Trait ReadableMultimapTable

pub trait ReadableMultimapTable<K: RedbKey + 'static, V: RedbKey + 'static>: Sealed {
    // Required methods
    fn get<'a>(
        &self,
        key: impl Borrow<K::SelfType<'a>>,
    ) -> Result<MultimapValue<'_, V>, StorageError>
       where K: 'a;
    fn range<'a, KR>(
        &self,
        range: impl RangeBounds<KR> + 'a,
    ) -> Result<MultimapRange<'_, K, V>, StorageError>
       where K: 'a,
             KR: Borrow<K::SelfType<'a>> + 'a;
    fn stats(&self) -> Result<TableStats, StorageError>;
    fn len(&self) -> Result<u64, StorageError>;
    fn is_empty(&self) -> Result<bool, StorageError>;

    // Provided method
    fn iter(&self) -> Result<MultimapRange<'_, K, V>, StorageError> { ... }
}

Required Methods

fn get<'a>( &self, key: impl Borrow<K::SelfType<'a>>, ) -> Result<MultimapValue<'_, V>, StorageError>

where K: 'a,

Returns an iterator over all values for the given key. Values are in ascending order.

fn range<'a, KR>( &self, range: impl RangeBounds<KR> + 'a, ) -> Result<MultimapRange<'_, K, V>, StorageError>

where K: 'a, KR: Borrow<K::SelfType<'a>> + 'a,

fn stats(&self) -> Result<TableStats, StorageError>

Retrieves information about storage usage for the table

fn len(&self) -> Result<u64, StorageError>

fn is_empty(&self) -> Result<bool, StorageError>

Provided Methods

fn iter(&self) -> Result<MultimapRange<'_, K, V>, StorageError>

Returns an double-ended iterator over all elements in the table. Values are in ascending order.

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety", so this trait is not object safe.

Implementors

impl<'db, 'txn, K: RedbKey + 'static, V: RedbKey + 'static> ReadableMultimapTable<K, V> for MultimapTable<'db, 'txn, K, V>

impl<'txn, K: RedbKey + 'static, V: RedbKey + 'static> ReadableMultimapTable<K, V> for ReadOnlyMultimapTable<'txn, K, V>