org.elasticsearch.index.engine

Interface IndexSearcherWrapper

public interface IndexSearcherWrapper

Extension point to add custom functionality at request time to the DirectoryReader and IndexSearcher managed by the Engine.

Method Summary

Methods

Modifier and Type	Method and Description
org.apache.lucene.index.DirectoryReader	wrap(org.apache.lucene.index.DirectoryReader reader)
org.apache.lucene.search.IndexSearcher	wrap(EngineConfig engineConfig, org.apache.lucene.search.IndexSearcher searcher)

Method Detail

wrap

org.apache.lucene.index.DirectoryReader wrap(org.apache.lucene.index.DirectoryReader reader)
                                             throws IOException

Parameters:

reader - The provided directory reader to be wrapped to add custom functionality

Returns:

a new directory reader wrapping the provided directory reader or if no wrapping was performed the provided directory reader

Throws:

IOException

wrap

org.apache.lucene.search.IndexSearcher wrap(EngineConfig engineConfig,
                                          org.apache.lucene.search.IndexSearcher searcher)
                                            throws EngineException

Parameters:

engineConfig - The engine config which can be used to get the query cache and query cache policy from when creating a new index searcher

searcher - The provided index searcher to be wrapped to add custom functionality

Returns:

a new index searcher wrapping the provided index searcher or if no wrapping was performed the provided index searcher

Throws:

EngineException