Forum:Set a monster considered a summon?

Alright, Say during my duel I summon a monster Ojama blue(http://yugioh.wikia.com/wiki/Ojama_Blue) from my hand into the field in face-down position. Then during my opponent's turn he revives Queen of Thorns(http://yugioh.wikia.com/wiki/Queen_of_Thorns)from the graveyard by using an effect of some plant monster. He then attacks my face-down defense position monster, it's flipped face up because of the attack. Will Queen of Thorns effect still count?

To be clear my question is, when you set a monster in face-down position then flip face-up by an attack is it considered to be a summon? Then will Queen of Thorns effect count?