Package com.yahoo.prelude.fastsearch

Class IndexedBackend

java.lang.Object

com.yahoo.prelude.fastsearch.VespaBackend

com.yahoo.prelude.fastsearch.IndexedBackend

public class IndexedBackend
extends VespaBackend

The searcher which forwards queries to fdispatch nodes, using the fnet/fs4 network layer.

Author:

bratseth

Nested Class Summary

Nested classes/interfaces inherited from class com.yahoo.prelude.fastsearch.VespaBackend

VespaBackend.FillHitsResult

Field Summary

Fields inherited from class com.yahoo.prelude.fastsearch.VespaBackend

SORTABLE_ATTRIBUTES_SUMMARY_CLASS

Constructor Summary

Constructors

Constructor	Description
IndexedBackend(String serverId, Dispatcher dispatcher, SummaryParameters docSumParams, ClusterParams clusterParams, DocumentdbInfoConfig documentdbInfoConfig, SchemaInfo schemaInfo)	Creates a Fastsearcher.

Method Summary

Modifier and Type	Method	Description
protected void	doPartialFill(Result result, String summaryClass)	Perform a partial docsum fill for a temporary result representing a partition of the complete fill request.
Result	doSearch2(String schema, Query query)	Searches a search cluster This is an endpoint - searchers will never propagate the search to any nested searcher.
String	toString()
protected void	transformQuery(Query query)

Methods inherited from class com.yahoo.prelude.fastsearch.VespaBackend

fill, fillHits, getDefaultDocsumClass, getDocumentDatabase, getName, getServerId, init, search, shutDown, summaryNeedsQuery

Methods inherited from class java.lang.Object

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

Constructor Details

IndexedBackend

public IndexedBackend(String serverId,
 Dispatcher dispatcher,
 SummaryParameters docSumParams,
 ClusterParams clusterParams,
 DocumentdbInfoConfig documentdbInfoConfig,
 SchemaInfo schemaInfo)

Creates a Fastsearcher.

Parameters:

serverId - the resource pool used to create direct connections to the local search nodes when bypassing the dispatch node

dispatcher - the dispatcher used (when enabled) to send summary requests over the rpc protocol. Eventually we will move everything to this protocol and never use dispatch nodes. At that point we won't need a cluster searcher above this to select and pass the right backend.

docSumParams - document summary parameters

clusterParams - the cluster number, and other cluster backend parameters

documentdbInfoConfig - document database parameters

Method Details

transformQuery

protected void transformQuery(Query query)

Overrides:

transformQuery in class VespaBackend

doSearch2

public Result doSearch2(String schema,
 Query query)

Description copied from class: VespaBackend

Searches a search cluster This is an endpoint - searchers will never propagate the search to any nested searcher.

Specified by:

doSearch2 in class VespaBackend

query - the query to search

doPartialFill

protected void doPartialFill(Result result,
 String summaryClass)

Perform a partial docsum fill for a temporary result representing a partition of the complete fill request.

Specified by:

doPartialFill in class VespaBackend

Parameters:

result - result containing a partition of the unfilled hits

summaryClass - the summary class we want to fill with

toString

public String toString()

Overrides:

toString in class Object