Re: [ve-dev] Classpath of target VM

[Rich Kulp <richkulp@xxxxxxxxxx>]

Hi,

There are two different possibilities
for you to force something to be at the front of the bootpath. One needs
to be done by each user for each project, the other can be used if you
are supplying extension code and a Classpath Container to the VE. The second
one is best if you are supplying it because then your users won't need
to do anything special.

For the user:

I haven't tried it specifically for
what you want, but we do have an option to create a Launch Configuration
for a project that will be used when the remote vm is launched.

To activate this you need to activate
the "Proxy Tools".

1. This is done through Window->Customize Perspective, select the "Commands" tab, search for "Proxy Tools" on the list on the left and select the check box and hit OK.
2. This adds a new "Run" icon to the toolbar. Its tooltip will say "Proxy Launch Manager". Click on the little dropdown arrow and select Proxy...
3. Select the "Local Proxy Application", and hit New to create a new one. You can then configure this for a particular project, and go to the "Classpath" tab and add your jar to the bootpath. Do Apply and close.
4. Select the project, bring up popup menu, select "Configure Default Proxy Configuration..." and select the checkbox for the launch configuration and hit OK.

It will now use this launch configuration
for this project.

For the Classpath Container:

You will need to have read  http://eclipse.org/articles/Article-VE-Custom-Widget/customwidget.html
 to understand what I'm talking about. But if you now have a Classpath
container for your customized jar(s), you can contribute a jem IConfigurationContributor
to allow you to contribute to the classpath. This is contributed as an
org.eclipse.jem.proxy.contributors extension point from your plugin.xml
for the plugin that you are using to control your contribution with the
VE. 

The IConfigurationContributor will be
called in the method contributeClasspaths. It is passed an IConfigurationContributionController
instance. and this class is used to contribute to the classpath. You
would call the contributeClasspath method with the location to use and
with the flag PREPEND_BOOTPATH. This will pre-pend it to the boot classpath.

Thanks,
Rich