return the next row in the ResultSet as a model instance,if it is the last row it will return false.
next:function()
a function to iterate the ResultSet like ruby each.
each:function( fn, bind )
close the ResultSet,this will be done automaticlly if the ResultSet is iterated to the end.
close:function()
return the first row of the ResultSet,will return false if the ResultSet is empty.
getOne:function()
return the ResultSet as Array of model instances
toArray:function()