Class TokenCoverageRankingStrategy

java.lang.Object

ubic.gemma.rest.ranking.TokenCoverageRankingStrategy

All Implemented Interfaces:

AnnotationSearchRankingStrategy

@Component("coverage")
public class TokenCoverageRankingStrategy
extends Object
implements AnnotationSearchRankingStrategy

Re-orders hits by what fraction of the query tokens appear in the hit's lowercased value. Primary sort: coverage descending. Secondary sort: original Lucene rank ascending (stable relative to the input order for hits with identical coverage).

Empty / blank queries are short-circuited: the input order is returned unchanged so the caller's choice of upstream ordering wins.

Field Summary

Fields

Modifier and Type	Field	Description
static final String	NAME

Constructor Summary

Constructors

Constructor	Description
TokenCoverageRankingStrategy()

Method Summary

Modifier and Type	Method	Description
String	getName()	Short stable name used as the value of the ?rank= query parameter and as the bean name in the strategy registry.
List<CharacteristicValueObject>	rank(String originalQuery, List<CharacteristicValueObject> rawHits, Map<String,Integer> usageCountsByUri)	Re-order rawHits according to this strategy.

Methods inherited from class Object

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

Methods inherited from interface AnnotationSearchRankingStrategy

rank, rank, requiresStringPrior, requiresUsageCounts

Field Details

NAME

public static final String NAME

See Also:

• Constant Field Values

Constructor Details

TokenCoverageRankingStrategy

public TokenCoverageRankingStrategy()

Method Details

rank

public List<CharacteristicValueObject> rank(String originalQuery,
 List<CharacteristicValueObject> rawHits,
 Map<String,Integer> usageCountsByUri)

Description copied from interface: AnnotationSearchRankingStrategy

Re-order rawHits according to this strategy.

Specified by:

rank in interface AnnotationSearchRankingStrategy

Parameters:

originalQuery - the original query string the user typed; whitespace-tokenised and lowercased by token-coverage strategies; may be blank.

rawHits - the Lucene-ordered hits; index in this list is the "original rank" used by rank-aware strategies. Must not be mutated.

usageCountsByUri - per-URI count of distinct experiments referencing the URI; may be empty.

Returns:

a new list of the same hits in the desired display order.

getName

public String getName()

Description copied from interface: AnnotationSearchRankingStrategy

Short stable name used as the value of the ?rank= query parameter and as the bean name in the strategy registry. Lowercase, single word.

Specified by:

getName in interface AnnotationSearchRankingStrategy