update on Grails Neo4j GORM plugin
The milestone release 1.0.0.M2 of the Neo4j Grails GORM plugin was published a couple of days ago. The plugin provides a GORM compliant implementation backed by a Neo4j datastore. This means you can switch any Grails application to use Neo4j by simply exchanging the GORM plugin used.
Plugin documentation can be found at http://springsource.github.com/grails-data-mapping/neo4j/manual/index.html. There is also a very minimal demo application available at http://neo4j-grails-demo.herokuapp.com/, see https://github.com/sarmbruster/neo4jsample for the source code. The demo app consists of three trivial domain classes with scaffolding controllers – nothing more for now.
Since there is currently the Neo4j Challange in progress, I’ve decided to participate there. As already stated the neo4jsample demo application is very minimal but it its intention is to serve as a starting point for your own Grails application using Neo4j as datastore backend. If you want support this project in the neo4j challenge, please send a tweet.
When Grails has the Neo4j plugin installed, does that mean that the app would have both MySql and Neo4j accessible, or is it more a question of choosing Neo4j as the backend and sticking with it? I am exploring web frameworks that integrate/use Neo4j and Grails is a leading candidate, but before I test various installations, I wanted to get a few basic questions answered and have a better idea how the data would be modeled.
Thanks.
GORM supports multiple backends in one application. You have to use @MapsWith on the domain classes to indicate, where data should be stored.
Stefan,
Is there a plan to do a release version of this plugin? Also can you point out where is the code hosted for this plugin as the link on grails plugin page seems to be broken.
Thanks
Hi Amad, yes there will be a new release soon, I was busy with other stuff the last weeks. Please find the sources at https://github.com/SpringSource/grails-data-mapping