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Implementing createChildren [message #1386721]

Thu, 19 June 2014 20:00

Al B

Messages: 130
Registered: July 2009

Senior Member

I'm getting the error below when I compile the Xtext generated ui plugin.

The AQLOutlineTreeProvider.xtend was automatically generated so does it have to be changed after that or is there a way to resolve the error without changing the .xtend file?

The class AQLOutlineTreeProvider must be defined abstract because it does not implement createChildren(IOutlineNode, EObject)
19-Jun-2014 11:39:42 	     [java]      [java] 5331 [main] ERROR org.eclipse.xtend.core.compiler.batch.XtendBatchCompiler  -

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Re: Implementing createChildren [message #1386723 is a reply to message #1386721]

Thu, 19 June 2014 20:01

Christian Dietrich

Messages: 13468
Registered: July 2009

Senior Member

Hi,

if there is a error this is a bug.

Need professional support for Xtext, Xpand, EMF?
Go to: https://www.itemis.com/en/xtext/
Twitter : @chrdietrich
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Re: Implementing createChildren [message #1386724 is a reply to message #1386723]

Thu, 19 June 2014 20:17

Al B

Messages: 130
Registered: July 2009

Senior Member

Hi Christian,

It goes away if add the keyword abstract, is that required? Should the generator adds it by default, is that what you meant as a bug?

/*
* generated by Xtext
*/
package gov.nasa.arc.advocate.queries.xtext.ui.outline

/**
 * Customization of the default outline structure.
 *
 * see http://www.eclipse.org/Xtext/documentation.html#outline
 */
abstract class AQLOutlineTreeProvider extends org.eclipse.xtext.ui.editor.outline.impl.DefaultOutlineTreeProvider {
	
}

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Re: Implementing createChildren [message #1386725 is a reply to message #1386724]

Thu, 19 June 2014 20:24

Christian Dietrich

Messages: 13468
Registered: July 2009

Senior Member

no

the class should compile out of the box. it seems there is something wrong with your project setup.

DefaultOutlineTreeProvider is not abstract and thus every subclass should be fine.

Need professional support for Xtext, Xpand, EMF?
Go to: https://www.itemis.com/en/xtext/
Twitter : @chrdietrich
Blog : https://www.dietrich-it.de

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