Just joining with what Art said (he beat me to the answer, but I
figured I may as well add my 2c too).
In a "normal" setup, the client (be it a web client, or Java client)
talks to the WO application via HTTP (generally on port 80). This will
probably be passing through firewalls or other things. The WO
application then talks to the database using the JDBC standard to get
what it needs, then sends this information back to the client (over
HTTP).
Often the application and the database server will be running on the
same machine. There should be no firewalls or other hurdles between
these two things. The only challenge may be whether that HSQLDB Server
comes with a JDBC adapter to allow WO to communicate with it.
r.
On 29/06/2004, at 10:49, Baiss Eric Magnusson wrote:
I don't read from the documentation that I can, say change the way
EO's are fetched from a database from using the WebServer to using
<hsqldb's> proprietary communcations protocol.
HSQLDB Web Server
This mode is used when access to the computer hosting the database
server is restricted to the HTTP protocol. The only reason for using
the Web Server mode is restrictions imposed by firewalls on the client
or server machines and it should not be used where there are no such
restrictions. The HSQLDB Web Server is a special web server that
allows JDBC clients to connect via HTTP. As the HTTP protocol is
stateless, connections to a web server do not have a persistent
session. This limits the range of actions that can be performed on the
database. Each time you issue a JDBC command, it is treated as a new
connection to the database. As a result transactions cannot be rolled
back.
HSQLDB Server
This is the preferred way of running a database server and the fastest
one. A proprietary communications protocol is used for this mode. A
command similar to those used for running tools and described above is
used for running the server.
Like I don't think I could usre the HSQLDB Server mode described in
their documentation.
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