TCache-0.12.1: A Transactional cache with user-defined persistence
TCache is a transactional cache with configurable persitence. It allows conventional STM transactions for objects that syncronize with their user-defined storages. State in memory and into permanent storage is transactionally coherent.
It has interface defined for Amazon WS and Yesod Persistent backends defined in tcache-backend packages. Persistent is a multi-backend interface for SQL and non SQL databases such in Mongo-db
The package implements serializable STM references, access by key and by record field value, triggers, full text and field indexation, default serialization and a query language based on record fields
Since the STM references can be included in data structures and serialized, this is right for graph databases and other NoSQL databases.
- 12.0 space in index data in indexQuery.hs and IndexText.hs triggered errors in the AWS backend.
The space has been changed by
-
. So rename the "index *" files in the TCache folder in order to be recognized. - 11.0.0 added setIndexParsist to define persistence for indexes by type. started the addition of readDBRefs, readResources and so on for simultaneous read, writes and deletes of objects of the same type.
- 10.2.0 Added setDefaultPersist and modified the signature of setPersist in Data.TCache.DefaultPersistence. Fixed issues with ghc 7.6.3
- 10 version add memoization and a persistent and transactional collection/queue.
- 10.0.8 subversion add cachedByKeySTM
- 10.0.9 fixed an error in clearSyncChacheProc and SynWrite Asyncronous that checked the cache continuously
See Data.TCache for details
In this release:
Dropped Data.Hashtable (deprecated). Now it uses the package hashtables