Hibernate and JPA #PreUpdate and #PrePersist not working - spring

Question

I am trying to run some code just before Updating or Saving. I have in my entity:
#Data
#EqualsAndHashCode(callSuper=false)
#Table(name="file_management", uniqueConstraints = { #UniqueConstraint(columnNames = {"name"})})
#Entity
public class FileManagement {
#Id
#GeneratedValue(strategy= GenerationType.IDENTITY)
private long id;
#Column(name="name")
private String name;
#Column(name = "SEARCH_STRING", length = 1000)
#Getter #Setter
private String searchString;
#PreUpdate
#PrePersist
void updateSearchString() {
final String fullSearchString = StringUtils.join(Arrays.asList(
name),
" ");
this.searchString = StringUtils.substring(fullSearchString, 0, 999);
}
}
I have in my FileManagementRepository:
#Transactional
#Modifying
#Query("UPDATE FileManagement SET name = :name WHERE id = :id")
public void updateFile(long id, String name);
#Transactional
#Modifying
#Query(value = "INSERT INTO file_management (name, filename, created_by, create_date, is_active, is_deleted) VALUES (:name, :filename, :createdBy, :createdDate, :isActive, :isDeleted)", nativeQuery = true)
public void createFileWithFilename(String name, String filename, String createdBy, Date createdDate, boolean isActive, boolean isDeleted);
and in my FileManagementService.java
public void updateFileWithFilename(String id, String name) {
fileManagementRepository.updateFile(Long.parseLong(id), name);
}
public boolean createFileWithFilename(String name, String filename, String createdBy, Date createdDate, boolean isActive, boolean isDeleted) {
fileManagementRepository.createFileWithFilename(name, filename, createdBy, createdDate, isActive, isDeleted);
return true;
}
But the problem is the updateSearchString() method is not called when I update or insert a new row. The search_string column is (null)
Please help. Thanks.

Answer 1

I am guessing that entities that are inserted or updated using native SQL or JPQL in this way will by pass the persistent context and persistence context will not manage them. However , #PreUpdate and #PrePersist only work for the entities that are managed by persistence context , so your #PreUpdate and #PrePersist will not execute for them.
I think you should insert and update the entities in a more JPA way which ensure persistence context will manage them:
#Service
public class FileManagementService{
#Autowired
private FileManagementRepository fileManagementRepository;
#Transactional
public void updateFileWithFilename(String id, String name) {
Optional<FileManagement> file= fileManagementRepository.findById(id);
if(file.isPresent()){
file.get().setName(name);
}else{
throw new RuntimeException("Record does not exist");
}
}
#Transactional
public void createFileWithFilename(String name, String filename, String createdBy, Date createdDate, boolean isActive, boolean isDeleted) {
FileManagement file= new FileManagement(name,fileName,........);
fileManagementRepository.save(file);
}
}