ai.grakn.graql.admin

Interface AnswerExplanation

All Known Implementing Classes:

Explanation, LookupExplanation, RuleExplanation

public interface AnswerExplanation

Base class for explanation classes.

Author:

Kasper Piskorski

Method Summary

Modifier and Type	Method and Description
boolean	addAnswer(Answer a)
AnswerExplanation	copy()
Set<Answer>	getAnswers()
ReasonerQuery	getQuery()
boolean	isEmpty()
boolean	isJoinExplanation()
boolean	isLookupExplanation()
boolean	isRuleExplanation()
AnswerExplanation	merge(AnswerExplanation a2)
AnswerExplanation	setQuery(ReasonerQuery q)

Method Detail

copy

AnswerExplanation copy()

getQuery

ReasonerQuery getQuery()

Returns:

query associated with this explanation

setQuery

AnswerExplanation setQuery(ReasonerQuery q)

Parameters:

q - query this explanation should be associated with

Returns:

explanation with provided query

addAnswer

boolean addAnswer(Answer a)

Parameters:

a - answer this explanation is dependent on

Returns:

true if added successfully

getAnswers

Set<Answer> getAnswers()

Returns:

answers this explanation is dependent on

merge

AnswerExplanation merge(AnswerExplanation a2)

Parameters:

a2 - explanation to be merged with

Returns:

merged explanation

isLookupExplanation

boolean isLookupExplanation()

Returns:

true if this explanation explains the answer on the basis of database lookup

isRuleExplanation

boolean isRuleExplanation()

Returns:

true if this explanation explains the answer on the basis of rule application

isJoinExplanation

boolean isJoinExplanation()

Returns:

true if this explanation explains an intermediate answer being a product of a join operation

isEmpty

boolean isEmpty()

Returns:

true if this is an empty explanation (explanation wasn't recorded)