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Using the Search Engine to find an anonymous class [message #534751]

Thu, 20 May 2010 08:54

Chris

Messages: 44
Registered: April 2010

Member

Hi,

I want to find an anonymous class which I know by fully qualified name using the Java Search Engine. I tried the following, but it would not work for anonymous or any "normal" nested type:

SearchPattern pattern = SearchPattern.createPattern(this.fullyQualifiedName, IJavaSearchConstants.TYPE, IJavaSearchConstants.DECLARATIONS, SearchPattern.R_EXACT_MATCH);
IJavaSearchScope scope = SearchEngine.createWorkspaceScope();
SearchRequestor requestor = new TypeSearchRequestor(this);
SearchEngine searchEngine = new SearchEngine();
searchEngine.search(pattern, new SearchParticipant[] {SearchEngine.getDefaultSearchParticipant()}, scope, requestor, null);

The TypeSearchRequestor does not get called in this setup for anonymous and nested classes. The code works fine however for any type, not nested in another.

What am I doing wrong here? Thanks for any insights you can offer.

Regards,
Chris

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Re: Using the Search Engine to find an anonymous class [message #535962 is a reply to message #534751]

Wed, 26 May 2010 13:45

Chris

Messages: 44
Registered: April 2010

Member

Sadly, noone seems to have an answer to my OP. So there is the following workaround (which in fact has a lot of nice other properties):

Instead of using the fully qualified name, one can use the handle identifier. Then retrieving it from JDT is a piece of cake in all cases:

IJavaElement jdtData = JavaCore.create(this.handleIdentifier);

Not knowing this did cost me two days of stumbling around in circles Confused

. Gladly I dared to peak into the JDT source code.

Hope this helps other JDT noobies, too.

Regards,
Chris

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Re: Using the Search Engine to find an anonymous class [message #539562 is a reply to message #535962]

Fri, 11 June 2010 10:17

Dani Megert

Messages: 3802
Registered: July 2009

Senior Member

Chris wrote:
> Sadly, noone seems to have an answer to my OP. So there is the
> following workaround (which in fact has a lot of nice other properties):
>
> Instead of using the fully qualified name, one can use the handle
> identifier. Then retrieving it from JDT is a piece of cake in all cases:
>
> IJavaElement jdtData = JavaCore.create(this.handleIdentifier);
This is not the right approach (don't fiddle around with handles) and it
wont find all anonymous classes of a given type. What you need to do, is
search the type REFERENCES to that type and then test
match.getElement().isAnonymous().

Dani
>
> Not knowing this did cost me two days of stumbling around in circles
> :?. Gladly I dared to peak into the JDT source code.
>
> Hope this helps other JDT noobies, too.
>
> Regards,
> Chris

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