Trait frame_support::traits::tokens::nonfungibles::InspectEnumerable

pub trait InspectEnumerable<AccountId>: Inspect<AccountId> {
    fn classes() -> Box<dyn Iterator<Item = Self::ClassId>>;
    fn instances(
        class: &Self::ClassId
    ) -> Box<dyn Iterator<Item = Self::InstanceId>>;
    fn owned(
        who: &AccountId
    ) -> Box<dyn Iterator<Item = (Self::ClassId, Self::InstanceId)>>;
    fn owned_in_class(
        class: &Self::ClassId, 
        who: &AccountId
    ) -> Box<dyn Iterator<Item = Self::InstanceId>>;
}

Interface for enumerating assets in existence or owned by a given account over many collections of NFTs.

Required methods

fn classes() -> Box<dyn Iterator<Item = Self::ClassId>>

Returns an iterator of the asset classes in existence.

fn instances(
    class: &Self::ClassId
) -> Box<dyn Iterator<Item = Self::InstanceId>>

Returns an iterator of the instances of an asset class in existence.

fn owned(
    who: &AccountId
) -> Box<dyn Iterator<Item = (Self::ClassId, Self::InstanceId)>>

Returns an iterator of the asset instances of all classes owned by who.

fn owned_in_class(
    class: &Self::ClassId,
    who: &AccountId
) -> Box<dyn Iterator<Item = Self::InstanceId>>

Returns an iterator of the asset instances of class owned by who.

Implementors