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TreeViewer.setInput

1 reply on 1 page. Most recent reply: Sep 30, 2004 3:00 AM by Amit Singhal

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Martin Kendel

Posts: 1
Nickname: dragonfly
Registered: Sep, 2004

TreeViewer.setInput

Posted: Sep 12, 2004 6:05 AM

Hi all, 

I tried out the example code from 
http://www-106.ibm.com/developerworks/library/os-ecgui1/ 
When executing the call to tv.setInput(file) I get an exception I can't deal with.
Can anyone help?? 
Thanks for any hint. 

The code: 

import java.io.*; 
import org.eclipse.jface.viewers.*; 
import org.eclipse.jface.window.*; 
import org.eclipse.swt.*; 
import org.eclipse.swt.widgets.*; 

public class Explorer extends ApplicationWindow 
{ 
public Explorer() 
{ 
super(null); 
} 
 
protected Control createContents(Composite parent) 
{ 
TreeViewer tv = new TreeViewer(parent); 
tv.setContentProvider(new FileTreeContentProvider()); 
File file = new File( "C:\\" ); 
tv.setInput( file ); here the exception raises 
return tv.getTree(); 
} 

public static void main(String[] args) 
{ 
Explorer w = new Explorer(); 
w.setBlockOnOpen(true); 
w.open(); 
Display.getCurrent().dispose(); 
} 
} 
 

...and the exception: 

java.lang.NoClassDefFoundError: org/osgi/framework/InvalidSyntaxException
at org.eclipse.core.runtime.Platform.run(Platform.java:747) 
at org.eclipse.jface.viewers.StructuredViewer.updateItem(StructuredViewer.java:137 4) 
at org.eclipse.jface.viewers.AbstractTreeViewer.createTreeItem(AbstractTreeViewer. java:381) 
at org.eclipse.jface.viewers.AbstractTreeViewer$1.run(AbstractTreeViewer.java:361) 
at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:69) 
at org.eclipse.jface.viewers.AbstractTreeViewer.createChildren(AbstractTreeViewer. java:342) 
at org.eclipse.jface.viewers.AbstractTreeViewer$5.run(AbstractTreeViewer.java:787) 
at org.eclipse.jface.viewers.StructuredViewer.preservingSelection(StructuredViewer .java:862) 
at org.eclipse.jface.viewers.AbstractTreeViewer.inputChanged(AbstractTreeViewer.ja va:777) 
at org.eclipse.jface.viewers.ContentViewer.setInput(ContentViewer.java:238)<br& gt;
at org.eclipse.jface.viewers.StructuredViewer.setInput(StructuredViewer.java:1059) 
at myJFaceSWTVersuche.Explorer.createContents(Explorer.java:22) 
at org.eclipse.jface.window.Window.create(Window.java:348) 
at org.eclipse.jface.window.Window.open(Window.java:637) 
at myJFaceSWTVersuche.Explorer.main(Explorer.java:30)

Amit Singhal

Posts: 1
Nickname: singhal
Registered: Sep, 2004

Re: TreeViewer.setInput

Posted: Sep 30, 2004 3:00 AM

Hi Mr. Martin,

Just Make sure that u have put swt.jar, jface.jar, osgi.jar in your classpath. I guess your problem will be solved by doing so.

Get back to me if need more clarification.

Thanks and Regards,
Amit

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