$PH\COOL-BDE\how2run_bde2java04fky

From lechner@cs.uml.edu Thu Sep 15 20:08:58 2005

From: Bob Lechner <lechner@cs.uml.edu>

Subject: http://www.cs.uml.edu/~lechner/04f522/kyang/bde2java/ --> run application

Cc: 05f523, kyang

is the URL to Kevin Yang's update of bde2java. You can choose 'Run Application' and get a

Security Warning; then if you say Yes it runs:

This opens a bde window and a popup option to work local or remotely.

Local requires username and passwd; remote requires these + host and port.

(Port 22 works).

You must use FILE menu before you can begin editing: select FILE/New or Open.

In either mode you have the ability to create or open files and print them.

You cannot work in both places at once or download/upload files.

Bugs may cause drawn objects to vanish. I don't know if save/reopen works then.

bde2java works after a fashion, while bde unix does not.

bde2java has a few limited features and inherited bugs. E.g.,

re-clicking to observe vanished text, multi-line text

may overwrite itself when moved, visible items disappear

after some operations, and Text Resize doesn't work;

Browsing is difficult - default path is wrong (not current path).

FILE Save-As and Open accept file.txt (which they are)

instead of file.dat (which WinXP likes to open as MSFiletype).

[However, my first test of local save/save-as

(to filebde2java04fTest050816.bde)

produced a html file beginning with

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Frameset//EN"

"http://www.w3.org/TR/html4/frameset.dtd">

and containing no bde diagram data, only menu.html and home.html frame refs.]

Nevertheless, bde2java04f is probably the most viable solution to producing bde drawings

(if they can be saved) at the present time. It should be possible to hand-edit its output .dat files

to append HA_lines that declare TA-fields of EERDs for updated testing of bde2SM.

Those interested in XML tree-like structuring of .dat files are invited to

consider especially using the compression technique illustrated at:

$PH/DataModels05fr1.ppt slides 63: Compression(Breadth-First)

(table-order) and 64:Compression (Depth-First)(tree-order)

in which HA-fkeys are automatically supplied by the expander.