Struct Map 

pub struct Map<'a, 'ctx> { /* private fields */ }

Read-write access to a raw-byte KV map, from WriteContext::map.

Writes are visible to later reads in the same transaction, and are applied only if the response status is 2xx.

Implementations

impl Map<'_, '_>

pub fn get(&mut self, key: &[u8]) -> BridgeResult<Option<Vec<u8>>>

Copy the value of key, or None if it is absent.

pub fn has(&mut self, key: &[u8]) -> BridgeResult<bool>

Check whether key is present.

pub fn put(&mut self, key: &[u8], value: &[u8]) -> BridgeResult<()>

Write value to key.

pub fn remove(&mut self, key: &[u8]) -> BridgeResult<()>

Remove key, if it is present.