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

type GraphError: Error + Send + Sync + 'static[src]

type Graph[src]

type Adj[src]

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Required methods

fn get_graph<'txn>(
    &'txn self,
    db: &Self::Graph,
    key: &Vertex<ChangeId>,
    value: Option<&SerializedEdge>
) -> Result<Option<&'txn SerializedEdge>, TxnErr<Self::GraphError>>[src]

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

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

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

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

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

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

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

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

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Implementors

impl<T: LoadPage<Error = Error>> GraphTxnT for GenericTxn<T>[src]

type Graph = Db<Vertex<ChangeId>, SerializedEdge>

type GraphError = SanakirjaError

type Adj = Adj

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