Identify better Table widget

[paulvi]

There should be some new widget in Eclipse e4 for Table.

In broader sense this issue is about rewrite.

[digulla]

Why do you need a better table widget?

I think the main problem with the code right now is that it wants to fill in the data for every cell instead of using a lazy model where the table asks for cell data when it needs to render the cell.

[paulvi]

the main problem with the code right now is that it wants to fill in the data for every cell instead of using a lazy model

That's right. I remember a few years ago saw a project, that was making Table widget with aim to support big databases, where there are 10K-100K and more rows.

There is also no row numbers.

[digulla]

Example for a lazy TableViewer:
http://git.eclipse.org/c/platform/eclipse.platform.ui.git/tree/examples/org.eclipse.jface.snippets/Eclipse%20JFace%20Snippets/org/eclipse/jface/snippets/viewers/Snippet029VirtualTableViewer.java

and

http://git.eclipse.org/c/platform/eclipse.platform.ui.git/tree/examples/org.eclipse.jface.snippets/Eclipse%20JFace%20Snippets/org/eclipse/jface/snippets/viewers/Snippet030VirtualLazyTableViewer.java

If you're using an SWT Table: https://stackoverflow.com/questions/1726331/populating-huge-table-in-swt-jface-rcp-application

To add row numbers, you need to insert a column and supply your own cell renderer. That allows you to render it in a different style.

One of the problems is that the table API has no efficient way to get the row number. The most simple code looks like this:

column.setLabelProvider(new ColumnLabelProvider() { 
    public void update(ViewerCell cell) { 
        cell.setText(table.indexOf((TableItem)cell.getItem())+"") 
    } 
}); 

table.indexOf() is pretty expensive but the UI will remember the values, so it will just be called once per table row.

You may also consider to use a Tree instead of a Table to display the data since Tree supports filtering. See https://eclipsesource.com/blogs/2012/10/26/filtering-tables-in-swtjface/