Gist correspondant au blog Ippon traitant de https://github.com/ippontech/primefaces-groovy-cassandra

User.groovy

package fr.ippon.blog.primegroovy.domain

class User implements Serializable {
    String login
    String username
    String domain
    String firstName
    String lastName
}

UserController.groovy

package fr.ippon.blog.primegroovy.web

import fr.ippon.blog.primegroovy.domain.User
import fr.ippon.blog.primegroovy.repository.UserRepository

import javax.enterprise.context.RequestScoped
import javax.inject.Inject
import javax.inject.Named

@Named("userController")
@RequestScoped
class UserController implements Serializable {

    @Inject
    UserRepository userRepository

    Collection<User> getUsers() {
        return userRepository.users
    }
}

UserRepository.groovy

package fr.ippon.blog.primegroovy.repository

import fr.ippon.blog.primegroovy.domain.User
import me.prettyprint.cassandra.model.CqlQuery
import me.prettyprint.cassandra.serializers.StringSerializer
import me.prettyprint.cassandra.service.CassandraHostConfigurator
import me.prettyprint.cassandra.service.ThriftCluster
import me.prettyprint.hector.api.beans.Row
import me.prettyprint.hector.api.factory.HFactory

import javax.enterprise.context.ApplicationScoped

/**
 * Access to the Cassandra User CF.
 */
@ApplicationScoped
class UserRepository implements Serializable {

    def keyspace = HFactory.createKeyspace("tatami",
            new ThriftCluster("Tatami cluster",
                    new CassandraHostConfigurator("localhost")))

    Collection<User> getUsers() {
        def cqlQuery =
            new CqlQuery(keyspace, StringSerializer.get(), StringSerializer.get(), StringSerializer.get())

        def rows = cqlQuery.setQuery("SELECT * FROM User").execute().get()
        return rows.collect { Row row ->
            new User(
                    login: row.key,
                    username: row.columnSlice.getColumnByName("username").value,
                    domain: row.columnSlice.getColumnByName("domain").value,
                    firstName: row.columnSlice.getColumnByName("firstName").value,
                    lastName: row.columnSlice.getColumnByName("lastName").value
            )
        }
    }
}