ai.grakn.graql.internal.reasoner.query

Class QueryAnswer

java.lang.Object

ai.grakn.graql.internal.reasoner.query.QueryAnswer

All Implemented Interfaces:

Answer

public class QueryAnswer
extends Object
implements Answer

Wrapper for query result class.

Author:

Kasper Piskorski

Constructor Summary

Constructors

Constructor and Description
QueryAnswer()
QueryAnswer(Answer a)
QueryAnswer(Map<VarName,Concept> m)

Method Summary

Modifier and Type	Method and Description
Set<Concept>	concepts()
boolean	containsKey(VarName var)
Answer	copy()
Set<Map.Entry<VarName,Concept>>	entrySet()
boolean	equals(Object obj)
QueryAnswer	explain(AnswerExplanation exp) explain this answer by providing explanation with preserving the structure of dependent answers
QueryAnswer	filterVars(Set<VarName> vars)
Concept	get(VarName var)
Set<Answer>	getAnswers()
AnswerExplanation	getExplanation()
Set<AnswerExplanation>	getExplanations()
Set<Answer>	getExplicitPath()
int	hashCode()
boolean	isEmpty()
Set<VarName>	keySet()
Map<VarName,Concept>	map()
Answer	merge(Answer a2) perform an answer merge without explanation NB:assumes answers are compatible (concept corresponding to join vars if any are the same)
Answer	merge(Answer a2, boolean mergeExplanation) perform an answer merge with optional explanation NB:assumes answers are compatible (concept corresponding to join vars if any are the same)
Concept	put(VarName var, Concept con)
void	putAll(Answer a)
void	putAll(Map<VarName,Concept> m2)
Concept	remove(VarName var)
QueryAnswer	setExplanation(AnswerExplanation e)
int	size()
QueryAnswer	unify(Unifier unifier)
Collection<Concept>	values()

Methods inherited from class java.lang.Object

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

Constructor Detail

QueryAnswer

public QueryAnswer()

QueryAnswer

public QueryAnswer(Answer a)

QueryAnswer

public QueryAnswer(Map<VarName,Concept> m)

Method Detail

copy

public Answer copy()

Specified by:

copy in interface Answer

equals

public boolean equals(Object obj)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object

keySet

public Set<VarName> keySet()

Specified by:

keySet in interface Answer

values

public Collection<Concept> values()

Specified by:

values in interface Answer

concepts

public Set<Concept> concepts()

Specified by:

concepts in interface Answer

entrySet

public Set<Map.Entry<VarName,Concept>> entrySet()

Specified by:

entrySet in interface Answer

get

public Concept get(VarName var)

Specified by:

get in interface Answer

put

public Concept put(VarName var,
                   Concept con)

Specified by:

put in interface Answer

remove

public Concept remove(VarName var)

Specified by:

remove in interface Answer

map

public Map<VarName,Concept> map()

Specified by:

map in interface Answer

putAll

public void putAll(Answer a)

Specified by:

putAll in interface Answer

putAll

public void putAll(Map<VarName,Concept> m2)

Specified by:

putAll in interface Answer

containsKey

public boolean containsKey(VarName var)

Specified by:

containsKey in interface Answer

isEmpty

public boolean isEmpty()

Specified by:

isEmpty in interface Answer

size

public int size()

Specified by:

size in interface Answer

merge

public Answer merge(Answer a2,
                    boolean mergeExplanation)

Description copied from interface: Answer

perform an answer merge with optional explanation NB:assumes answers are compatible (concept corresponding to join vars if any are the same)

Specified by:

merge in interface Answer

Parameters:

a2 - answer to be merged with

mergeExplanation - flag for providing explanation

Returns:

merged answer

merge

public Answer merge(Answer a2)

Description copied from interface: Answer

perform an answer merge without explanation NB:assumes answers are compatible (concept corresponding to join vars if any are the same)

Specified by:

merge in interface Answer

Parameters:

a2 - answer to be merged with

Returns:

merged answer

explain

public QueryAnswer explain(AnswerExplanation exp)

Description copied from interface: Answer

explain this answer by providing explanation with preserving the structure of dependent answers

Specified by:

explain in interface Answer

Parameters:

exp - explanation for this answer

Returns:

explained answer

filterVars

public QueryAnswer filterVars(Set<VarName> vars)

Specified by:

filterVars in interface Answer

unify

public QueryAnswer unify(Unifier unifier)

Specified by:

unify in interface Answer

getExplanation

public AnswerExplanation getExplanation()

Specified by:

getExplanation in interface Answer

setExplanation

public QueryAnswer setExplanation(AnswerExplanation e)

Specified by:

setExplanation in interface Answer

Parameters:

e - explanation to be set for this answer

Returns:

answer with provided explanation

getExplicitPath

public Set<Answer> getExplicitPath()

Specified by:

getExplicitPath in interface Answer

Returns:

set of answers corresponding to the explicit path

getAnswers

public Set<Answer> getAnswers()

Specified by:

getAnswers in interface Answer

Returns:

all answers taking part in the derivation of this answer

getExplanations

public Set<AnswerExplanation> getExplanations()

Specified by:

getExplanations in interface Answer

Returns:

all explanations taking part in the derivation of this answer