Crate sp_database

Expand description

The main database trait, allowing Substrate to store data persistently.

Modules

This implements Database as an in-memory hash map. commit is not atomic.

A series of changes to the database that can be committed atomically. They do not take effect until passed into Database::commit.

An alteration to the database.

An alteration to the database that references the data.

Wrap RocksDb database into a trait object that implements sp_database::Database

Call f with the value previously stored against key and return the result, or None if key is not currently in the database.

Call f with the preimage stored for hash and return the result, or None if no preimage is currently stored.

An identifier for a column.