* - writeFactory : ObjectFactory::getObjectFromSpec array yeilding BagOStuff.
* This object will be used for writes (e.g. the master DB).
* - readFactory : ObjectFactory::getObjectFromSpec array yeilding BagOStuff.
* - writeFactory : ObjectFactory::getObjectFromSpec array yeilding BagOStuff.
* This object will be used for writes (e.g. the master DB).
* - readFactory : ObjectFactory::getObjectFromSpec array yeilding BagOStuff.