我一直在努力解决以下问题几个小时。我试过用不同的NHibernate/NHibernate.Search程序集(3.0.0.4/2.1.2),它们都导致相同的错误。使用的Lucene版本是2.9.2.2NHibernate搜索Lucene.NET SearchFactory为null
所有这些都从源代码编译。 NHibernate设置为使用NHibernate Search,配置通过Fluent NHibernate。
FluentConfiguration fc = Fluently.Configure()
. (mappings, db config, etc.)
.ExposeConfiguration
(
cfg =>
{
cfg.SetProperty("hibernate.search.default.directory_provider", typeof(FSDirectoryProvider).AssemblyQualifiedName);
cfg.SetProperty("hibernate.search.default.indexBase", "~/Index");
cfg.SetProperty("hibernate.search.default.indexBase.create", "true");
cfg.SetListener(NHibernate.Event.ListenerType.PostUpdate, new FullTextIndexEventListener());
cfg.SetListener(NHibernate.Event.ListenerType.PostInsert, new FullTextIndexEventListener());
cfg.SetListener(NHibernate.Event.ListenerType.PostDelete, new FullTextIndexEventListener());
}
);
到目前为止好,一个指数在bin文件夹(segments.gen & segments_1文件)的索引目录中创建。
配置已经创建好之后我取NHibernate会话,并尝试一些指标:
var _session = _factory.OpenSession();
using (ITransaction tx = _session.BeginTransaction())
{
var fts = Search.CreateFullTextSession(_session);
fts.PurgeAll(typeof(User));
var coll = fts.CreateCriteria<User>().List<User>();
foreach (var item in coll)
{
fts.Index(item);
}
tx.Commit();
}
直到fts.PurgeAll或fts.Index被击中这又很好,这给此错误:
Object reference not set to an instance of an object.
Line 602: // TODO: Cache that at the FTSession level
Line 603: // not strictly necesary but a small optmization
Line 604: DocumentBuilder builder = searchFactoryImplementor.DocumentBuilders[clazz];
Line 605: if (builder != null)
Line 606: {
这个错误是从NHiberate.Search.dll引发的,它看起来像SearchFactory没有初始化。应会产生SearchFactory的代码返回null:
if (searchFactory == null)
{
searchFactory = ContextHelper.GetSearchFactory(session);
}
碰到,我需要初始化SearchFactory.Initialize的SearchFactory几种可能的解决方案,但没有这样的方法在我的(2.0/3.0)NHibernate.Search组件存在。
NHibernate.Search.Search.CreateFullTextSession(_session)
.CreateFullTextQuery<User>("Firstname:Cees").List<User>();
还抛出一个 '零异常'(当然),上述呼吁:
IDictionary<System.Type, DocumentBuilder> builders = searchFactory.DocumentBuilders;
凡searchFactory == NULL
有一个SearchFactoryImpl
SearchFactoryImpl searchFactory = NHibernate.Search.Impl.SearchFactoryImpl.GetSearchFactory(config);
哪个返回一个SearchFactoryImpl实例,不知道该怎么处理它...
也许我错过了什么?任何帮助深表感谢。