Add an ObjectConstructor which can load an object from the database

[schmittjoh]

If someone wants to modify an object partially, he currently needs to write a class which implements ObjectConstructorInterface. Maybe we can provide an implementation by default.

class DoctrineObjectConstructor extends UnserializeObjectConstructor
{
    private $em;

    public function construct($metadata, $class, $data, $visitor) 
    {
        if ($this->em->isTransient($class)) {
            return parent::construct(/* ... */);
        }

        // do some query and return the object
    }
}

see #111

[robocoder]

Wouldn't the interface have to change so that the entity manager can be set before unserializing in the constructor?

[schmittjoh]

I think you are confusing construct with __construct.