Java tutorial
/** * Copyright (c) 2014-2016 https://github.com/playersun * * Licensed under the Apache License, Version 2.0 (the "License"); */ package com.playersun.jbf.modules.sys.service; import java.util.Set; import org.springframework.stereotype.Service; import com.google.common.collect.Sets; import com.playersun.jbf.common.service.CrudService; import com.playersun.jbf.modules.sys.dao.GroupRelationDao; import com.playersun.jbf.modules.sys.entity.GroupRelation; /** * * @author PlayerSun * @date Nov 15, 2015 */ @Service public class GroupRelationService extends CrudService<GroupRelation> { private GroupRelationDao getGroupRelationRepository() { return (GroupRelationDao) crudDao; } public Set<Long> findGroupIds(Long userId, Set<Long> organizationIds) { return Sets.newHashSet(getGroupRelationRepository().findGroupIds(userId, organizationIds)); } }