Trait Config

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pub trait Config: Config + Config<RuntimeEvent: From<Event<Self>>> {
    type Balance: Balance;
    type Amount: Signed + TryInto<Self::Balance> + TryFrom<Self::Balance> + Parameter + Member + SimpleArithmetic + Default + Copy + MaybeSerializeDeserialize + MaxEncodedLen;
    type CurrencyId: Parameter + Member + Copy + MaybeSerializeDeserialize + Ord + TypeInfo + MaxEncodedLen;
    type WeightInfo: WeightInfo;
    type ExistentialDeposits: GetByKey<Self::CurrencyId, Self::Balance>;
    type CurrencyHooks: MutationHooks<Self::AccountId, Self::CurrencyId, Self::Balance>;
    type MaxLocks: Get<u32>;
    type MaxReserves: Get<u32>;
    type ReserveIdentifier: Parameter + Member + MaxEncodedLen + Ord + Copy;
    type DustRemovalWhitelist: Contains<Self::AccountId>;
}

Expand description

Configuration trait of this pallet.

The main purpose of this trait is to act as an interface between this pallet and the runtime in which it is embedded in. A type, function, or constant in this trait is essentially left to be configured by the runtime that includes this pallet.

Consequently, a runtime that wants to include this pallet must implement this trait.

Required Associated Types§

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type Balance: Balance

The balance type

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type Amount: Signed + TryInto<Self::Balance> + TryFrom<Self::Balance> + Parameter + Member + SimpleArithmetic + Default + Copy + MaybeSerializeDeserialize + MaxEncodedLen

The amount type, should be signed version of Balance

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type CurrencyId: Parameter + Member + Copy + MaybeSerializeDeserialize + Ord + TypeInfo + MaxEncodedLen

The currency ID type

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type WeightInfo: WeightInfo

Weight information for extrinsics in this module.

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type ExistentialDeposits: GetByKey<Self::CurrencyId, Self::Balance>

The minimum amount required to keep an account. It’s deprecated to config 0 as ED for any currency_id, zero ED will retain account even if its total is zero. Since accounts of orml_tokens are also used as providers of System::AccountInfo, zero ED may cause some problems.

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