ALife.Creatur.Database

Database interface for the Créatúr framework.

Documentation

class Database d where

A database offering storage and retrieval for records.

Associated Types

type DBRecord d

Methods

keys :: StateT d IO [String]

Get a list of all keys in the database.

lookup :: Serialize (DBRecord d) => String -> StateT d IO (Either String (DBRecord d))

Read a record from the database.

store :: (Record (DBRecord d), Serialize (DBRecord d)) => DBRecord d -> StateT d IO ()

Write a record to the database. If an agent with the same name already exists, it will be overwritten.

delete :: Serialize (DBRecord d) => String -> StateT d IO ()

Remove a record from the database. The database may archive records rather than simply deleting them.

Instances

Database (FSDatabase r)

class Record r where

Methods

key :: r -> String