FriendService

All Methods Instance Methods Abstract Methods
限定符和类型	方法和说明
`void`	`attachClean(Friend instance)`
`void`	`attachDirty(Friend instance)`
`void`	`delete(Friend persistentInstance)`
`List`	`findAll()`
`List<Friend>`	`findByExample(Friend instance)`
`Friend`	`findById(Integer id)`
`List<Friend>`	`findByOther(Object other)`
`List`	`findByProperty(String propertyName, Object value)`
`List<Friend>`	`findBySelf(Object self)`
`Friend`	`merge(Friend detachedInstance)`
`void`	`save(Friend transientInstance)`

void delete(Friend persistentInstance)

List<Friend> findByExample(Friend instance)

List findByProperty(String propertyName,
                    Object value)

List<Friend> findByOther(Object other)

接口 FriendService