Hi Christian,
This is NHibernate specific, so I guess you have a better chance in there
forum.
:-)
Anders Lybecker
On Mon, Nov 14, 2011 at 5:24 PM, Christian Setzkorn
<christ...@setzkorn.eu>wrote:
> I have a class Publication which has a child PublicationX. I am trying to
> index all instances of Publication like this:
>
> public void BuildSearchIndex()
> {
> FSDirectory entityDirectory = null;
> IndexWriter writer = null;
>
> var entityType = typeof(Publication);
>
> var indexDirectory = new DirectoryInfo(GetIndexDirectory());
>
> if (indexDirectory.Exists)
> {
> indexDirectory.Delete(true);
> }
>
> try
> {
> var dir = new DirectoryInfo(Path.Combine(indexDirectory.FullName,
> entityType.Name));
> entityDirectory = FSDirectory.Open(dir);
> writer = new IndexWriter(entityDirectory, new
> StandardAnalyzer(Lucene.Net.Util.Version.LUCENE_29), true,
> IndexWriter.MaxFieldLength.UNLIMITED);
> }
> finally
> {
> if (entityDirectory != null)
> {
> entityDirectory.Close();
> }
>
> if (writer != null)
> {
> writer.Close();
> }
> }
>
> var fullTextSession =
> Search.CreateFullTextSession(NHibernateSession.Current);
>
> int totalCount =
>
> NHibernateSession.Current.CreateCriteria(typeof(Publication)).SetProjection(
> Projections.RowCount()).FutureValue<Int32>().Value;
>
> int pageSize = 500;
> int totalPages = totalCount / pageSize + 1;
> int currentPage = 0;
>
> do
> {
> IList<Publication> list =
>
> NHibernateSession.Current.CreateCriteria(typeof(Publication)).SetFirstResult
> (pageSize * (currentPage - 1)).SetMaxResults(pageSize *
> currentPage).Future<Publication>().ToList();
>
> foreach (Publication p in list)
> {
> fullTextSession.Index(p);
> }
> currentPage++;
> }
> while (currentPage < totalPages);
> }
>
> The idea is to do the indexing in batches (improvement suggestions welcome)
> as there are quite a lot of publications already in the relational
> database.
> Unfortunately, I am getting this exception:
>
> NHibernate.Search.Impl.SearchException was unhandled by user code
> Message=Unable to open IndexReader for EID2.Domain.PublicationX
> Source=NHibernate.Search
>
> I have marked both classes with [Indexed].
>
> Thanks.
>
> Christian
>
>
