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Re: [udig-devel] Re: DB2 and Oracle support
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David Adler wrote:
So I plan to try out this idea, making the "unfriendly" databases
like oracle and db2 only available via an update site. This buys me
two things:
- uDig is not downloaded with things that cannot work out of the box
- when installing a "Feature" from an updateSite I can customize the
install wizard to include a page that tells the users where the
jdbc-driver can be downloaded from, and lets them point the wizard at
to the downloaded driver.
Jody, what are you planning? It isn't clear what type of wizard you
are suggesting.
Sorry it was not clear. In a sense I am "still" planning as I am trying
to figure out update sites and how I am supposed to solve this problem.
I was going to try it out on Oracle and then ask you what you thought.
I'm not sure how "unfriendly" DB2 and Oracle actually are in regards
to the JDBC drivers. If you have the product installed, it contains
the JDBC drivers and you are guaranteed to have the right level.
Fair enough, lets just say that workflow is a bit difficult for the open
source development model (witness the inclusion of a mock oracle-jdbc
driver with uDig so people can checkout and compile even when they do
not have the product).
It would seem to make sense to me to use the
DataStoreFactory.isAvailable() to check whether the data store can be
used before even adding the various databases to the selection list in
uDIG. At least in the case of DB2DataStoreFactory, this checks the
availability of the JDBC drivers.
Correct - that is the design and it will work.
Since uDIG is supposed to be "User-friendly", it seems it should be as
easy as possible to get it up and running for any data source.
True - and here is how I hope to do that. For Oracle and DB2 (where we
cannot include the jdbc driver) I need to find a way to let users point
me towards the jdbc driver they already have.
I can think of two ways to do this:
1. Through a Preference page - When the user points towards a new jdbc
driver, I would need to figure out how modify the classpath of the
already running plugin.
2. When the users goes to install the feature (if you download a nightly
build you can see a "Find and Install..." menu item in the help menu.
My impression is that option number 2 is what I am supposed to do. There
is also a manual process - ask the user to place the jdbc driver jar
into the correct plugin.
Jody
