Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]

Groups > comp.lang.java.programmer > #38593

Displaying a ragged array

Show all headers | View raw

I'm in the process of creating a desktop application to display and edit
data that's best treated as a ragged array of Strings: it is quite
unlikely that all rows in the array will be the same length.

I've built and debugged a Datastore class to hold it as an ArrayList of
ArrayList<String>  - the ArrayList<String> being in a wrapper class
representing a row of fields. The DataStore allows rows, columns and
individual fields to be inserted, deleted, and the fields to be modified.

Datastore extends AbstractTableModel because I was initially intending to
use a JTable to display and manipulate its contents, but now its
successfully manipulating the ragged array I'm having twinges of doubt
about how whether a JTable can is the best way of displaying it and
allowing it to be viewed and modified, i.e. can a JTable deal successfully
with the missing elements at the end of rows in a ragged array?

Would I be better off with a custom built structure containing, say, an
array of JButtons to display fields in the ragged array and that can be
clicked to add a field, edit or delete it?

I'll be very interested to hear how you've handled, or would handle, this
display problem.




-- 
Martin    | martin at
Gregorie  | gregorie dot org

Back to comp.lang.java.programmer | Previous | Next — Next in thread | Find similar | Unroll thread

Thread

Displaying a ragged array Martin Gregorie <martin@mydomain.invalid> - 2018-09-16 22:17 +0000
  Re: Displaying a ragged array Daniele Futtorovic <da.futt.news@laposte-dot-net.invalid> - 2018-09-17 16:00 +0200
    Re: Displaying a ragged array Martin Gregorie <martin@mydomain.invalid> - 2018-09-17 19:32 +0000
      Re: Displaying a ragged array Daniele Futtorovic <da.futt.news@laposte-dot-net.invalid> - 2018-09-17 23:29 +0200
        Re: Displaying a ragged array Martin Gregorie <martin@mydomain.invalid> - 2018-09-17 23:43 +0000
          Re: Displaying a ragged array Daniele Futtorovic <da.futt.news@laposte-dot-net.invalid> - 2018-09-19 18:12 +0200
            Re: Displaying a ragged array Martin Gregorie <martin@mydomain.invalid> - 2018-09-19 17:49 +0000
              Re: Displaying a ragged array Eric Sosman <esosman@comcast-dot-net.invalid> - 2018-09-19 14:25 -0400
                Re: Displaying a ragged array Martin Gregorie <martin@mydomain.invalid> - 2018-09-19 19:29 +0000
                Re: Displaying a ragged array Daniele Futtorovic <da.futt.news@laposte-dot-net.invalid> - 2018-09-20 15:30 +0200
                Re: Displaying a ragged array Martin Gregorie <martin@mydomain.invalid> - 2018-09-20 15:06 +0000
              Re: Displaying a ragged array Eric Douglas <e.d.programmer@gmail.com> - 2018-09-24 08:11 -0700
                Re: Displaying a ragged array Martin Gregorie <martin@mydomain.invalid> - 2018-09-24 17:52 +0000
                Re: Displaying a ragged array Eric Douglas <e.d.programmer@gmail.com> - 2018-09-24 12:01 -0700
                Re: Displaying a ragged array Martin Gregorie <martin@mydomain.invalid> - 2018-10-23 21:00 +0000
  Re: Displaying a ragged array Eric Sosman <esosman@comcast-dot-net.invalid> - 2018-09-17 10:17 -0400
    Re: Displaying a ragged array Martin Gregorie <martin@mydomain.invalid> - 2018-09-17 19:46 +0000
      Re: Displaying a ragged array Martin Gregorie <martin@mydomain.invalid> - 2018-09-17 23:53 +0000

csiph-web