Package org.apache.solr.analytics.facet

Class AbstractSolrQueryFacet

java.lang.Object

org.apache.solr.analytics.facet.AnalyticsFacet

org.apache.solr.analytics.facet.AbstractSolrQueryFacet

Direct Known Subclasses:

QueryFacet, RangeFacet

public abstract class AbstractSolrQueryFacet
extends AnalyticsFacet

Solr Query Facets are AnalyticsFacets that are calculated after the document streaming phase has occurred in the AnalyticsDriver (during which StreamingFacets and overall expressions are calculated). AbstractSolrQueryFacets should not be confused with QueryFacets, which are a specific sub-type.

The filtering for these facets is done through issuing additional Solr queries, and collecting on the resulting documents. Unlike streaming facets, which have an unspecified amount of facet values (facet buckets), the amount of facet values is determined by the user and a Solr query is issued for each requested facet value.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
class	AbstractSolrQueryFacet.FacetValueQueryExecuter	This executer is in charge of issuing the Solr query for a facet value and collecting results as the query is processed.

Field Summary

Fields inherited from class org.apache.solr.analytics.facet.AnalyticsFacet

collectionManager, expressionCalculator, name, reductionData

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	AbstractSolrQueryFacet(String name)

Method Summary

Modifier and Type	Method	Description
abstract void	createFacetValueExecuters(org.apache.lucene.search.Query filter, SolrQueryRequest queryRequest, Consumer<AbstractSolrQueryFacet.FacetValueQueryExecuter> consumer)	Returns the set of AbstractSolrQueryFacet.FacetValueQueryExecuters, one for each facet value, through the given consumer.

Methods inherited from class org.apache.solr.analytics.facet.AnalyticsFacet

createOldResponse, createResponse, exportFacetValue, exportShardData, getName, importFacetValue, importShardData, setExpressionCalculator, setReductionCollectionManager

Methods inherited from class java.lang.Object

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

Constructor Detail

AbstractSolrQueryFacet

protected AbstractSolrQueryFacet(String name)

Method Detail

createFacetValueExecuters

public abstract void createFacetValueExecuters(org.apache.lucene.search.Query filter,
                                               SolrQueryRequest queryRequest,
                                               Consumer<AbstractSolrQueryFacet.FacetValueQueryExecuter> consumer)

Returns the set of AbstractSolrQueryFacet.FacetValueQueryExecuters, one for each facet value, through the given consumer.

Each of these executors will be executed after the streaming phase in the AnalyticsDriver.

Parameters:

filter - the overall query representing the documents being used for the analytics request

queryRequest - the queryRequest

consumer - the consumer of each facet value's executer