Trait bonsaidb_core::key::KeyEncoding

pub trait KeyEncoding<K = Self>: Send + Sync {
    type Error: AnyError;

    const LENGTH: Option<usize>;

    // Required methods
    fn describe<Visitor>(visitor: &mut Visitor)
       where Visitor: KeyVisitor;
    fn as_ord_bytes(&self) -> Result<Cow<'_, [u8]>, Self::Error>;
}

A trait that enables a type to convert itself into a memcmp-compatible sequence of bytes.

Required Associated Types

type Error: AnyError

The error type that can be produced by either serialization or deserialization.

Required Associated Constants

const LENGTH: Option<usize>

The size of the key, if constant. If this type doesn’t produce the same number of bytes for each value, this should be None.

Required Methods

fn describe<Visitor>(visitor: &mut Visitor)

where Visitor: KeyVisitor,

Describes this type by invoking functions on visitor describing the key being encoded.

See the KeyVisitor trait for more information.

KeyDescription::for_key()/KeyDescription::for_encoding() are built-in functions

fn as_ord_bytes(&self) -> Result<Cow<'_, [u8]>, Self::Error>

Convert self into a Cow<'_, [u8]> containing bytes that are able to be compared via memcmp in a way that is comptaible with its own Ord implementation.

Object Safety

This trait is not object safe.

Implementations on Foreign Types

impl KeyEncoding for bool

type Error = Infallible

const LENGTH: Option<usize> = _

fn describe<Visitor>(visitor: &mut Visitor)

where Visitor: KeyVisitor,

fn as_ord_bytes(&self) -> Result<Cow<'_, [u8]>, Self::Error>

impl KeyEncoding for i8

type Error = IncorrectByteLength

const LENGTH: Option<usize> = _

fn describe<Visitor>(visitor: &mut Visitor)

where Visitor: KeyVisitor,

fn as_ord_bytes(&self) -> Result<Cow<'_, [u8]>, Self::Error>

impl KeyEncoding for i16

type Error = IncorrectByteLength

const LENGTH: Option<usize> = _

fn describe<Visitor>(visitor: &mut Visitor)

where Visitor: KeyVisitor,

fn as_ord_bytes(&self) -> Result<Cow<'_, [u8]>, Self::Error>

impl KeyEncoding for i32

type Error = IncorrectByteLength

const LENGTH: Option<usize> = _

fn describe<Visitor>(visitor: &mut Visitor)

where Visitor: KeyVisitor,

fn as_ord_bytes(&self) -> Result<Cow<'_, [u8]>, Self::Error>

impl KeyEncoding for i64

type Error = IncorrectByteLength

const LENGTH: Option<usize> = _

fn describe<Visitor>(visitor: &mut Visitor)

where Visitor: KeyVisitor,

fn as_ord_bytes(&self) -> Result<Cow<'_, [u8]>, Self::Error>

impl KeyEncoding for i128

type Error = IncorrectByteLength

const LENGTH: Option<usize> = _

fn describe<Visitor>(visitor: &mut Visitor)

where Visitor: KeyVisitor,

fn as_ord_bytes(&self) -> Result<Cow<'_, [u8]>, Self::Error>

impl KeyEncoding for isize

type Error = Error

const LENGTH: Option<usize> = None

fn describe<Visitor>(visitor: &mut Visitor)

where Visitor: KeyVisitor,

fn as_ord_bytes(&self) -> Result<Cow<'_, [u8]>, Self::Error>

impl KeyEncoding for u8

type Error = IncorrectByteLength

const LENGTH: Option<usize> = _

fn describe<Visitor>(visitor: &mut Visitor)

where Visitor: KeyVisitor,

fn as_ord_bytes(&self) -> Result<Cow<'_, [u8]>, Self::Error>

impl KeyEncoding for u16

type Error = IncorrectByteLength

const LENGTH: Option<usize> = _

fn describe<Visitor>(visitor: &mut Visitor)

