Bean validation annotation (@Size)not working properly-CodePudding

import org.javers.core.metamodel.annotation.DiffIgnore;

import javax.persistence.*;
import javax.validation.constraints.Max;
import javax.validation.constraints.Size;
import java.util.Set;


@NoArgsConstructor
@Getter
@Setter
@Entity
@Table(name = "project")
public class ProjectComponent extends AbstractEntity {

    @Id
    @Column(name = "id", nullable = false, length = 128)
    private String id;

    @Column(name = "project_name", nullable = false)
    private String projectName;

    @Column(name = "name", nullable = false, columnDefinition = "nvarchar")
    @Size(max = 512, message
            = "Cannot exceed 512 characters")
    private String name;
}

@Size(max=512) I used this in the entity field but whenever I crossed size 512 then this thing should stop on that particular field should not persist into DB and that means should not throw an exception from DB.

CodePudding user response：

As ProjectComponent is an Entity class, I recommend you should use @Length annotation or add length attribute in @Column annotation. I found this article online which explains the difference between these @Size & @Length annotations. Please take a look. Difference between @Size & @Length.

CodePudding user response：

Maybe you should use @Size and @Valid together.

CodePudding user response：

@PrePersist
@PostLoad
void markNotNew() {
    Validator validator = Validation.buildDefaultValidatorFactory().getValidator();
    Set<ConstraintViolation<AbstractEntity>> constraintViolations =
            validator.validate( this );
    constraintViolations.size();
    if(!constraintViolations.isEmpty()) {
        throw new ResourceNotFoundException(constraintViolations.stream().map(ConstraintViolation::getMessage).collect(Collectors.joining()));
    }
        this.isNew = false;
}

got the solution thanks friends.