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Common Navigator Content Issue [message #333393]

Tue, 09 December 2008 02:21

Erik Englund

Messages: 49
Registered: July 2009

Member

I have a Common Navigator Content Provider. For get Elements I return
back my model which implements a java.util.Collection, specifically
extends Arraylist.

A second object returned in the same returned array also extends
ArrayList.

However, when I go to view the tree only one object shows up. I tried a
second experiement where I returned new Object[]{new ArrayList(), new
Vector()). I got only one error complaining about a missing label
provider.

What am I doing wrong here? I would expect to be able to return many
types of collections in the same return value.

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Re: Common Navigator Content Issue [message #333530 is a reply to message #333393]

Tue, 16 December 2008 21:12

Francis Upton IV

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

Senior Member

getElements() returns an array of objects, each member of which is put
into the underlying SWT tree. I don't understand why your model objects
extend ArrayList and what you are trying to accomplish there. Normally,
model objects are just normal objects which will appear in the navigator
tree.

Can you give some more background about what you are trying to do?

Erik wrote:
> I have a Common Navigator Content Provider. For get Elements I return
> back my model which implements a java.util.Collection, specifically
> extends Arraylist.
>
> A second object returned in the same returned array also extends ArrayList.
> However, when I go to view the tree only one object shows up. I tried a
> second experiement where I returned new Object[]{new ArrayList(), new
> Vector()). I got only one error complaining about a missing label
> provider.
> What am I doing wrong here? I would expect to be able to return many
> types of collections in the same return value.
>

--
*new* Common Navigator Framework section in:
3.4RC4 Platform Plugin Developer Guide (Programmer's Guide)
http://help.eclipse.org/ganymede/topic/org.eclipse.platform. doc.isv/guide/cnf.htm
http://dev.eclipse.org/blogs/francis
http://wiki.eclipse.org/Common_Navigator_Framework
http://wiki.eclipse.org/Common_Navigator_Framework_Use_Cases

You have brains in your head.
You have feet in your shoes.
- Dr Seuss, Oh the Places You'll Go

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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