where Visitor: KeyVisitor,

fn as_ord_bytes(&self) -> Result<Cow<'_, [u8]>, Self::Error>

impl KeyEncoding for u32

type Error = IncorrectByteLength

const LENGTH: Option<usize> = _

fn describe<Visitor>(visitor: &mut Visitor)

where Visitor: KeyVisitor,

fn as_ord_bytes(&self) -> Result<Cow<'_, [u8]>, Self::Error>

impl KeyEncoding for u64

type Error = IncorrectByteLength

const LENGTH: Option<usize> = _

fn describe<Visitor>(visitor: &mut Visitor)

where Visitor: KeyVisitor,

fn as_ord_bytes(&self) -> Result<Cow<'_, [u8]>, Self::Error>

impl KeyEncoding for u128

type Error = IncorrectByteLength

const LENGTH: Option<usize> = _

fn describe<Visitor>(visitor: &mut Visitor)

where Visitor: KeyVisitor,

fn as_ord_bytes(&self) -> Result<Cow<'_, [u8]>, Self::Error>

impl KeyEncoding for ()

type Error = Infallible

const LENGTH: Option<usize> = _

fn describe<Visitor>(visitor: &mut Visitor)

where Visitor: KeyVisitor,

fn as_ord_bytes(&self) -> Result<Cow<'_, [u8]>, Self::Error>

impl KeyEncoding for usize

type Error = Error

const LENGTH: Option<Self> = None

fn describe<Visitor>(visitor: &mut Visitor)

where Visitor: KeyVisitor,

fn as_ord_bytes(&self) -> Result<Cow<'_, [u8]>, Self::Error>

impl KeyEncoding for String

type Error = FromUtf8Error

const LENGTH: Option<usize> = None

fn describe<Visitor>(visitor: &mut Visitor)

where Visitor: KeyVisitor,

fn as_ord_bytes(&self) -> Result<Cow<'_, [u8]>, Self::Error>

impl KeyEncoding for Vec<u8>

type Error = Infallible

const LENGTH: Option<usize> = None

fn describe<Visitor>(visitor: &mut Visitor)

where Visitor: KeyVisitor,

fn as_ord_bytes(&self) -> Result<Cow<'_, [u8]>, Self::Error>

impl KeyEncoding for NonZeroI8

type Error = NonZeroKeyError

const LENGTH: Option<usize> = _

fn describe<Visitor>(visitor: &mut Visitor)

where Visitor: KeyVisitor,

fn as_ord_bytes(&self) -> Result<Cow<'_, [u8]>, Self::Error>

impl KeyEncoding for NonZeroI16

type Error = NonZeroKeyError

const LENGTH: Option<usize> = _

fn describe<Visitor>(visitor: &mut Visitor)

where Visitor: KeyVisitor,

fn as_ord_bytes(&self) -> Result<Cow<'_, [u8]>, Self::Error>

impl KeyEncoding for NonZeroI32

type Error = NonZeroKeyError

const LENGTH: Option<usize> = _

fn describe<Visitor>(visitor: &mut Visitor)

where Visitor: KeyVisitor,

fn as_ord_bytes(&self) -> Result<Cow<'_, [u8]>, Self::Error>

impl KeyEncoding for NonZeroI64

type Error = NonZeroKeyError

const LENGTH: Option<usize> = _

fn describe<Visitor>(visitor: &mut Visitor)

where Visitor: KeyVisitor,

fn as_ord_bytes(&self) -> Result<Cow<'_, [u8]>, Self::Error>

impl KeyEncoding for NonZeroI128

type Error = NonZeroKeyError

const LENGTH: Option<usize> = _

fn describe<Visitor>(visitor: &mut Visitor)

where Visitor: KeyVisitor,

fn as_ord_bytes(&self) -> Result<Cow<'_, [u8]>, Self::Error>

impl KeyEncoding for NonZeroIsize

type Error = Error

const LENGTH: Option<usize> = None

fn describe<Visitor>(visitor: &mut Visitor)

