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

CarrotClusteringEngine()

Method Summary

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)

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

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.