Trait sp_blockchain::HeaderMetadata

source · [−]
pub trait HeaderMetadata<Block: BlockT> {
    type Error;
    fn header_metadata(
        &self, 
        hash: Block::Hash
    ) -> Result<CachedHeaderMetadata<Block>, Self::Error>;

    fn insert_header_metadata(
        &self, 
        hash: Block::Hash, 
        header_metadata: CachedHeaderMetadata<Block>
    );

    fn remove_header_metadata(&self, hash: Block::Hash);
}
Expand description

Handles header metadata: hash, number, parent hash, etc.

Associated Types

Error used in case the header metadata is not found.

Required methods

Implementors