Trait frame_support::storage::types::StorageNMapMetadata

pub trait StorageNMapMetadata {
    const MODIFIER: StorageEntryModifier;
    const NAME: &'static str;
    const DEFAULT: DefaultByteGetter;
    const HASHERS: &'static [StorageHasher];
}

Part of storage metadata for a storage n map.

NOTE: Generic hashers is supported.

Associated Constants

const MODIFIER: StorageEntryModifier

const NAME: &'static str

const DEFAULT: DefaultByteGetter

const HASHERS: &'static [StorageHasher]

Implementors

impl<Prefix, Key, Value, QueryKind, OnEmpty, MaxValues> StorageNMapMetadata for StorageNMap<Prefix, Key, Value, QueryKind, OnEmpty, MaxValues> where
    Prefix: StorageInstance,
    Key: KeyGenerator,
    Value: FullCodec,
    QueryKind: QueryKindTrait<Value, OnEmpty>,
    OnEmpty: Get<QueryKind::Query> + 'static,
    MaxValues: Get<Option<u32>>,