I might be missing the purpose of your factory, but maybe you can just
implement it like this:
function PluginFactory() {
//
}
exports.PluginFactory = new PluginFactory();
As long as you don't mess with the require cache, I think that would
effectively be a singleton. Maybe there are other reasons to implement the
singleton like you did though.
-Bryan
On Tuesday, March 25, 2014 6:50:27 AM UTC-6, [email protected] wrote:
>
> Hi,
>
> So i'm having problems with my architecture of my node application, I know
> the problem, I'm just trying to find the best solution.
>
> My problems is exactly the same as:
> https://groups.google.com/forum/#!topic/nodejs/u_9IE2z_6rM
>
> Only I'm using a Factory class to create plugins of the type "IPlugin".
> These plugins have certain actions, called PluginAction.
>
> A PluginAction has a field plugin, which refers to its parent plugin. When
> serializing to JSON, i replace the plugin object with a string identifier,
> pointing to the correct plugin.
>
> My PluginFactory can retrieve a plugin using retrieve(identifier). The
> problem occurs when I try to deserialize a given PluginAction.
>
> At that point I would like to convert the plugin identifier back to the
> plugin object, by retrieving it from the Factory. This is where it goes
> wrong.
>
> I understand this could be a bit hard to follow, so I've included a part
> of my class diagram, which might clarify it more. Short summary:
>
>
> 1. PluginFactory.initialize() loads all plugins in a certain directory
> using require()
> 2. PluginAction.toJSON() changes the plugin object to a string
> containing the plugin identifier
> 3. PluginAction.fromJSON() when trying to retrieve the plugin object
> using the PluginFactory, I cannot load the PluginFactory file.
>
>
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