org.janusgraph.graphdb.query.index

Class ThresholdBasedIndexSelectionStrategy

java.lang.Object

org.janusgraph.graphdb.query.index.AbstractIndexSelectionStrategy

org.janusgraph.graphdb.query.index.ThresholdBasedIndexSelectionStrategy

All Implemented Interfaces:

IndexSelectionStrategy

public class ThresholdBasedIndexSelectionStrategy
extends AbstractIndexSelectionStrategy

Author:

Florian Grieskamp (Florian.Grieskamp@gdata.de)

Nested Class Summary

Nested classes/interfaces inherited from interface org.janusgraph.graphdb.query.index.IndexSelectionStrategy

IndexSelectionStrategy.SelectedIndexQuery

Field Summary

Fields

Modifier and Type	Field and Description
static ConfigOption<Integer>	INDEX_SELECT_BRUTE_FORCE_THRESHOLD
static String	NAME

Constructor Summary

Constructors

Constructor and Description
ThresholdBasedIndexSelectionStrategy(Configuration config)

Method Summary

Modifier and Type	Method and Description
IndexSelectionStrategy.SelectedIndexQuery	selectIndices(Set<IndexType> indexCandidates, MultiCondition<JanusGraphElement> conditions, Set<Condition> coveredClauses, OrderList orders, IndexSerializer serializer)

Methods inherited from class org.janusgraph.graphdb.query.index.AbstractIndexSelectionStrategy

addToJointQuery, createIndexCandidate, createIndexRawCandidates, getConditionBasicScore, getIndexTypeScore, selectIndices

Methods inherited from class java.lang.Object

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

Field Detail

NAME

public static final String NAME

See Also:

Constant Field Values

INDEX_SELECT_BRUTE_FORCE_THRESHOLD

public static final ConfigOption<Integer> INDEX_SELECT_BRUTE_FORCE_THRESHOLD

Constructor Detail

ThresholdBasedIndexSelectionStrategy

public ThresholdBasedIndexSelectionStrategy(Configuration config)

Method Detail

selectIndices

public IndexSelectionStrategy.SelectedIndexQuery selectIndices(Set<IndexType> indexCandidates,
                                                               MultiCondition<JanusGraphElement> conditions,
                                                               Set<Condition> coveredClauses,
                                                               OrderList orders,
                                                               IndexSerializer serializer)