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Obtain list of ALL nature ids [message #250209]

Mon, 07 June 2004 14:50

Eclipse User

Originally posted by: karypid.inf.uth.nospam.gr

Hi,

How can I obtain a list of all natures registered with the platform? (i.e.
all hooks to the org.eclipse.core.resources.natures extension point). I
need a list of all of them regardless of whether they are in use by a
project or not...

Thanks!
--
Alexandros Karypidis

Re: Obtain list of ALL nature ids [message #250912 is a reply to message #250209]

Wed, 09 June 2004 09:19

Eclipse User

Originally posted by: jmitch.ca.NOSPAM.ibm.com

Alexandros Karypidis wrote:
> Hi,
>
> How can I obtain a list of all natures registered with the platform? (i.e.
> all hooks to the org.eclipse.core.resources.natures extension point). I
> need a list of all of them regardless of whether they are in use by a
> project or not...
>
> Thanks!

You can use the Plug-in registry APIs to find plug-ins which contribute
to a certain extension point.

// ID for the extension point of interest
String theExtensionPoint = "org.eclipse.core.resources.natures";

// get access to plug-in registry
IPluginRegistry pluginRegistry = Platform.getPluginRegistry();

// get the extension-point that we're interested in
// so we can find the extensions to it
IExtensionPoint point =
pluginRegistry.getExtensionPoint(theExtensionPoint);

// find all extensions to the extension-point
IExtension[] extensions = point.getExtensions();

// loop through the extensions
for (int i = 0; i < extensions.length; i++)
{
IExtension currentExtension = extensions[i];

// output each extension
System.out.println(currentExtension.getUniqueIdentifier());

}

--
Jeff Mitchell
WebSphere Training and Technical Enablement

Re: Obtain list of ALL nature ids [message #251075 is a reply to message #250912]

Wed, 09 June 2004 12:08

Eclipse User

Originally posted by: karypid.inf.uth.nospam.gr

Indeed. I had managed to dig it up in the API and have actually created my
first plugin (ooh, the pride of it! :-)) which provides a view with the
following:

- It is a view which shows a tree of all open projects.
- Each project has a list of nature ids registered with it as children.
- You may remove natures from a project using an action in the view.
- You may add a nature to a project by selecting from a list of natures.

Of course, selecting natures which are incompatible will fail, etc.

Is this a really bad idea? I was surprised there wasn't such a thing already
in Eclipse (or is there? argh!). I wrote it because I am writing my own
nature which adds my own builder that processes some files written in a
custom language. It's a convenient way to enable / disable the builder. If
someone finds it useful, I can send you my totally inappropriate newbie
code... :-P

Jeff Mitchell wrote:

> Alexandros Karypidis wrote:
>> How can I obtain a list of all natures registered with the platform?
>> ...
> You can use the Plug-in registry APIs to find plug-ins which contribute
> to a certain extension point.
> ...

--
Alexandros Karypidis

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