var Q = require('q');
var mongo = require('mongodb'),
  Server = mongo.Server,
  Db = mongo.Db;

var server = new Server('localhost', 27017, {auto_reconnect: true});
var db_ = new Db('annotedw', server, {safe: true});

Q.ncall(db_.open, db_).then(
    function(db) {
        return Q.ncall(db.collection, db, 'corpus');
    }
)
.then(
    function(coll) {
        var cursor = coll.find();
        return cursor;
    }
)
.then(function(cursor) {
    cursor.each(function(err, item) {
        if(item != null) {
            console.log(item.name);
        } else {
            db_.close();
        }
    });
});