Class SearcherFactory

Factory class used by SearcherManager to create new IndexSearchers. The default implementation just creates an IndexSearcher with no custom behavior:

    public IndexSearcher NewSearcher(IndexReader r)
    {
        return new IndexSearcher(r);
    }

You can pass your own factory instead if you want custom behavior, such as:

• Setting a custom scoring model: Similarity
• Parallel per-segment search: IndexSearcher(IndexReader, TaskScheduler)
• Return custom subclasses of IndexSearcher (for example that implement distributed scoring)
• Run queries to warm your IndexSearcher before it is used. Note: when using near-realtime search you may want to also set MergedSegmentWarmer to warm newly merged segments in the background, outside of the reopen path.

This is a Lucene.NET EXPERIMENTAL API, use at your own risk

Inheritance

System.Object

SearcherFactory

Inherited Members

System.Object.Equals(System.Object)

System.Object.Equals(System.Object, System.Object)

System.Object.GetHashCode()

System.Object.GetType()

System.Object.MemberwiseClone()

System.Object.ReferenceEquals(System.Object, System.Object)

System.Object.ToString()

Namespace: Lucene.Net.Search

Assembly: Lucene.Net.dll

Syntax

public class SearcherFactory

Methods

NewSearcher(IndexReader)

Returns a new IndexSearcher over the given reader.

Declaration

public virtual IndexSearcher NewSearcher(IndexReader reader)

Parameters

Type	Name	Description
IndexReader	reader

Returns

Type	Description
IndexSearcher