org.elasticsearch.index.engine

Class IndexSearcherWrappingService

java.lang.Object

org.elasticsearch.index.engine.IndexSearcherWrappingService

public final class IndexSearcherWrappingService
extends Object

Service responsible for wrapping the DirectoryReader and IndexSearcher of a Engine.Searcher via the configured IndexSearcherWrapper instance. This allows custom functionally to be added the Engine.Searcher before being used to do an operation (search, get, field stats etc.)

Constructor Summary

Constructors

Constructor and Description
IndexSearcherWrappingService(Set<IndexSearcherWrapper> wrappers)

Method Summary

Methods

Modifier and Type	Method and Description
Engine.Searcher	wrap(EngineConfig engineConfig, Engine.Searcher engineSearcher) If there are configured IndexSearcherWrapper instances, the IndexSearcher of the provided engine searcher gets wrapped and a new Engine.Searcher instances is returned, otherwise the provided Engine.Searcher is returned.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

IndexSearcherWrappingService

@Inject
public IndexSearcherWrappingService(Set<IndexSearcherWrapper> wrappers)

Method Detail

wrap

public final Engine.Searcher wrap(EngineConfig engineConfig,
                   Engine.Searcher engineSearcher)
                           throws IOException

If there are configured IndexSearcherWrapper instances, the IndexSearcher of the provided engine searcher gets wrapped and a new Engine.Searcher instances is returned, otherwise the provided Engine.Searcher is returned. This is invoked each time a Engine.Searcher is requested to do an operation. (for example search)

Throws:

IOException