org.apache.solr.search.join

Class BlockJoinFacetComponent

java.lang.Object

org.apache.solr.handler.component.SearchComponent

org.apache.solr.search.join.BlockJoinFacetComponent

All Implemented Interfaces:

SolrInfoMBean, NamedListInitializedPlugin

Direct Known Subclasses:

BlockJoinDocSetFacetComponent

public class BlockJoinFacetComponent
extends SearchComponent

Calculates facets on children documents and aggregates hits by parent documents. Enables when child.facet.field parameter specifies a field name for faceting. So far it supports string fields only. It requires to search by ToParentBlockJoinQuery. It disables query result cache but only when it's ebaled for request by child.facet.field parameter

Nested Class Summary

Nested classes/interfaces inherited from interface org.apache.solr.core.SolrInfoMBean

SolrInfoMBean.Category

Field Summary

Fields

Modifier and Type	Field and Description
static String	CHILD_FACET_FIELD_PARAMETER
static String	COLLECTOR_CONTEXT_PARAM
static String	NO_TO_PARENT_BJQ_MESSAGE

Fields inherited from class org.apache.solr.handler.component.SearchComponent

standard_components

Constructor Summary

Constructors

Constructor and Description
BlockJoinFacetComponent()

Method Summary

Methods

Modifier and Type	Method and Description
void	finishStage(ResponseBuilder rb) Called after all responses have been received for this stage.
String	getDescription() Simple one or two line description
void	handleResponses(ResponseBuilder rb, ShardRequest sreq) Called after all responses for a single request were received
void	prepare(ResponseBuilder rb) Prepare the response.
void	process(ResponseBuilder rb) Process the request for this component
protected void	validateQuery(Query query)

Methods inherited from class org.apache.solr.handler.component.SearchComponent

distributedProcess, getCategory, getDocs, getName, getSource, getStatistics, getVersion, init, modifyRequest, setName

Methods inherited from class java.lang.Object

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

Field Detail

CHILD_FACET_FIELD_PARAMETER

public static final String CHILD_FACET_FIELD_PARAMETER

See Also:

Constant Field Values

NO_TO_PARENT_BJQ_MESSAGE

public static final String NO_TO_PARENT_BJQ_MESSAGE

See Also:

Constant Field Values

COLLECTOR_CONTEXT_PARAM

public static final String COLLECTOR_CONTEXT_PARAM

See Also:

Constant Field Values

Constructor Detail

BlockJoinFacetComponent

public BlockJoinFacetComponent()

Method Detail

prepare

public void prepare(ResponseBuilder rb)
             throws IOException

Description copied from class: SearchComponent

Prepare the response. Guaranteed to be called before any SearchComponent SearchComponent.process(org.apache.solr.handler.component.ResponseBuilder) method. Called for every incoming request. The place to do initialization that is request dependent.

Specified by:

prepare in class SearchComponent

Parameters:

rb - The ResponseBuilder

Throws:

IOException - If there is a low-level I/O error.

validateQuery

protected void validateQuery(Query query)

process

public void process(ResponseBuilder rb)
             throws IOException

Description copied from class: SearchComponent

Process the request for this component

Specified by:

process in class SearchComponent

Parameters:

rb - The ResponseBuilder

Throws:

IOException - If there is a low-level I/O error.

handleResponses

public void handleResponses(ResponseBuilder rb,
                   ShardRequest sreq)

Description copied from class: SearchComponent

Called after all responses for a single request were received

Overrides:

handleResponses in class SearchComponent

finishStage

public void finishStage(ResponseBuilder rb)

Description copied from class: SearchComponent

Called after all responses have been received for this stage. Useful when different requests are sent to each shard.

Overrides:

finishStage in class SearchComponent

getDescription

public String getDescription()

Description copied from interface: SolrInfoMBean

Simple one or two line description

Specified by:

getDescription in interface SolrInfoMBean

Specified by:

getDescription in class SearchComponent