where Visitor: KeyVisitor,

fn as_ord_bytes(&self) -> Result<Cow<'_, [u8]>, Self::Error>

impl KeyEncoding for NonZeroU8

type Error = NonZeroKeyError

const LENGTH: Option<usize> = _

fn describe<Visitor>(visitor: &mut Visitor)

where Visitor: KeyVisitor,

fn as_ord_bytes(&self) -> Result<Cow<'_, [u8]>, Self::Error>

impl KeyEncoding for NonZeroU16

type Error = NonZeroKeyError

const LENGTH: Option<usize> = _

fn describe<Visitor>(visitor: &mut Visitor)

where Visitor: KeyVisitor,

fn as_ord_bytes(&self) -> Result<Cow<'_, [u8]>, Self::Error>

impl KeyEncoding for NonZeroU32

type Error = NonZeroKeyError

const LENGTH: Option<usize> = _

fn describe<Visitor>(visitor: &mut Visitor)

where Visitor: KeyVisitor,

fn as_ord_bytes(&self) -> Result<Cow<'_, [u8]>, Self::Error>

impl KeyEncoding for NonZeroU64

type Error = NonZeroKeyError

const LENGTH: Option<usize> = _

fn describe<Visitor>(visitor: &mut Visitor)

where Visitor: KeyVisitor,

fn as_ord_bytes(&self) -> Result<Cow<'_, [u8]>, Self::Error>

impl KeyEncoding for NonZeroU128

type Error = NonZeroKeyError

const LENGTH: Option<usize> = _

fn describe<Visitor>(visitor: &mut Visitor)

where Visitor: KeyVisitor,

fn as_ord_bytes(&self) -> Result<Cow<'_, [u8]>, Self::Error>

impl KeyEncoding for NonZeroUsize

type Error = Error

const LENGTH: Option<usize> = None

fn describe<Visitor>(visitor: &mut Visitor)

where Visitor: KeyVisitor,

fn as_ord_bytes(&self) -> Result<Cow<'_, [u8]>, Self::Error>

impl KeyEncoding for Duration

type Error = TimeError

const LENGTH: Option<usize> = None

fn describe<Visitor>(visitor: &mut Visitor)

where Visitor: KeyVisitor,

fn as_ord_bytes(&self) -> Result<Cow<'_, [u8]>, Self::Error>

impl KeyEncoding for SystemTime

type Error = TimeError

const LENGTH: Option<usize> = None

fn describe<Visitor>(visitor: &mut Visitor)

where Visitor: KeyVisitor,

fn as_ord_bytes(&self) -> Result<Cow<'_, [u8]>, Self::Error>

impl KeyEncoding for Uuid

type Error = TryFromSliceError

const LENGTH: Option<usize> = _

fn describe<Visitor>(visitor: &mut Visitor)

where Visitor: KeyVisitor,

fn as_ord_bytes(&self) -> Result<Cow<'_, [u8]>, Self::Error>

impl KeyEncoding for Bytes

type Error = Infallible

const LENGTH: Option<usize> = None

fn describe<Visitor>(visitor: &mut Visitor)

where Visitor: KeyVisitor,

fn as_ord_bytes(&self) -> Result<Cow<'_, [u8]>, Self::Error>

impl KeyEncoding for Signed

type Error = Error

const LENGTH: Option<usize> = None

fn describe<Visitor>(visitor: &mut Visitor)

where Visitor: KeyVisitor,

fn as_ord_bytes(&self) -> Result<Cow<'_, [u8]>, Self::Error>

impl KeyEncoding for Unsigned

type Error = Error

const LENGTH: Option<usize> = None

fn describe<Visitor>(visitor: &mut Visitor)

where Visitor: KeyVisitor,

fn as_ord_bytes(&self) -> Result<Cow<'_, [u8]>, Self::Error>

impl KeyEncoding<String> for str

type Error = FromUtf8Error

const LENGTH: Option<usize> = None

fn describe<Visitor>(visitor: &mut Visitor)

