spring-data-couchbase - org.springframework.data.mapping.model.MappingException

Java SDK
1

Hi,

I am trying to execute the spring data couchbase example provided at http://projects.spring.io/spring-data-couchbase/#quick-start . But fails with below exception.
Exception in thread "main" org.springframework.data.mapping.model.MappingException: An ID property is needed, but not found on this entity. at org.springframework.data.couchbase.core.convert.MappingCouchbaseConverter.write(MappingCouchbaseConverter.java:316) at org.springframework.data.couchbase.core.convert.MappingCouchbaseConverter.write(MappingCouchbaseConverter.java:50) at org.springframework.data.couchbase.core.CouchbaseTemplate.save(CouchbaseTemplate.java:298) at org.springframework.data.couchbase.core.CouchbaseTemplate.save(CouchbaseTemplate.java:149) at org.springframework.data.couchbase.repository.support.SimpleCouchbaseRepository.save(SimpleCouchbaseRepository.java:82) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

Model for the same is

package com.spring.data.couchbase.user;

import org.springframework.data.annotation.Id;
import org.springframework.data.couchbase.core.mapping.Field;

public class User {

@Id
private String id;

public String getId() {
	return id;
}

public void setId(String id) {
	this.id = id;
}

@Field("lastName")
private String lastName;

public String getLastName() {
	return lastName;
}

public void setLastname(String lastName) {
	this.lastName = lastName;
}

public String getFirstName() {
	return firstName;
}

public void setFirstName(String firstName) {
	this.firstName = firstName;
}

@Field("firstName")
private String firstName;

@Override
public String toString() {
	return "User{" + "id='" + id + '\'' + ", firstName='" + firstName
			+ '\'' + ", lastName='" + lastName + '}';
}

}

I think Id is not getting set or assigned automatically. Any idea how to generate automatically?
or we have to create explicitly?

2

You need to set the ID of the document always and explicitly.

1 Like
3

Thank you. It helped.
I was using “javax.persistence.Id” and facing some issue (An ID property is needed).