程序包 org.shoulder.data.mybatis.template.service

类 BaseCacheableServiceImpl<MAPPER extends BaseMapper<ENTITY>,ENTITY extends BaseEntity<? extends Serializable>>

java.lang.Object

com.baomidou.mybatisplus.extension.service.impl.ServiceImpl<MAPPER,ENTITY>

org.shoulder.data.mybatis.template.service.BaseServiceImpl<MAPPER,ENTITY>

org.shoulder.data.mybatis.template.service.BaseCacheableServiceImpl<MAPPER,ENTITY>

类型参数:

MAPPER -

ENTITY -

所有已实现的接口:

com.baomidou.mybatisplus.extension.service.IService<ENTITY>, BaseCacheableService<ENTITY>, BaseService<ENTITY>

public abstract class BaseCacheableServiceImpl<MAPPER extends BaseMapper<ENTITY>,ENTITY extends BaseEntity<? extends Serializable>>
extends BaseServiceImpl<MAPPER,ENTITY>
implements BaseCacheableService<ENTITY>

带缓存的 Service

作者:

lym

字段概要

字段

修饰符和类型	字段	说明
protected Cache	cache
protected static int	MAX_BATCH_KEY_SIZE	一次查多个 key 时，最多多少个

从类继承的字段 com.baomidou.mybatisplus.extension.service.impl.ServiceImpl

baseMapper, entityClass, log, mapperClass

从接口继承的字段 com.baomidou.mybatisplus.extension.service.IService

DEFAULT_BATCH_SIZE

构造器概要

构造器

构造器	说明
BaseCacheableServiceImpl()

方法概要

修饰符和类型	方法	说明
protected void	buildCache(ENTITY model)
void	clearCache()	清理缓存
protected void	evictCache(ENTITY model)
protected void	evictCache(Serializable... ids)
protected void	evictCache(Collection<? extends Serializable> idList)
protected Object	fetchIdFromEntity(ENTITY model)
protected Serializable	generateCacheKey(Object keywords)	缓存key 构造器
ENTITY	getByCacheKey(Object key, Function<Object,Object> loader)	根据 key 查询缓存中存放的id 缓存不存在则根据loader加载并写入数据
ENTITY	getByIdFromCache(Serializable id)	查缓存，miss 则从db加载
Cache	getCache()
List<ENTITY>	loadByIds(Collection<? extends Serializable> ids, Function<Collection<? extends Serializable>,Collection<ENTITY>> loader)	可能会缓存穿透
void	refreshCache()	默认全量加载到缓存，量比较大，最好复写
boolean	removeById(Serializable id)	删除后，逐出缓存
boolean	removeByIds(Collection<? extends Serializable> idList)	删除后，逐出缓存
boolean	save(ENTITY model)	修改后，逐出缓存
boolean	saveBatch(Collection<ENTITY> entityList, int batchSize)	修改后，逐出缓存
boolean	saveOrUpdateBatch(Collection<ENTITY> entityList, int batchSize)	修改后，逐出缓存
void	setCache(Cache cache)
boolean	updateAllById(ENTITY model)	修改后，逐出缓存
boolean	updateBatchById(Collection<ENTITY> entityList, int batchSize)	修改后，逐出缓存
boolean	updateById(ENTITY model)	修改后，逐出缓存

从类继承的方法 org.shoulder.data.mybatis.template.service.BaseServiceImpl

saveOrUpdate

从类继承的方法 com.baomidou.mybatisplus.extension.service.impl.ServiceImpl

closeSqlSession, currentMapperClass, currentModelClass, executeBatch, executeBatch, executeBatch, getBaseMapper, getEntityClass, getMap, getObj, getOne, getSqlStatement, retBool, sqlSessionBatch, sqlStatement

从类继承的方法 java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

从接口继承的方法 org.shoulder.data.mybatis.template.service.BaseService

checkEntityAs, createPageQueryWrapper, getBaseMapper, getByBizId, handleBeforePageQuery, handlePageQueryResult, list, list, listByBizIds, lockByBizId, lockById, page, query, removeByBizId, removeByBizIds, saveOrUpdate, updateBatchByBizId, updateBatchByBizId, updateByBizId

从接口继承的方法 com.baomidou.mybatisplus.extension.service.IService

count, count, getById, getEntityClass, getMap, getObj, getOne, getOne, ktQuery, ktUpdate, lambdaQuery, lambdaUpdate, list, list, listByIds, listByMap, listMaps, listMaps, listObjs, listObjs, listObjs, listObjs, page, page, pageMaps, pageMaps, query, remove, removeByMap, saveBatch, saveOrUpdate, saveOrUpdateBatch, update, update, update, updateBatchById

字段详细资料

cache

@Autowired
protected Cache cache

MAX_BATCH_KEY_SIZE

protected static final int MAX_BATCH_KEY_SIZE

一次查多个 key 时，最多多少个

另请参阅:

常量字段值

构造器详细资料

BaseCacheableServiceImpl

public BaseCacheableServiceImpl()

方法详细资料

generateCacheKey

protected Serializable generateCacheKey(Object keywords)

缓存key 构造器

参数:

keywords - 通常为 id

返回:

缓存key构造器

getCache

public Cache getCache()

setCache

public void setCache(Cache cache)

getByIdFromCache

@Transactional(readOnly=true)
public ENTITY getByIdFromCache(Serializable id)

