Eclipse RCP - Use Classes from a library that are imported from another plugin?

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Eclipse RCP - Use Classes from a library that are imported from another plugin?



follow situation.



-pluiginCore <- includes many Libraries (libA,liB) via pom.xml, do nothing else



-pluginA..F <- want use classes from libA.
-pluginF..Z <- want use classes from libB.



Is this possible with RCP?
Is this a good way?
Do I need to import via pom.xml libA and LibB in each plugin where I wanna use it?



I added pluginCore as a dependency of pluginA but still cant use libA.





Plugins can only use libraries that are included in plugins, they can't reference external jars.
– greg-449
Aug 8 at 18:23





Yes, this is what I try to achieve. For that reason i added libA and libB to pluginCore. After that I add a dependecy to from pluginA to Core in hope that i can use libA.
– user3290745
Aug 8 at 19:31





You don't use maven dependencies for this. It must be done with the MANIFEST.MF directives for this - Bundle-ClassPath, Export-Package, Require-Bundle, Import-Package. The MANIFEST.MF is the only thing the Eclipse plugin system looks at.
– greg-449
Aug 8 at 20:20




1 Answer
1



You have to do this using the directives in the MANIFEST.MF of the plugins.



For the plugin which contains the libraries you use the Bundle-ClassPath to specifies the jars in the plugin. For example:


Bundle-ClassPath


Bundle-ClassPath: .,
lib/jogg-0.0.7.jar,
lib/jorbis-0.0.15.jar,
lib/vorbisspi1.0.2.jar



The . entry is for the normal code in the plugin, the other entries are jars in a lib directory.


.


lib



You must also specify the additional jars in the build.properties for the plugin.


build.properties



You use the Export-Package directive to say which packages from these jars are available to other plugins:


Export-Package


Export-Package: com.jcraft.jogg,
com.jcraft.jorbis



Plugins which wish to refer to these packages can either use Require-Bundle to add a dependency to the plugin exporting the packages, or they can use Import-Package to let Eclipse find the imported package.


Require-Bundle


Import-Package





Thank you so much
– user3290745
Aug 8 at 21:01





One other thing - if you are using maven look at Eclipse Tycho which provides support for building RCPs and plugins to maven.
– greg-449
Aug 9 at 5:46






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