Ideas for the zf2 instance manager

instance-manager-ideas.php

<?php

// Use case 1:
// Providing additional constructor arguments

$im->composeService('foo', $myservice);

class MyService extends ComposedServiceFactory
{
    public function __invoke($im, $name)
    {
        // Add constructor args:
        // Assume that annotation manager is an optional constructor argument 
        // usually
        $annotationManager = $im->get('AnnotationManager');
        $serviceFactory    = $im->getFactory($name);
        $serviceFactory->setAnnotationManager($annotationManager);

        // Return the factory, indicating we have not yet instantiated the service
        return $serviceFactory;
    }
}

// Use case 2: manipulating the instance after it's been retrieved

$im->processService('AggregateResolver', $yourService);

class YourService implements ServiceFactoryProcessor
{
    public function __invoke($im, $name)
    {
        // Let's add a resolver to the stack
        $myResolver = new MyResolver();

        // which means we need the instance
        $service = $im->get($name);

        $service->add($myResolver);

        // Return the service, indicating we're working on the instance
        return $service;
    }
}