Re: RegisterFactory vs. RegisterFactoryLocation

Christian Biesinger wrote:
> Doug Turner wrote:
> 
>> Christian Biesinger wrote:
>>
>>> Hello!
>>> What exactly is the difference between RegisterFactory and 
>>> RegisterFactoryLocation? What does the latter do that the former 
>>> doesn't?
>>
>>
>> One registers an instance of a nsIFactory.  The other registers a file 
>> location of a component.  See nsIComponentRegistrar.idl.
> 
> 
> OK...
> 
>>> Can I change existing code to use RegisterFactory instead of 
>>> RegisterFactoryLocation and will it still work?
>>
>>
>> Depends on exactly what you are trying to do.  Do you already have a 
>> nsIFactory?  If so, converting to registerFactoryLocation() doesn't 
>> make too much sense.
> 
> 
> No, no... Current code uses RegisterFactoryLocation. I would change the 
> way this code works and it would be easier for me to use RegisterFactory.
> 
> I don't necessarily have an nsIFactory, but I can get it easier than the 
> things I need for ...Location.
> 
> I'm more or less trying to make an existing component accessible with 
> another contract id (required by Mozilla architecture...).

You realized that RegisterFactory does not persist fom one run to 
the next, right? Do you really have a situation where you want to 
create a factory and register it on every run whether it is going 
to be needed or not?

John.

>