After I add decimal column to the table, extended from AbstractDecimalColumn, there is no intuitive way to figure out how should method "createDefaultEditor" look like. Any direction from anybody maybe ?
AbstractDecimalColumn is not intended to be subclassed directly, it is more like a container for common code. You should always subclass either AbstractIntegerColumn, AbstractBigDecimalColumn, AbstractLongColumn, AbstractBigIntegerColumn
(this should probably be mentioned that in the JavaDoc)