the script you want with:

ant run -Drun=YourScript

Further Exploration: Java on GORM

John McClean has written a multi-part tutorial for taking advantage of GORM functionality from within Java.

1. Java on Grails
2. Java on Grails: Genesis
3. Java on Grails: Save the bean, save the world
4. Java on Grails: Update