Delegate StateGetter<T>

An intermediary delegate for AccountStateGetter.

Namespace: Libplanet.Action

Assembly: Libplanet.dll

Syntax

public delegate IValue? StateGetter<T>(Address address, BlockHash? hashDigest, StateCompleter<T> stateCompleter)
    where T : IAction, new();

Parameters

Type	Name	Description
Address	address	The address of an account to read the state from.
Nullable<BlockHash>	hashDigest	The address of a block to read the state from.
StateCompleter<T>	stateCompleter	The StateCompleter<T> to use.

Returns

Type	Description
Nullable<IValue>	The account state if exists. Otherwise null.

Type Parameters

Name	Description
T	An IAction type. It should match to BlockChain<T>'s type parameter.

Remarks

If an account state at the given address has never been set by the evaluation up to the Block<T> with Hash of hashDigest, returns null instead of throwing an exception.