Which mapping type to choose for associative Arrays? Doctrine ODM

Question

I have a simple question about the (by the way really great!) Doctrine ODM.

Assume you have a document like:

/**
 * @Document
 */
class Test
{
    /** @I         


        

Answer 1

It should be the Hash type:

http://readthedocs.org/docs/doctrine-mongodb-odm/en/latest/reference/annotations-reference.html?highlight=hash#hash