I'm trying to reIndex a node into a specific indexer after the node is published. I have successfully done this on the Umbraco Events class like so:

    public void OnApplicationStarted(UmbracoApplicationBase umbracoApplication, ApplicationContext applicationContext)
    {
        Umbraco.Core.Services.ContentService.Published += ContentService_Published;
    }

    void ContentService_Published(Umbraco.Core.Publishing.IPublishingStrategy sender, Umbraco.Core.Events.PublishEventArgs<Umbraco.Core.Models.IContent> e)
    {
        var pois = e.PublishedEntities.Where(x => x.ContentType.Alias == DocumentTypeAlias.PointOfInterest);
        if (pois.Any())
        {
            foreach (var poi in pois)
            {
                POIsDataService.IndexNode(poi);
            }
        }
    }

The POIsDataService is the class where I centralize my indexing logic all together and looks like this:

public class POIsDataService : ISimpleDataService
{
    public IEnumerable<SimpleDataSet> GetAllData(string indexType)
    {
        var umbracoContext = DependencyResolver.Current.GetService<UmbracoContext>();

        var allPois = umbracoContext.ContentCache.GetAtRoot().SelectMany(x => x.Descendants(DocumentTypeAlias.POI))
            .Where(x => x.Path.StartsWith(ConfigurationManager.AppSettings[***]));

        var data = new List<SimpleDataSet>();
        foreach (var x in allPois)
        {
            try
            {
                var examineNode = Convert(x, umbracoContext);

                data.Add(examineNode);
            }
            catch (Exception ex)
            {
                //TODO: log exception
            }
        }
        return data;
    }

    public static void IndexNode(IContent node)
    {
        var umbracoContext = DependencyResolver.Current.GetService<UmbracoContext>();
        var examineData = Convert(node.ToPublishedContent(), umbracoContext);
        var examineNode = examineData.RowData.ToExamineXml(node.Id, Constants.Configs.POIType);
        ExamineManager.Instance.IndexProviderCollection[Constants.Configs.POIIndexerName].ReIndexNode(examineNode, Constants.Configs.POIType);
    }

    ...

}

So I have the node.ToPublishedContent() that I took from the great code of Jeroen here https://gist.github.com/jbreuer/dde3605035179c34b7287850c45cb8c9 and it works just fine.

The thing is, when I reindex everything the Searcher gets my node, however when I publish and ReIndex just one node the Searcher doesn't return it.

If I use Luke reader for lucene I can see the node is there and indexed with the new information but I do have to re-open the index. I wonder if I need to do something like this (reopening the index or reloading the index) also on Umbraco before doing the search? And if so, how do I do that?