IconScoreDatabase¶

class IconScoreDatabase(address: Address, context_db: ContextDatabase, prefix: bytes = None)¶

It is used in IconScore

IconScore can access its states only through IconScoreDatabase

delete(key: bytes)¶

Deletes the key/value pair for the specified key.

Parameters:	key – key to delete

get(key: bytes) → bytes¶

Gets the value for the specified key

Parameters:	key – key to retrieve
Returns:	value for the specified key, or None if not found

get_sub_db(prefix: bytes) → iconservice.database.db.IconScoreDatabase¶

Returns sub db with a prefix

Parameters:	prefix – The prefix used by this sub db.
Returns:	sub db

put(key: bytes, value: bytes)¶

Sets a value for the specified key.

Parameters:	key – key to set value – value to set