ai.grakn.graql.internal.reasoner.cache

Class LazyQueryCache<T extends ReasonerQuery>

java.lang.Object

ai.grakn.graql.internal.reasoner.cache.LazyQueryCache<T>

public class LazyQueryCache<T extends ReasonerQuery>
extends Object

Lazy container class for storing performed query resolutions.

Author:

Kasper Piskorski

Field Summary

Fields

Modifier and Type	Field and Description
Map<T,javafx.util.Pair<T,LazyIterator<Map<VarName,Concept>>>>	cache

Constructor Summary

Constructors

Constructor and Description
LazyQueryCache()

Method Summary

Modifier and Type	Method and Description
long	answerSize(Set<T> queries)
boolean	contains(T query)
java.util.stream.Stream<Map<VarName,Concept>>	getAnswers(T query) retrieve cached answers for provided query
java.util.stream.Stream<Map<VarName,Concept>>	record(T query, java.util.stream.Stream<Map<VarName,Concept>> answers) updates the cache by the specified query

Methods inherited from class java.lang.Object

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

Field Detail

cache

public final Map<T extends ReasonerQuery,javafx.util.Pair<T extends ReasonerQuery,LazyIterator<Map<VarName,Concept>>>> cache

Constructor Detail

LazyQueryCache

public LazyQueryCache()

Method Detail

contains

public boolean contains(T query)

record

public java.util.stream.Stream<Map<VarName,Concept>> record(T query,
                                                            java.util.stream.Stream<Map<VarName,Concept>> answers)

updates the cache by the specified query

Parameters:

query - query to be added/updated

answers - answers to the query

getAnswers

public java.util.stream.Stream<Map<VarName,Concept>> getAnswers(T query)

retrieve cached answers for provided query

Parameters:

query - for which to retrieve answers

Returns:

unified cached answers

answerSize

public long answerSize(Set<T> queries)