CODEWITHSUNDEEP
javamavenmicronautmicronaut-data
HienaKill
HienaKill

Reputation: 111

Micronaut Unable to implement Repository method: Repository.update(Object entity). No possible implementations found

Here's my stack:
- Micronaut 1.3.2
- Java 8
- Eclipse STS 4

Pom.xml excerpt:

<dependency>
            <groupId>io.micronaut.configuration</groupId>
            <artifactId>micronaut-jdbc-hikari</artifactId>
            <scope>compile</scope>
        </dependency>
        <dependency>
            <groupId>io.micronaut.data</groupId>
            <artifactId>micronaut-data-hibernate-jpa</artifactId>
        </dependency>
        <dependency>
            <groupId>io.micronaut.configuration</groupId>
            <artifactId>micronaut-hibernate-jpa</artifactId>
        </dependency>
        <dependency>
            <groupId>com.h2database</groupId>
            <artifactId>h2</artifactId>
            <scope>runtime</scope>
        </dependency>
<path>
    <groupId>io.micronaut.data</groupId>
    <artifactId>micronaut-data-processor</artifactId>
    <version>1.0.0.M1</version>
</path>

My Repository:

import io.micronaut.data.annotation.Repository;
import io.micronaut.data.repository.CrudRepository;

@Repository
public interface UsuarioRepository extends CrudRepository<UsuarioModel, Long> { }

My Service:

private UsuarioDTO atualizar(UsuarioDTO usuario) {
      UsuarioModel modelo = new UsuarioModel();
      modelo.setIdade(usuario.idade);
      modelo.setNick(usuario.nick);
      modelo.setNome(usuario.nome);
      modelo.setPassword(usuario.password);
      this.usuarioRepository.update(modelo);
      return usuario;
}

application.yml:

micronaut:
  application:
    name: micronaut-chatroom
  server: 
    cors:
      enabled: true
datasources:
  default:
    url: jdbc:h2:mem:devDb
    driverClassName: org.h2.Driver
    username: sa
    password: ''
    schema-generate: CREATE_DROP
    dialect: H2
jpa:
  default:
    entity-scan:
        packages: 'com.cr.model'

When I'm running Install maven command on my Micronaut project I get the error:

[ERROR] Failed to execute goal org.apache.maven.plugins:maven-compiler-plugin:3.7.0:compile (default-compile) on project micronaut-chatroom: Compilation failure [ERROR] Unable to implement Repository method: UsuarioRepository.update(Object entity). No possible implementations found.

Has someone been through it?

Thanks in advance!

EDIT

Here's my UsuarioModel class

@Entity(name = "Usuario")
@Table(name = "usuario")
public class UsuarioModel implements Serializable {
    /**
     * 
     */
    private static final long serialVersionUID = -7468837154917949190L;
    @Id
    @GeneratedValue
    private Long id;
    private String nome;
    private String nick;
    private String idade;
    private String password;

    @OneToMany
    private List<MensagemModel> mensagens;

    //Getter/Setters ommited

}

And also my MensagemModel class:

@Entity(name = "Mensagem")
@Table(name = "mensagem")
public class MensagemModel implements Serializable {
    /**
     * 
     */
    private static final long serialVersionUID = 7634793331670289187L;
    @Id
    @GeneratedValue
    private Long id;
    @CreationTimestamp
    private LocalDateTime data;
    private String conteudo;

    @ManyToOne
    @JoinColumn(name = "usuario_id")
    private UsuarioModel usuario;
    //Getter/Setter ommited
}

Upvotes: 5

Views: 7763

Answers (2)

Ashwin Dg
Ashwin Dg

Reputation: 11

I faced the same problem. The fix to the problem was to create getters and setters for the fields in the model.

Upvotes: 1

matteo nunziati
matteo nunziati

Reputation: 360

EDIT:

There are 2 possible sources for the @Id decorator in micronaut:

  • the "native" annotation package: io.micronaut.data.annotation
  • the jpa persistance package available as: jakarta.persistence-api dependency in maven

As you are decorating the class with @Entity I suppose you are using the latter set of decorators. or at least a mix of the 2 sources.

As basic debug step you could try removing any reference to javax.persistance and use native only decorators. So, as instance, do not use @Entity but rather @MappedEntity and so on.

simply comment out any import from javax.persistence.* and try with native io.micronaut.data.annotation*.

this would make clearer - I hope- if the issue lies in some twist of the annotation process.

OLD RUBBISH HAS BEEN DELETED - was Kotlin related

Upvotes: 3

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