org.janusgraph.graphdb.query.graph

Class MixedIndexCountQueryBuilder

java.lang.Object

org.janusgraph.graphdb.query.graph.MixedIndexCountQueryBuilder

All Implemented Interfaces:

MixedIndexCountQuery, ProfileObservable

public class MixedIndexCountQueryBuilder
extends Object
implements MixedIndexCountQuery

Builds a MixedIndexCountQuery, which contains a single query against a mixed index. It is used to retrieve total number of elements satisfying given conditions.

Author:

Boxuan Li (liboxuan@connect.hku.hk)

Constructor Summary

Constructors

Constructor and Description
MixedIndexCountQueryBuilder(IndexSerializer serializer, BackendTransaction txHandle)

Method Summary

Modifier and Type	Method and Description
MixedIndexCountQueryBuilder	constructIndex(JointIndexQuery indexQuery, ElementCategory resultType)
Long	executeTotals() Fire a count query against index backend to retrieve total number of satisfying elements
QueryProfiler	getProfiler()
void	observeWith(QueryProfiler parentProfiler, boolean hasSiblings)

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.janusgraph.graphdb.query.profile.ProfileObservable

observeWith

Constructor Detail

MixedIndexCountQueryBuilder

public MixedIndexCountQueryBuilder(IndexSerializer serializer,
                                   BackendTransaction txHandle)

Method Detail

constructIndex

public MixedIndexCountQueryBuilder constructIndex(JointIndexQuery indexQuery,
                                                  ElementCategory resultType)

executeTotals

public Long executeTotals()

Description copied from interface: MixedIndexCountQuery

Fire a count query against index backend to retrieve total number of satisfying elements

Specified by:

executeTotals in interface MixedIndexCountQuery

Returns:

total elements that match the query

observeWith

public void observeWith(QueryProfiler parentProfiler,
                        boolean hasSiblings)

Specified by:

observeWith in interface ProfileObservable

getProfiler

public QueryProfiler getProfiler()

Specified by:

getProfiler in interface ProfileObservable