GORM for MongoDB – Impressive

SpringSource announces today Grails Object Relational Mapping for MongoDB!

http://blog.springsource.com/2010/11/15/yet-another-flavour-of-gorm-mongodb/

For the people unfamiliar with MongoDB, it is a document oriented database that bridges the gap between key-value stores (which are fast and highly scalable) and traditional RDBMS systems (which provide rich queries and deep functionality).

We’ve been using MongoDB for a while already and have had a few discussions going around whether that’s the right choice, since we use Grails and develop in Groovy, and it appeared that the MongoDB Grails plug-in was immature and not recommended for production, on the other hand we could create the classes Grails domain classes and use [annotate] morphia to map Java/Groovy objects to/from MongoDB, but that would mean more work in the last stages of the sprint, which would put the sprint under a risk.

So, it appears that SpringSource have hidden microphones in our office, and the day we were discussing this issue, they came up with this nice news. [ In fairness to one of our colleagues, I need to tell that he suggested to wait for an update from SpringSource, which actually we are discussing right now ]

Anyways, let’s see what GORM for MongoDB offers:

• Full support for CRUD operations
  user.save(), user.delete()…
• Dynamic finders
  User.findAllByHeightGreaterThan(173)
• Complex Criteria queries
  def result = User.withCriteria{
  like('name', 'F%')
gt('age', 18)
  }
• Reusable Named Queries

Although many2many relationships are missing, it is great great step forward, and I am sure people using Grails together with MongoDB will appreciate a lot! Well done Guys.

All we need to do now, is to

1. remove the grails hibernate plug-in (if installed)
2. create the classes in the Grails domain class folder

Check the manual ( http://grails.github.com/inconsequential/mongo/manual/index.html ) for more information on the new arrival! And share comments with us if you use MongoDB with Grails!

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