Package com.alpaca.service.impl

Class UserServiceImpl

java.lang.Object

com.alpaca.service.impl.GenericServiceImpl<User,UUID>

com.alpaca.service.impl.UserServiceImpl

All Implemented Interfaces:

IGenericService<User,UUID>, IUserService

@Service
public class UserServiceImpl
extends GenericServiceImpl<User,UUID>
implements IUserService

Service layer implementation for managing User entities and encapsulating business logic beyond simple CRUD operations inherited from IGenericService.

Provides transactional operations for user registration, verification, and search by email. Error handling is included for invalid inputs and missing users.

See Also:

• IGenericService
• IUserService

Field Summary

Fields

Modifier and Type	Field	Description
private final IUserDAO	dao

Constructor Summary

Constructors

Constructor	Description
UserServiceImpl()

Method Summary

Modifier and Type	Method	Description
boolean	existsByEmail(String email)	Checks whether a user exists based on their email address.
User	findByEmail(String email)	Retrieves a User by their email address.
protected IGenericDAO<User,UUID>	getDAO()	Provides the DAO component used by inherited service operations.
protected String	getEntityName()	Supplies a human-readable entity name used in exception messages.
User	register(User user)	Registers a new User in the system.

Methods inherited from class com.alpaca.service.impl.GenericServiceImpl

deleteById, existsAllByIds, existsById, existsByUniqueProperties, findAll, findAllByIds, findAllByIdsToSet, findAllPage, findById, save, saveAll, updateById

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.alpaca.service.IGenericService

deleteById, existsAllByIds, existsById, existsByUniqueProperties, findAll, findAllByIds, findAllByIdsToSet, findAllPage, findById, save, saveAll, updateById

Field Details

dao

private final IUserDAO dao

Constructor Details

UserServiceImpl

public UserServiceImpl()

Method Details

getDAO

protected IGenericDAO<User,UUID> getDAO()

Provides the DAO component used by inherited service operations.

Specified by:

getDAO in class GenericServiceImpl<User,UUID>

Returns:

the IGenericDAO implementation managing User persistence

getEntityName

protected String getEntityName()

Supplies a human-readable entity name used in exception messages.

Specified by:

getEntityName in class GenericServiceImpl<User,UUID>

Returns:

the name of the entity ("User")

register

@Transactional
public User register(User user)

Registers a new User in the system.

Specified by:

register in interface IUserService

Parameters:

user - the user to register; must not be null

Returns:

the saved User instance

Throws:

BadRequestException - if the provided user is null

existsByEmail

@Transactional
public boolean existsByEmail(String email)

Checks whether a user exists based on their email address.

Specified by:

existsByEmail in interface IUserService

Parameters:

email - the email to check; may be null or blank

Returns:

true if a user with the specified email exists; false otherwise

findByEmail

@Transactional
public User findByEmail(String email)

Retrieves a User by their email address.

Specified by:

findByEmail in interface IUserService

Parameters:

email - the email of the user to find; must not be null or blank

Returns:

the found User

Throws:

BadRequestException - if the email is null or blank

NotFoundException - if no user is found with the given email