Trait holochain::prelude::ChainItem

pub trait ChainItem: Clone + PartialEq<Self> + Eq + Debug + Send + Sync {
    type Hash: Into<HoloHash<Action>> + Clone + PartialEq<Self::Hash> + Eq + Ord + Hash + Debug + Send + Sync;

    fn seq(&self) -> u32;
    fn get_hash(&self) -> &Self::Hash;
    fn prev_hash(&self) -> Option<&Self::Hash>;
}

Abstraction over an item in a chain.

Required Associated Types

type Hash: Into<HoloHash<Action>> + Clone + PartialEq<Self::Hash> + Eq + Ord + Hash + Debug + Send + Sync

The type used to represent a hash of this item

Required Methods

fn seq(&self) -> u32

The sequence in the chain

fn get_hash(&self) -> &Self::Hash

The hash of this item

fn prev_hash(&self) -> Option<&Self::Hash>

The hash of the previous item

Implementors

impl ChainItem for TestChainItem

type Hash = TestChainHash

impl ChainItem for HoloHashed<Action>

type Hash = HoloHash<Action>

impl ChainItem for SignedHashed<Action>

type Hash = HoloHash<Action>