Package org.example.crmedu.domain.service.subject

Class SubjectServiceImpl

java.lang.Object

org.example.crmedu.domain.service.subject.SubjectServiceImpl

All Implemented Interfaces:

SubjectService

@Service
public class SubjectServiceImpl
extends Object
implements SubjectService

Implementation of the SubjectService interface. Provides business logic for managing Subject entities.

Constructor Summary

Constructors

Constructor	Description
SubjectServiceImpl()

Method Summary

Modifier and Type	Method	Description
Subject	create(Subject subject)	Creates a new subject.
void	delete(Long id)	Deletes a subject by its unique identifier.
Page<Subject>	findAll(int pageNumber, int pageSize)	Retrieves a paginated list of subjects.
Subject	findById(Long id)	Retrieves a subject by its unique identifier.
void	update(Subject subject, Long id)	Updates an existing subject

Methods inherited from class java.lang.Object

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

Constructor Details

SubjectServiceImpl

public SubjectServiceImpl()

Method Details

create

public Subject create(Subject subject)

Description copied from interface: SubjectService

Creates a new subject.

Specified by:

create in interface SubjectService

Parameters:

subject - the subject to create

Returns:

the created Subject

findById

@Transactional
public Subject findById(Long id)

Description copied from interface: SubjectService

Retrieves a subject by its unique identifier.

Specified by:

findById in interface SubjectService

Parameters:

id - the unique identifier of the subject

Returns:

the found Subject

findAll

public Page<Subject> findAll(int pageNumber,
 int pageSize)

Description copied from interface: SubjectService

Retrieves a paginated list of subjects.

Specified by:

findAll in interface SubjectService

Parameters:

pageNumber - the page number (starting from 0)

pageSize - the number of subjects per page

Returns:

a Page containing the requested subjects

update

@Transactional
public void update(Subject subject,
 Long id)

Description copied from interface: SubjectService

Updates an existing subject

Specified by:

update in interface SubjectService

Parameters:

subject - the updated subject data

id - the unique identifier of the subject to update

delete

public void delete(Long id)

Description copied from interface: SubjectService

Deletes a subject by its unique identifier.

Specified by:

delete in interface SubjectService

Parameters:

id - the unique identifier of the subject to delete