Couchbase query exception on runtime Unsupported parameter type for key: class com.couchbase.client.protocol.views.Query - spring-boot

Question

I am getting this exception every time i try to query a view on Couchbase DB from my spring boot application.
Unsupported parameter type for key: class com.couchbase.client.protocol.views.Query.
I was setting a string on setKey() method of Query class, got an exception. But then I checked the API and provided a json to setKey, still not working. Have searched a lot but could not get this to work.
I am sharing the code snippet in this post as well.
Application.properties
spring.couchbase.bucket.password=
spring.couchbase.bucket.name=default
spring.couchbase.bootstrap-hosts=127.0.0.1
spring.data.couchbase.repositories.enabled=true
PlayerRepository
public interface PlayerRepository extends CouchbaseRepository<Player, Integer>
{
#View(designDocument = "player", viewName = "all")
public List<Player> findAll();
#View(designDocument = "player", viewName = "by_Name")
public Player findByName(Query query);
#View(designDocument = "player", viewName = "by_TeamId")
public List<Player> findByTeamId(Query query);
}
Player.java
#Document
public class Player
{
#Id
int playerId;
#Field
String name;
#Field
String type;
#Field
String country;
#Field
String playingHand;
#Field
String era;
#Field
int teamId;
#Field
int odiCenturies;
#Field
int testCenturies;
public Player(){}
public Player(int playerId, String name, String type, String country, String playingHand, String era, int teamId,
int odiCenturies, int testCenturies) {
super();
this.playerId = playerId;
this.name = name;
this.type = type;
this.country = country;
this.playingHand = playingHand;
this.era = era;
this.teamId = teamId;
this.odiCenturies = odiCenturies;
this.testCenturies = testCenturies;
}
SpringBootApplication class
#SpringBootApplication
public class CricketTeamSelectionMain
{
/**
* #param args
*/
public static void main(String[] args)
{
SpringApplication.run(CricketTeamSelectionMain.class, args);
}
#Configuration
#EnableCouchbaseRepositories
public static class DBConfig extends AbstractCouchbaseConfiguration
{
#Value("${spring.couchbase.bucket.name}")
private String bucketName;
#Value("${spring.couchbase.bucket.password}")
private String password;
#Value("${spring.couchbase.bootstrap-hosts}")
private String ip;
#Override
public String getBucketName() {
return this.bucketName;
}
#Override
public String getBucketPassword() {
return this.password;
}
#Override
public List<String> getBootstrapHosts() {
return Arrays.asList(this.ip);
}
}
}
PlayerService class
package org.ups.fantasyCricket.service;
import java.net.URI;
import java.util.ArrayList;
import java.util.List;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.ups.fantasyCricket.CricketTeamSelectionMain.DBConfig;
import org.ups.fantasyCricket.Model.Player;
import org.ups.fantasyCricket.Repository.PlayerRepository;
import com.couchbase.client.CouchbaseClient;
import com.couchbase.client.protocol.views.Query;
import com.couchbase.client.protocol.views.View;
import com.couchbase.client.protocol.views.ViewResponse;
#Service
public class PlayerService
{
#Autowired
PlayerRepository playerRepo;
private CouchbaseClient client;
public List<Player> getAllPlayers()
{
List<Player> allPlayerLists = new ArrayList<Player>();
/*allPlayerLists.addAll((Collection<? extends Player>) playerRepo.findAll());
return allPlayerLists;*/
playerRepo.findAll().forEach(allPlayerLists::add);
return allPlayerLists;
}
public Player getPlayerByName(String name)
{
DBConfig dbCon = new DBConfig();
try
{
Query query = new Query();
query.setIncludeDocs(true);
query.setKey(name);
Player player = playerRepo.findByName(query);
return player;
}
catch(Exception e)
{
e.printStackTrace();
System.out.println(e.getMessage());
}
return null;
}
public String addPlayer(Player player)
{
playerRepo.save(player);
return "Success";
}
public String updatePlayer(Player player, int id)
{
playerRepo.save(player);
return "Success";
}
public List<Player> getPlayersByTeamId(int teamId)
{
List<Player> allPlayerLists = new ArrayList<Player>();
Query query = new Query();
query.setKey(String.valueOf(teamId));
playerRepo.findByTeamId(query).forEach(allPlayerLists::add);
return allPlayerLists;
}
public String addPlayers(List<Player> players)
{
playerRepo.save(players);
return "Success";
}
}
View by_Name on CouchBase DB
function (doc) {
emit(doc.name, doc);
}

Answer 1

Which version of spring-data-couchbase are you using? Starting with 2.x, the #Query annotation uses query derivation and you cannot use a ViewQuery as a parameter anymore... Have a look at the docs, on query derivation with a view.
You could probably use the CouchbaseTemplate to perform a manual query though.