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CommonNavigator with large files [message #328362]

Fri, 23 May 2008 09:55

Eclipse User

Hi,

I have some large files I'd like to expand in CommonNavigator, and since
parse takes quite a while I naturally don't want to duplicate this parse
in the editor. Could someone recommend a way where I can only parse
once, and use the same parsed model in my Editor as in my
ContentProvider for the Navigator? Where should this model be placed?

Thanks,

/Ola

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Re: CommonNavigator with large files [message #328400 is a reply to message #328362]

Fri, 23 May 2008 22:34

David Kyle

Messages: 125
Registered: July 2009

Senior Member

Ola,

I haven't implemented what you are looking to do but I would suggest looking
at the IDocumentProvider API. Your editor uses it and I don't see why you
couldn't get the Common Navigator to use it. I'm assuming your file is
opened as an IDocument.

Check out how
DocumentProviderRegistry.getDefault().getDocumentProvider(IE ditorInput)
works.

I was thinking of doing this but our files are too massive to expand in the
Common Navigator. We consider a 1 Gigabyte file to be very small.

David Kyle
http://richclientplatform.blogspot.com/

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Re: CommonNavigator with large files [message #328581 is a reply to message #328362]

Tue, 27 May 2008 21:25

Francis Upton IV

Messages: 472
Registered: July 2009
Location: Oakland, CA

Senior Member

The navigators work with resources, how you manage the models is your
own affair. In my application, I keep a hash from the IFile to my model
object so I will find the open file if it's already in memory.

In my editor, I have some code like this:

@Override
public void init(IEditorSite site, IEditorInput input)
throws PartInitException
{
IFile file;

if (input instanceof IFileEditorInput)
{
file = ((IFileEditorInput)input).getFile();
_mainNode = _editor.getRuntime().findMainNode(file);
}

You can see that last method looks up the file.

HTH,

Francis

Ola Spjuth wrote:
> Hi,
>
> I have some large files I'd like to expand in CommonNavigator, and since
> parse takes quite a while I naturally don't want to duplicate this parse
> in the editor. Could someone recommend a way where I can only parse
> once, and use the same parsed model in my Editor as in my
> ContentProvider for the Navigator? Where should this model be placed?
>
> Thanks,
>
> /Ola

Platform UI Committer for Common Navigator

http://wiki.eclipse.org/index.php/Common_Navigator_Framework
http://help.eclipse.org/galileo/topic/org.eclipse.platform.d oc.isv/guide/cnf.htm

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