Package edu.cnm.deepdive.interviewprep.service

Class QuestionService

java.lang.Object

edu.cnm.deepdive.interviewprep.service.QuestionService

@Service
public class QuestionService
extends Object

This class implements the high level persistence and business logic for the Question entity.

Constructor Summary

Constructors

Constructor	Description
QuestionService(QuestionRepository questionRepository)	Constructor that instantiates a new Question service object.

Method Summary

Modifier and Type	Method	Description
Question	createQuestion(Question question, User user)	Creates a new Question object in the database for the current user.
void	delete(UUID externalKey, User user)	Deletes a Question object identified by external key for the current user.
Optional<Question>	get(UUID externalKey)	Gets the current Question object records from the database identified by external key.
Optional<Question>	get(UUID externalKey, User user)	Returns a Question object identified by the external key for the current user.
List<Question>	getQuestions()	Returns a list of all Question in the database.
Question	getRandomQuestion()	Returns a random Question object from the database.
Question	saveQuestion(Question question, User user)	Saves a Question object to the database for the current user.
Optional<Question>	updateQuestion(UUID externalKey, Question question, User user)	Updates a Question object to the database for the current user.

Methods inherited from class java.lang.Object

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

Constructor Detail

QuestionService

@Autowired
public QuestionService(QuestionRepository questionRepository)

Constructor that instantiates a new Question service object.

Parameters:

questionRepository - Question repository object.

Method Detail

get

public Optional<Question> get(UUID externalKey,
                              User user)

Returns a Question object identified by the external key for the current user.

Parameters:

externalKey - External key in the form of a universally unique identifier.

user - A User object.

Returns:

An optional Question object.

delete

public void delete(UUID externalKey,
                   User user)

Deletes a Question object identified by external key for the current user.

Parameters:

externalKey - External key in the form of a universally unique identifier.

user - A User object.

getQuestions

public List<Question> getQuestions()

Returns a list of all Question in the database.

Returns:

A list of all Question objects.

get

public Optional<Question> get(UUID externalKey)

Gets the current Question object records from the database identified by external key.

Parameters:

externalKey - Id in the form of a universally unique identifier.

Returns:

An optional Question object.

createQuestion

public Question createQuestion(Question question,
                               User user)

Creates a new Question object in the database for the current user.

Parameters:

question - A Question object.

user - A User object.

Returns:

A Question object.

saveQuestion

public Question saveQuestion(Question question,
                             User user)

Saves a Question object to the database for the current user.

Parameters:

question - A Question object.

user - A User object.

Returns:

A Question object.

getRandomQuestion

public Question getRandomQuestion()

Returns a random Question object from the database.

Returns:

A random Question object.

updateQuestion

public Optional<Question> updateQuestion(UUID externalKey,
                                         Question question,
                                         User user)

Updates a Question object to the database for the current user.

Parameters:

externalKey - External key in the form of a universally unique identifier.

question - A Question object.

user - A User object.

Returns:

A Question object.