Java Community | Help. Code. Learn.•9mo ago

Cannot set any value LocalDateTime in Entity of Spring Boot Example

I have a problem to set LocalDateTime.now to the entity of Spring Boot Example Here is the entity shown below

    @Getter
    @Setter
    @EqualsAndHashCode(callSuper = true)
    @SuperBuilder
    @NoArgsConstructor
    @AllArgsConstructor
    @Entity
    @Table(name = "PARK")
    public class ParkEntity extends BaseEntity {
    
       ...
    
       @Column(name = "CHECK_IN")
       private LocalDateTime checkIn;
    
    
       ....
    }

    @Getter
    @Setter
    @EqualsAndHashCode(callSuper = true)
    @SuperBuilder
    @NoArgsConstructor
    @AllArgsConstructor
    @Entity
    @Table(name = "PARK")
    public class ParkEntity extends BaseEntity {
    
       ...
    
       @Column(name = "CHECK_IN")
       private LocalDateTime checkIn;
    
    
       ....
    }

Here is the BaseEntity shown below

    @Getter
    @Setter
    @SuperBuilder
    @NoArgsConstructor
    @AllArgsConstructor
    @MappedSuperclass
    public abstract class BaseEntity {
    
        @Column(name = "CREATED_USER")
        protected String createdUser;
    
        @Column(name = "CREATED_AT")
        protected LocalDateTime createdAt;
    
        @Column(name = "UPDATED_USER")
        protected String updatedUser;
    
        @Column(name = "UPDATED_AT")
        protected LocalDateTime updatedAt;
    
        @PrePersist
    public void prePersist() {
        this.createdUser = getUsernameFromAuthentication();
        this.createdAt = LocalDateTime.now();
    }

    @PreUpdate
    public void preUpdate() {
        this.updatedUser = getUsernameFromAuthentication();
        this.updatedAt = LocalDateTime.now();
    }
    
    ...
    }

    @Getter
    @Setter
    @SuperBuilder
    @NoArgsConstructor
    @AllArgsConstructor
    @MappedSuperclass
    public abstract class BaseEntity {
    
        @Column(name = "CREATED_USER")
        protected String createdUser;
    
        @Column(name = "CREATED_AT")
        protected LocalDateTime createdAt;
    
        @Column(name = "UPDATED_USER")
        protected String updatedUser;
    
        @Column(name = "UPDATED_AT")
        protected LocalDateTime updatedAt;
    
        @PrePersist
    public void prePersist() {
        this.createdUser = getUsernameFromAuthentication();
        this.createdAt = LocalDateTime.now();
    }

    @PreUpdate
    public void preUpdate() {
        this.updatedUser = getUsernameFromAuthentication();
        this.updatedAt = LocalDateTime.now();
    }
    
    ...
    }

Here is the method shown below

    private Park parkMethod(....) {
            ParkEntity parkEntity = ....
            parkEntity.setCheckIn(LocalDateTime.now());
            ParkEntity savedPark = parkRepository.save(parkEntity);
            return parkEntityToParkMapper.map(savedPark);
    }

    private Park parkMethod(....) {
            ParkEntity parkEntity = ....
            parkEntity.setCheckIn(LocalDateTime.now());
            ParkEntity savedPark = parkRepository.save(parkEntity);
            return parkEntityToParkMapper.map(savedPark);
    }

I have also other entities extending from BaseEntity. I get null value in checkIn of savedPark . I have to manually set the LocalDateTime.now() instead of using @Builder.Default How can I do that?

3 Replies

JavaBot•9mo ago

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Unknown User•9mo ago

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JavaBot•9mo ago

💤 Post marked as dormant

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Cannot set any value LocalDateTime in Entity of Spring Boot Example