Trait MetadataWriter 

pub trait MetadataWriter: Send {
    // Required method
    fn write_metadata(
        &self,
        key: &str,
        value: Vec<u8>,
    ) -> Result<(), ProviderError>;

    // Provided methods
    fn delete_metadata(&self, _key: &str) -> Result<(), ProviderError> { ... }
    fn write_storage_settings(
        &self,
        settings: StorageSettings,
    ) -> Result<(), ProviderError> { ... }
    fn write_snap_attempt(
        &self,
        attempt: &SnapAttempt,
    ) -> Result<(), ProviderError> { ... }
}

Available on crate features db-api and provider only.

Client trait for writing node metadata to the database.

Required Methods

fn write_metadata(&self, key: &str, value: Vec<u8>) -> Result<(), ProviderError>

Write a metadata value

Provided Methods

fn delete_metadata(&self, _key: &str) -> Result<(), ProviderError>

Delete a metadata value.

fn write_storage_settings( &self, settings: StorageSettings, ) -> Result<(), ProviderError>

Write storage settings for this node

Be sure to update provider factory cache with StorageSettingsCache::set_storage_settings_cache.

fn write_snap_attempt(&self, attempt: &SnapAttempt) -> Result<(), ProviderError>

Writes the snap synchronization attempt that owns the downloaded state.

Dyn Compatibility

This trait is dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety".

Implementors

impl<TX, N> MetadataWriter for DatabaseProvider<TX, N>

where TX: DbTxMut, N: NodeTypes,