Cloning a DefaultTableModel

The only problem with that is it is very inefficient. With the tableModel, I'd have to loop through the rows AND columns.This is a task that has to be done everytime the table is referenced by the user - which is quite often - and it's a big table with a lot of columns, so a loop for this would cause severe lag.

I was hoping for a good utility.

JacobsBa at 2007-7-12 18:56:35 >

If you want a deep clone,

you can either clone each of the instance variables inside the object

or try cloning using serialization provided all the objects implememnt Serializable

ByteArrayOutputStream baos = new ByteArrayOutputStream();

ObjectOutputStream oos = new ObjectOutputStream(baos);

oos.writeObject(this);

ByteArrayInputStream bais = new ByteArrayInputStream(baos.toByteArray());

ObjectInputStream ois = new ObjectInputStream(bais);

Object deepCopy = ois.readObject();

watfora at 2007-7-12 18:56:35 >

> Haven't tried it, but can't you put the same model

> into 2 tables?

no because i want to copy the tableModel. the table model is what contains my cell values. i want to keep a copy so that i can add and subtract rows from the tableModel, then if the user hits Cancel, use the copy to revert it.

JacobsBa at 2007-7-12 18:56:35 >