'Retrieve an entity from me.
I will first attempt to retrieve an entity statically; static entities
will obscure dynamic ones.  If that fails, I will retrieve the entity
dynamically.
If I cannot retrieve an entity, I will return \'None\'.'

def getEntity(self, name, request):

    ent = self.getStaticEntity(name)
    if (ent is not None):
        return ent
    ent = self.getDynamicEntity(name, request)
    if (ent is not None):
        return ent
    return None
