ActiveWebSocketUserRepository.java

package ch.rasc.wampspring.demo.security.data;

import java.util.List;

import org.springframework.data.jpa.repository.Query;
import org.springframework.data.repository.CrudRepository;

public interface ActiveWebSocketUserRepository
		extends CrudRepository<ActiveWebSocketUser, String> {

	@Query("select DISTINCT(u.username) from ActiveWebSocketUser u where u.username != ?#{principal?.username}")
	List<String> findAllActiveUsers();
}