Trait frame_support::storage::types::StorageMapMetadata

pub trait StorageMapMetadata {
    const MODIFIER: StorageEntryModifier;
    const NAME: &'static str;
    const DEFAULT: DefaultByteGetter;
    const HASHER: StorageHasher;
}

Part of storage metadata for a storage map.

NOTE: Generic hasher is supported.

Associated Constants

const MODIFIER: StorageEntryModifier

const NAME: &'static str

const DEFAULT: DefaultByteGetter

const HASHER: StorageHasher

Implementors

impl<Prefix, Hasher, Key, Value, QueryKind, OnEmpty, MaxValues> StorageMapMetadata for StorageMap<Prefix, Hasher, Key, Value, QueryKind, OnEmpty, MaxValues> where
    Prefix: StorageInstance,
    Hasher: StorageHasher,
    Key: FullCodec,
    Value: FullCodec,
    QueryKind: QueryKindTrait<Value, OnEmpty>,
    OnEmpty: Get<QueryKind::Query> + 'static,
    MaxValues: Get<Option<u32>>,