CODEWITHSUNDEEP
javagoogle-app-engineobjectify
user1811826
user1811826

Reputation:

There must be an @Id field (String, Long, or long)

I've been trying to figure out how to solved this issue:

There must be an @Id field (String, Long, or long)

Although there is a @Id annoation in the class. I tried doing mvn clean, Eclipse project clean, there is no compile time errors. However when I run my application and try to persist a registered entity, I get this error.

I am using Objectify-4 and using the OfyLoader pattern.

CODE:

import java.util.List;
import com.googlecode.objectify.annotation.Entity;
import com.googlecode.objectify.annotation.Id;

@Entity
public class TestEntity {
    @Id
    private Long id;
    private List<String> strList;

    public TestEntity() {}

    public TestEntity(List<String> strList){
        this.setStrList(strList);
    }

    public Long getId() {
        return id;
    }
    public void setId(Long id) {
        this.id = id;
    }
    public List<String> getStrList() {
        return strList;
    }
    public void setStrList(List<String> strList) {
        this.strList = strList;
    }
}

Upvotes: 2

Views: 753

Answers (2)

matt burns
matt burns

Reputation: 25450

Make sure on objectify 4 is on your classpath and the only id import is :

import com.googlecode.objectify.annotation.Id;

Upvotes: 2

olyanren
olyanren

Reputation: 1458

You should firstly package then run your project. Because if you jetty run, for example, run operation cannot see annotations

Upvotes: 0

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