CODEWITHSUNDEEP
spring-bootkotlinspring-data-jpa
Denny Rustandi
Denny Rustandi

Reputation: 347

Spring boot UUID primary key entity doesn't show right id after created

So I have entity with UUID as primary key. After I create the entity in my service, the response return wrong id.

My Role entity

package denny.study.stock.entity

import denny.study.stock.util.converter.JsonToMapConverter
import org.hibernate.annotations.CreationTimestamp
import org.hibernate.annotations.GenericGenerator
import org.hibernate.annotations.Type
import org.hibernate.annotations.UpdateTimestamp
import java.util.*
import javax.persistence.*

@Entity
@Table(name = "roles")
class Role {

    @Id
    @GeneratedValue(generator = "uuid2")
    @GenericGenerator(name = "uuid2", strategy = "uuid2")
    @Column(name = "id", columnDefinition = "CHAR(36)")
    @Type(type = "uuid-char")
    var id: UUID = UUID.randomUUID()

    @Column
    var name: String = ""

    @Column
    var slug: String = ""

    @Column
    @Convert(converter = JsonToMapConverter::class)
    var permissions: MutableMap<String, Boolean>? = null

    @Column(name = "created_at")
    @CreationTimestamp
    var createdAt: Date = Date()

    @Column(name = "updated_at")
    @UpdateTimestamp
    var updatedAt: Date? = null

}

My store method in role service

    override fun store(roleRequest: RoleRequest): RoleResponse {
        val role = Role().apply {
            name = roleRequest.name
            slug = roleRequest.slug
            permissions = roleRequest.permissions
        }

        roleRepository.save(role)

        return RoleResponse(role)
    }

My Role response

package denny.study.stock.model.response.role

import denny.study.stock.entity.Role

class RoleResponse(role: Role) {

    var id = role.id

    var name = role.name

    var slug = role.slug

    var permissions = role.permissions

}

the json response return id "f95bddf6-eb22-49bb-b8e6-5eb819603fa9"

{
    "code": 200,
    "status": "OK",
    "data": {
        "id": "f95bddf6-eb22-49bb-b8e6-5eb819603fa9",
        "name": "Role 1",
        "slug": "role-1",
        "permissions": {
            "asd": true,
            "dsa": false
        }
    }
}

while in DB it stored as "87596692-7ee9-4ecb-a425-3b1372d901f4". Do you know why It return the wrong id? Thank you!

Upvotes: 1

Views: 2818

Answers (1)

Jo&#227;o Dias
Jo&#227;o Dias

Reputation: 17460

You are using @GeneratedValue annotation and also assigning UUID.randomUUID() to the id attribute. Either use one or the other, not both.

If you want the ID to be generated by the persistence provider then keep @GeneratedValue and remove @GenericGenerator (which is a Hibernate annotation) and UUID.randomUUID(). If you want to do that on your own then remove @GeneratedValue and @GenericGenerator.

Upvotes: 2

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