Package com.example.blogs.app.api.user.repository.adapter

Class UserRepositoryAdapterImpl

java.lang.Object

com.example.blogs.app.api.user.repository.adapter.UserRepositoryAdapterImpl

All Implemented Interfaces:

UserRepositoryAdapter

@Component
public class UserRepositoryAdapterImpl
extends Object
implements UserRepositoryAdapter

Translates database constraint violations and errors into domain-specific exceptions.

Constructor Summary

Constructors

Constructor	Description
UserRepositoryAdapterImpl()

Method Summary

Modifier and Type	Method	Description
UserEntity	findById(Long id)	Finds a user by their unique ID.
UserEntity	findByUsername(String username)	Finds a user by username and translates exceptions to domain-specific errors.
UserEntity	findByUsernameOrEmail(String usernameOrEmail)	Finds a user by username or email address.
UserEntity	save(CreateUserCommand command)	Persists a new user entity.
UserEntity	update(UserEntity userEntity)	Updates an existing user entity and translates exceptions to domain-specific errors.

Methods inherited from class java.lang.Object

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

Constructor Details

UserRepositoryAdapterImpl

public UserRepositoryAdapterImpl()

Method Details

save

public UserEntity save(CreateUserCommand command)

Description copied from interface: UserRepositoryAdapter

Persists a new user entity.

Specified by:

save in interface UserRepositoryAdapter

Parameters:

command - user creation details

Returns:

the saved user entity

findByUsernameOrEmail

public UserEntity findByUsernameOrEmail(String usernameOrEmail)

Description copied from interface: UserRepositoryAdapter

Finds a user by username or email address.

Specified by:

findByUsernameOrEmail in interface UserRepositoryAdapter

Parameters:

usernameOrEmail - the username or email to search for

Returns:

the matching user entity

findByUsername

public UserEntity findByUsername(String username)

Finds a user by username and translates exceptions to domain-specific errors.

Specified by:

findByUsername in interface UserRepositoryAdapter

Parameters:

username - the username to search for

Returns:

the matching user entity

Throws:

UserNotFoundException - if no user is found

FailedToFindUserException - for database errors

findById

public UserEntity findById(Long id)

Description copied from interface: UserRepositoryAdapter

Finds a user by their unique ID.

Specified by:

findById in interface UserRepositoryAdapter

Parameters:

id - the user ID to search for

Returns:

the matching user entity

update

public UserEntity update(UserEntity userEntity)

Updates an existing user entity and translates exceptions to domain-specific errors. Handles uniqueness constraint violations for username and email updates.

Specified by:

update in interface UserRepositoryAdapter

Parameters:

userEntity - the user entity to update with new values

Returns:

the updated user entity

Throws:

UsernameTakenException - if updated username is already taken

EmailTakenException - if updated email is already taken

FailedToUpdateUserException - for database update failures