Trait TreeReader

Source

pub trait TreeReader {
    // Required methods
    fn root_info(&self) -> Result<(PageId, MerkleHash)>;
    fn page_digest(&self, page_id: PageId) -> Result<PageDigest>;
    fn leaf_entries(&self, page_id: PageId) -> Result<Vec<DiffEntry>>;

    // Provided method
    fn subtree_entries(&self, page_id: PageId) -> Result<Vec<DiffEntry>> { ... }
}

Expand description

Abstraction for reading tree structure during diff.

For local databases, LocalTreeReader reads from TxnManager directly. For remote databases, the transport layer implements this via message exchange.