Grid methods not found ?

Hi everyone!

I’m using Vaadin 8.0.5, and I need build a generic Grid (I don’t have POJO for this querys), based in generic made by hand SQL.
I need use some methods used in examples, but these methods doesn’t exist in my Grid object, like :

grid.addColumn(“name”, String.class);
grid.addRow(“Nicolaus Copernicus”, 1543);

What´s happen ? Someone have an example with Grid and JDBC resultDataSet, using resultMetaData of fields ?