org.apache.solr.search.grouping.distributed.shardresultserializer
Class SearchGroupsResultTransformer

java.lang.Object
  org.apache.solr.search.grouping.distributed.shardresultserializer.SearchGroupsResultTransformer

All Implemented Interfaces:

ShardResultTransformer<List<Command>,Map<String,Pair<Integer,Collection<SearchGroup<BytesRef>>>>>

public class SearchGroupsResultTransformer
extends Object
implements ShardResultTransformer<List<Command>,Map<String,Pair<Integer,Collection<SearchGroup<BytesRef>>>>>

Implementation for transforming SearchGroup into a NamedList structure and visa versa.

Constructor Summary

SearchGroupsResultTransformer(SolrIndexSearcher searcher)

Method Summary

NamedList	transform(List<Command> data) Transforms data to a NamedList structure for serialization purposes.
Map<String,Pair<Integer,Collection<SearchGroup<BytesRef>>>>	transformToNative(NamedList<NamedList> shardResponse, Sort groupSort, Sort sortWithinGroup, String shard) Transforms the specified shard response into native structures.

Methods inherited from class java.lang.Object

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

Constructor Detail

SearchGroupsResultTransformer

public SearchGroupsResultTransformer(SolrIndexSearcher searcher)

Method Detail

transform

public NamedList transform(List<Command> data)
                    throws IOException

Transforms data to a NamedList structure for serialization purposes.

Specified by:

transform in interface ShardResultTransformer<List<Command>,Map<String,Pair<Integer,Collection<SearchGroup<BytesRef>>>>>

Parameters:

data - The data to be transformed

Returns:

NamedList structure

Throws:

IOException - If I/O related errors occur during transforming

transformToNative

public Map<String,Pair<Integer,Collection<SearchGroup<BytesRef>>>> transformToNative(NamedList<NamedList> shardResponse,
                                                                                     Sort groupSort,
                                                                                     Sort sortWithinGroup,
                                                                                     String shard)

Transforms the specified shard response into native structures.

Specified by:

transformToNative in interface ShardResultTransformer<List<Command>,Map<String,Pair<Integer,Collection<SearchGroup<BytesRef>>>>>

Parameters:

shardResponse - The shard response containing data in a NamedList structure

groupSort - The group sort

sortWithinGroup - The sort inside a group

shard - The shard address where the response originated from

Returns:

native structure of the data