Chatto/src/main/java/org/ros/chatto/repository/UserRepository.java

package org.ros.chatto.repository;

import java.util.List;
import java.util.Optional;

import org.ros.chatto.model.ChatUser;
import org.springframework.data.jpa.repository.JpaRepository;
import org.springframework.data.jpa.repository.Query;
import org.springframework.stereotype.Repository;

@Repository
public interface UserRepository extends JpaRepository<ChatUser, Long> {
	@Query("select cu from ChatUser cu where cu.userName = ?1")
	public Optional<ChatUser> findByUserName(String userName);

	@Query("select cu from ChatUser cu join fetch cu.userRoles where cu.userName = ?1")
	public ChatUser findByUserNameWithRole(String userName);

	@Query("select cu.userName from ChatUser cu where cu.userName != ?1")
	public List<String> findAllOtherUserNames(String userName);
}