A base trait for creating and managing a mongoDB connection/collection

MongoRepository.scala

package com.agemooij.mongodb

import com.mongodb.casbah.Imports._

trait MongoRepository {
    protected val host = "localhost"
    protected val port = 27017
    protected val databaseName = "agemooij"
    
    protected val collectionName: String
    
    protected def afterCollectionInitialized(collection: MongoCollection) {}
    
    protected lazy val connection = MongoConnection(host, port)
    protected lazy val database = connection(databaseName)
    protected lazy val collection = {
        val col = database(collectionName)
        
        afterCollectionInitialized(col)
        
        col
    }
}