Struct hdk::hash_path::shard::ShardStrategy

pub struct ShardStrategy(_, _);

A valid strategy for sharding requires both a width and a depth. At the moment sharding only works well for data that is reliably longer than width/depth. For example, sharding the username foo with width 4 doesn’t make sense. There is no magic padding or extending of the provided data to make up undersized shards. @todo stretch short shards out in a nice balanced way (append some bytes from the hash?)

Implementations

impl ShardStrategy

This impl block contains no items.

impl ShardStrategy as an immutable/read-only thingy.

Trait Implementations

impl Debug for ShardStrategy

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl FromStr for ShardStrategy

Attempt to parse a “width:depth#” shard out of a string. This function looks way scarier than it is. Each level of nesting is just handling a potential parse failure.

fn from_str(s: &str) -> Result<Self, Self::Err>

A shard strategy is parsed as “width:depth#…” at the start of a string.

type Err = ParseShardStrategyError

The associated error which can be returned from parsing.