I use hibernate search on windows.
And I try to configure it, how ever when I create a Query and call the query.list() only got the NULLException at NotSharedReaderProvider.java:43.

I checked and find that the index is not created :(. I don't understand why the code did not work. The codes follows the hibernate search document very well.

anyone can share a successful config on windows?

I config the hibernate.cfg.xml as follows:


<property name="hibernate.search.default.directory_provider">org.hibernate.search.store.FSDirectoryProvider</property>
<property name="hibernate.search.default.indexBase">e:\\test</property>


.....

<event type="post-update">
<listener class="org.hibernate.search.event.FullTextIndexEventListener"/>
</event>
<event type="post-insert">
<listener class="org.hibernate.search.event.FullTextIndexEventListener"/>
</event>
<event type="post-delete">
<listener class="org.hibernate.search.event.FullTextIndexEventListener"/>
</event>

===========================

and the java code


public static boolean createIndex() {
Session session = getSession();
FullTextSession fullTextSession = Search.createFullTextSession(session);
try {
List<TBook> bkList = session.createQuery("from TBook").list();

Transaction tx = fullTextSession.beginTransaction();
for (TBook book : bkList) {
fullTextSession.index(book);
}

tx.commit(); // index are written at commit time

fullTextSession.flush();
fullTextSession.close();
} catch (Exception e) {
e.printStackTrace();
}

return true;
}

public static List find() {
FullTextSession fullTextSession = this.getFullTextSession();
try {
QueryParser parser = new QueryParser("bkName", new StandardAnalyzer());
org.apache.lucene.search.Query luceneQuery;
luceneQuery = parser.parse("+hibernate +action");
Query fullTextQuery = fullTextSession.createFullTextQuery(luceneQuery);
return fullTextQuery.list(); //EXCEPTION happends here**************************************************
} catch (ParseException e) {
e.printStackTrace();
} finally {
if (fullTextSession != null) {
fullTextSession.close();
}
}

return null;
}


public static void main(String args[]) {
createIndex();
find();
}



===========================
and the entity class


@Indexed(index="")
public abstract class AbstractTBook implements java.io.Serializable {
.....

// Property accessors
@DocumentId
public Integer getId() {
return this.id;
}

@Field(index=Index.TOKENIZED, store=Store.YES)
public String getBkname() {
return this.bkname;
}
......
}

I can't understand how this could happen (NPE at that line)
Do you have anything earlier in your logs?
Can you post the full stack trace?

because the annotation is marked on AbstractTBook, how ever the pojo class is TBook (extends AbstractTBook). so the "hibernate search" failed to find any pojo class that need indexed.

Is any best practise to solve this problem?

Can you file a JIRA issue. In the mean time also annotate TBook with the same index name as AbstractTBook