Java tutorial
/* * To change this license header, choose License Headers in Project Properties. * To change this template file, choose Tools | Templates * and open the template in the editor. */ package co.com.soinsoftware.altablero.controller; import co.com.soinsoftware.altablero.bll.GradeBLL; import co.com.soinsoftware.altablero.entity.GradeBO; import java.io.IOException; import java.util.ArrayList; import java.util.Collections; import java.util.List; import java.util.Set; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.stereotype.Service; /** * @author Carlos Rodriguez * @since 03/02/2016 * @version 1.0 */ @Service public class GradeController { @Autowired private GradeBLL gradeBLL; public List<GradeBO> findAll() throws IOException { final Set<GradeBO> gradeSet = gradeBLL.findAll(); final List<GradeBO> gradeList = (gradeSet != null) ? new ArrayList<>(gradeSet) : new ArrayList<>(); Collections.sort(gradeList); return gradeList; } }