查缓存，miss 则从db加载

指定者:

getByIdFromCache 在接口中 BaseCacheableService<MAPPER extends BaseMapper<ENTITY>>

参数:

id - 主键

返回:

v

loadByIds

@Transactional(readOnly=true)
public List<ENTITY> loadByIds(@NonNull
                              Collection<? extends Serializable> ids,
                              Function<Collection<? extends Serializable>,Collection<ENTITY>> loader)

从接口复制的说明: BaseCacheableService

可能会缓存穿透

指定者:

loadByIds 在接口中 BaseCacheableService<MAPPER extends BaseMapper<ENTITY>>

参数:

ids - 主键id

loader - 回调

返回:

对象集合

getByCacheKey

@Transactional(readOnly=true)
public ENTITY getByCacheKey(Object key,
                            Function<Object,Object> loader)

从接口复制的说明: BaseCacheableService

根据 key 查询缓存中存放的id 缓存不存在则根据loader加载并写入数据

指定者:

getByCacheKey 在接口中 BaseCacheableService<MAPPER extends BaseMapper<ENTITY>>

参数:

key - 缓存key

loader - 数据加载器

返回:

对象

removeById

@Transactional(rollbackFor=java.lang.Exception.class)
public boolean removeById(Serializable id)

删除后，逐出缓存

指定者:

removeById 在接口中 com.baomidou.mybatisplus.extension.service.IService<MAPPER extends BaseMapper<ENTITY>>

removeByIds

@Transactional(rollbackFor=java.lang.Exception.class)
public boolean removeByIds(Collection<? extends Serializable> idList)

删除后，逐出缓存

指定者:

removeByIds 在接口中 com.baomidou.mybatisplus.extension.service.IService<MAPPER extends BaseMapper<ENTITY>>

save

@Transactional(rollbackFor=java.lang.Exception.class)
public boolean save(ENTITY model)

修改后，逐出缓存

指定者:

save 在接口中 com.baomidou.mybatisplus.extension.service.IService<MAPPER extends BaseMapper<ENTITY>>

覆盖:

save 在类中 BaseServiceImpl<MAPPER extends BaseMapper<ENTITY>,ENTITY extends BaseEntity<? extends Serializable>>

参数:

model - e

返回:

b

updateAllById

@Transactional(rollbackFor=java.lang.Exception.class)
public boolean updateAllById(ENTITY model)

修改后，逐出缓存

指定者:

updateAllById 在接口中 BaseService<MAPPER extends BaseMapper<ENTITY>>

覆盖:

updateAllById 在类中 BaseServiceImpl<MAPPER extends BaseMapper<ENTITY>,ENTITY extends BaseEntity<? extends Serializable>>

参数:

model - 实体

返回:

更新成功

updateById

@Transactional(rollbackFor=java.lang.Exception.class)
public boolean updateById(ENTITY model)

修改后，逐出缓存

指定者:

updateById 在接口中 com.baomidou.mybatisplus.extension.service.IService<MAPPER extends BaseMapper<ENTITY>>

saveBatch

@Transactional(rollbackFor=java.lang.Exception.class)
public boolean saveBatch(Collection<ENTITY> entityList,
                         int batchSize)

修改后，逐出缓存

指定者:

saveBatch 在接口中 com.baomidou.mybatisplus.extension.service.IService<MAPPER extends BaseMapper<ENTITY>>

覆盖:

saveBatch 在类中 com.baomidou.mybatisplus.extension.service.impl.ServiceImpl<MAPPER extends BaseMapper<ENTITY>,ENTITY extends BaseEntity<? extends Serializable>>

saveOrUpdateBatch

@Transactional(rollbackFor=java.lang.Exception.class)
public boolean saveOrUpdateBatch(Collection<ENTITY> entityList,
                                 int batchSize)

修改后，逐出缓存

指定者:

saveOrUpdateBatch 在接口中 com.baomidou.mybatisplus.extension.service.IService<MAPPER extends BaseMapper<ENTITY>>

覆盖:

saveOrUpdateBatch 在类中 com.baomidou.mybatisplus.extension.service.impl.ServiceImpl<MAPPER extends BaseMapper<ENTITY>,ENTITY extends BaseEntity<? extends Serializable>>

updateBatchById

@Transactional(rollbackFor=java.lang.Exception.class)
public boolean updateBatchById(Collection<ENTITY> entityList,
                               int batchSize)

修改后，逐出缓存

指定者:

updateBatchById 在接口中 com.baomidou.mybatisplus.extension.service.IService<MAPPER extends BaseMapper<ENTITY>>

覆盖:

updateBatchById 在类中 com.baomidou.mybatisplus.extension.service.impl.ServiceImpl<MAPPER extends BaseMapper<ENTITY>,ENTITY extends BaseEntity<? extends Serializable>>

refreshCache

public void refreshCache()

默认全量加载到缓存，量比较大，最好复写

指定者:

refreshCache 在接口中 BaseCacheableService<MAPPER extends BaseMapper<ENTITY>>

clearCache

public void clearCache()

从接口复制的说明: BaseCacheableService

清理缓存

指定者:

clearCache 在接口中 BaseCacheableService<MAPPER extends BaseMapper<ENTITY>>

evictCache

protected void evictCache(Serializable... ids)

evictCache

protected void evictCache(Collection<? extends Serializable> idList)

evictCache

protected void evictCache(ENTITY model)

buildCache

protected void buildCache(ENTITY model)

fetchIdFromEntity

protected Object fetchIdFromEntity(ENTITY model)