Trait libpijul::pristine::GraphTxnT[−][src]

pub trait GraphTxnT: Sized {
    type GraphError: Error + Send + Sync + 'static;
    type Graph;
    type Adj;
    fn get_graph<'txn>(
        &'txn self, 
        db: &Self::Graph, 
        key: &Vertex<ChangeId>, 
        value: Option<&SerializedEdge>
    ) -> Result<Option<&'txn SerializedEdge>, TxnErr<Self::GraphError>>;

    fn get_external(
        &self, 
        p: &ChangeId
    ) -> Result<Option<&SerializedHash>, TxnErr<Self::GraphError>>;

    fn get_internal(
        &self, 
        p: &SerializedHash
    ) -> Result<Option<&ChangeId>, TxnErr<Self::GraphError>>;

    fn init_adj(
        &self, 
        g: &Self::Graph, 
        v: Vertex<ChangeId>, 
        dest: Position<ChangeId>, 
        min: EdgeFlags, 
        max: EdgeFlags
    ) -> Result<Self::Adj, TxnErr<Self::GraphError>>;

    fn next_adj<'a>(
        &'a self, 
        g: &Self::Graph, 
        a: &mut Self::Adj
    ) -> Option<Result<&'a SerializedEdge, TxnErr<Self::GraphError>>>;

    fn find_block<'a>(
        &'a self, 
        graph: &Self::Graph, 
        p: Position<ChangeId>
    ) -> Result<&'a Vertex<ChangeId>, BlockError<Self::GraphError>>;

    fn find_block_end<'a>(
        &'a self, 
        graph: &Self::Graph, 
        p: Position<ChangeId>
    ) -> Result<&'a Vertex<ChangeId>, BlockError<Self::GraphError>>;
}

Associated Types

Required methods

Returns the external hash of an internal change identifier, if the change is known.

Returns the internal change identifier of change with external hash hash, if the change is known.

Implementors