org.apache.solr.handler.clustering.carrot2

Class CarrotClusteringEngine

java.lang.Object

org.apache.solr.handler.clustering.ClusteringEngine

org.apache.solr.handler.clustering.SearchClusteringEngine

org.apache.solr.handler.clustering.carrot2.CarrotClusteringEngine

public class CarrotClusteringEngine
extends SearchClusteringEngine

Search results clustering engine based on Carrot2 clustering algorithms.

See Also:

"http://project.carrot2.org"

WARNING: This API is experimental and might change in incompatible ways in the next release.

Field Summary

Fields inherited from class org.apache.solr.handler.clustering.ClusteringEngine

DEFAULT_ENGINE_NAME, ENGINE_NAME

Constructor Summary

Constructors

Constructor and Description
CarrotClusteringEngine()

Method Summary

Modifier and Type	Method and Description
Object	cluster(Query query, SolrDocumentList solrDocList, Map<SolrDocument,Integer> docIds, SolrQueryRequest sreq) Do the clustering, return a clusters structure to be appended to SolrQueryResponse.
protected Set<String>	getFieldsToLoad(SolrQueryRequest sreq) Returns the set of field names to load.
String	init(NamedList config, SolrCore core)
boolean	isAvailable()

Methods inherited from class org.apache.solr.handler.clustering.ClusteringEngine

getName

Methods inherited from class java.lang.Object

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

Constructor Detail

CarrotClusteringEngine

public CarrotClusteringEngine()

Method Detail

isAvailable

public boolean isAvailable()

Specified by:

isAvailable in class ClusteringEngine

init

public String init(NamedList config,
                   SolrCore core)

Overrides:

init in class ClusteringEngine

cluster

public Object cluster(Query query,
                      SolrDocumentList solrDocList,
                      Map<SolrDocument,Integer> docIds,
                      SolrQueryRequest sreq)

Description copied from class: SearchClusteringEngine

Do the clustering, return a clusters structure to be appended to SolrQueryResponse.

Specified by:

cluster in class SearchClusteringEngine

getFieldsToLoad

protected Set<String> getFieldsToLoad(SolrQueryRequest sreq)

Description copied from class: SearchClusteringEngine

Returns the set of field names to load. Concrete classes can override this method if needed. Default implementation returns null, that is, all stored fields are loaded.

Overrides:

getFieldsToLoad in class SearchClusteringEngine

Returns:

The set of field names to load.