Repos¶
Repositories in this library are unified interfaces to work with different types of standard repos:
- CRUD (create/read/update/delete)
- Key-value
- Key-values
CRUD¶
Default interface for any CRUD
-oriented realization of repositories. This type of repos separated to three interfaces:
CRUDRepo
extends both ReadCRUDRepo
and WriteCRUDRepo
.
CRUD repos do not support forced placing of data by id when data is not in repo. That means, that you can’t set data in repo by id which absent in the repository.
ReadCRUDRepo
¶
Contains read-only operations, such as getById, contains. This interface can’t be observed because of it does not suppose any mutable operation.
WriteCRUDRepo
¶
Contains write-only operations, such as create, update. This interface can be observed via its flows:
- newObjectsFlow for newely created objects
- updatedObjectsFlow for old updated objects
- deletedObjectsIdsFlow for deleted objects
Info
By default, all mutating operations consumes List
s of data (List<New>
for create
, List<Pair<Id, New>>
for update
and List<Id>
for delete),
but all they have their extension function-variations with one/two args (like create
with New
arg)
create
operation consumes list of New
variants of object and produces Registered
s list. In most cases, Registered
variant of object should have
Id
of registered object, but it is not required for repo.
update
operation consumes list of pairs with Id
and New
objects and produces list of Registered
objects.
deleteById
operation consumes list of Id
s and do not consume anything except of notifying via deletedObjectsIdsFlow
.