Re: [TM4J-users] FullTextSearch example

[Kal A. <ka...@te...>]

Hi Richard,

I think that could be the problem - I'll take a look into it. Thanks  
for the bug report!

Cheers,

Kal

On 20 Jan 2005, at 13:33, Richard Gregory wrote:

> Hi again,
>
> Well, I got the FullTextSearch example working. I needed to insert the  
> following lines
>
> Properties props = new Properties();
> props.put("OPT_LUCENE_ANALYZER",  
> "org.tm4j.topicmap.index.lucene.analyzer");
> map.getIndexManager().registerIndexProvider(new  
> LuceneFullTextIndexProvider(props));
>
> before the following line in the FullTextSearch() method.
>
> index =  
> (FullTextIndex)map.getIndexManager().getIndex(FullTextIndex.class);
>
> I'm just creating the index in memory, so I haven't set the  
> OPT_LUCENE_DIR property.
>
> However, what is still confusing me, i is that if I now call the  
> index.isOpen() method to it
> returns 'true', but, unless I explicity call either the index.open()  
> or index.reindex() methods, I
> still get a NullPointerException (stack trace below) when I try to use  
> the index with the line:
>
> QueryResult result  = index.findByText(query, false);
>
> Exception in thread "main" java.lang.NullPointerException
>         at  
> org.apache.lucene.store.RAMInputStream.<init>(RAMDirectory.java:237)
>         at  
> org.apache.lucene.store.RAMDirectory.openFile(RAMDirectory.java:199)
>         at  
> org.apache.lucene.index.SegmentInfos.read(SegmentInfos.java:72)
>         at  
> org.apache.lucene.index.IndexReader$1.doBody(IndexReader.java:116)
>         at org.apache.lucene.store.Lock$With.run(Lock.java:148)
>         at  
> org.apache.lucene.index.IndexReader.open(IndexReader.java:111)
>         at  
> org.apache.lucene.search.IndexSearcher.<init>(IndexSearcher.java:80)
>         at  
> org.tm4j.topicmap.index.text.LuceneIndexBase.findByText(LuceneIndexBase 
> .java:113)
>         at  
> mips.genre.topicmaps.FullTextSearch.go(FullTextSearch.java:130)
>         at  
> mips.genre.topicmaps.FullTextSearch.main(FullTextSearch.java:96)
>
>
> I'm note quite sure what's happening, but from looking at the  
> findByText() method in the
> LuceneIndexBase class source, I would expect to get the message below  
> rather than a
> NullPointerException
>
> if (dir == null) {
>             throw new IndexException(
>                 "FullText index not created. Call open before usage");
>        }
>
> Maybe the test 'if (dir == null)' which is also used in the  
> index.isOpen() method, isn't working
> properly to check whether the index is open?
>
> Cheers,
>
> Richard.
>
>
>  --- Richard Gregory <ric...@ya...> wrote:
>> Hi,
>>
>> I've been trying to run the full text search example provided with  
>> TM4J with one of my topic
>> maps,
>> but I just get a NullPointerException from the following line in the  
>> go() method:
>>
>>     QueryResult result  = index.findByText(query, false);
>>
>> The string that I'm searching for is the basename of a topic, which  
>> is successfully found by the
>> BaseNameDataIndex search, so I know it is in the topic map.
>>
>> If anyone has any ideas what is going wrong I'd be grateful.
>>
>> Cheers,
>>
>> Richard.
>>
>>
>>
>>
>>
>> 	
>> 	
>> 		
>> ___________________________________________________________
>> ALL-NEW Yahoo! Messenger - all new features - even more fun!  
>> http://uk.messenger.yahoo.com
>>
>>
>> -------------------------------------------------------
>> The SF.Net email is sponsored by: Beat the post-holiday blues
>> Get a FREE limited edition SourceForge.net t-shirt from ThinkGeek.
>> It's fun and FREE -- well, almost....http://www.thinkgeek.com/sfshirt
>> _______________________________________________
>> Tm4j-users mailing list
>> Tm4...@li...
>> https://lists.sourceforge.net/lists/listinfo/tm4j-users
>>
>
>
>
>
>
>
>
> 	
> 	
> 		
> ___________________________________________________________
> ALL-NEW Yahoo! Messenger - all new features - even more fun!  
> http://uk.messenger.yahoo.com
>
>
> -------------------------------------------------------
> This SF.Net email is sponsored by: IntelliVIEW -- Interactive Reporting
> Tool for open source databases. Create drag-&-drop reports. Save time
> by over 75%! Publish reports on the web. Export to DOC, XLS, RTF, etc.
> Download a FREE copy at http://www.intelliview.com/go/osdn_nl
> _______________________________________________
> Tm4j-users mailing list
> Tm4...@li...
> https://lists.sourceforge.net/lists/listinfo/tm4j-users
>
>