where Visitor: KeyVisitor,

fn as_ord_bytes(&self) -> Result<Cow<'_, [u8]>, Self::Error>

impl<'a, 'k, K, KE> KeyEncoding<K> for &'a KE

where KE: KeyEncoding<K> + ?Sized + PartialEq, K: Key<'k> + PartialEq<KE>,

type Error = <KE as KeyEncoding<K>>::Error

const LENGTH: Option<usize> = K::LENGTH

fn describe<Visitor>(visitor: &mut Visitor)

where Visitor: KeyVisitor,

fn as_ord_bytes(&self) -> Result<Cow<'_, [u8]>, Self::Error>

impl<'k> KeyEncoding for Cow<'k, str>

type Error = Utf8Error

const LENGTH: Option<usize> = None

fn describe<Visitor>(visitor: &mut Visitor)

where Visitor: KeyVisitor,

fn as_ord_bytes(&self) -> Result<Cow<'_, [u8]>, Self::Error>

impl<'k> KeyEncoding for ArcBytes<'k>

type Error = Infallible

const LENGTH: Option<usize> = None

fn describe<Visitor>(visitor: &mut Visitor)

where Visitor: KeyVisitor,

fn as_ord_bytes(&self) -> Result<Cow<'_, [u8]>, Self::Error>

impl<'k> KeyEncoding for CowBytes<'k>

type Error = Infallible

const LENGTH: Option<usize> = None

fn describe<Visitor>(visitor: &mut Visitor)

where Visitor: KeyVisitor,

fn as_ord_bytes(&self) -> Result<Cow<'_, [u8]>, Self::Error>

impl<'k> KeyEncoding<Cow<'k, [u8]>> for &'k [u8]

type Error = Infallible

const LENGTH: Option<usize> = None

fn describe<Visitor>(visitor: &mut Visitor)

where Visitor: KeyVisitor,

fn as_ord_bytes(&self) -> Result<Cow<'_, [u8]>, Self::Error>

impl<'k> KeyEncoding<Vec<u8>> for &'k [u8]

type Error = Infallible

const LENGTH: Option<usize> = None

fn describe<Visitor>(visitor: &mut Visitor)

where Visitor: KeyVisitor,

fn as_ord_bytes(&self) -> Result<Cow<'_, [u8]>, Self::Error>

impl<'k> KeyEncoding<ArcBytes<'k>> for &'k [u8]

type Error = Infallible

const LENGTH: Option<usize> = None

fn describe<Visitor>(visitor: &mut Visitor)

where Visitor: KeyVisitor,

fn as_ord_bytes(&self) -> Result<Cow<'_, [u8]>, Self::Error>

impl<'k> KeyEncoding<Bytes> for &'k [u8]

type Error = Infallible

const LENGTH: Option<usize> = None

fn describe<Visitor>(visitor: &mut Visitor)

where Visitor: KeyVisitor,

fn as_ord_bytes(&self) -> Result<Cow<'_, [u8]>, Self::Error>

impl<'k> KeyEncoding<CowBytes<'k>> for &'k [u8]

type Error = Infallible

const LENGTH: Option<usize> = None

fn describe<Visitor>(visitor: &mut Visitor)

where Visitor: KeyVisitor,

fn as_ord_bytes(&self) -> Result<Cow<'_, [u8]>, Self::Error>

impl<'k, 'ke> KeyEncoding<Cow<'ke, [u8]>> for Cow<'k, [u8]>

type Error = Infallible

const LENGTH: Option<usize> = None

fn describe<Visitor>(visitor: &mut Visitor)

where Visitor: KeyVisitor,

fn as_ord_bytes(&self) -> Result<Cow<'_, [u8]>, Self::Error>

impl<'k, T, E, TBorrowed, EBorrowed> KeyEncoding<Result<T, E>> for Result<TBorrowed, EBorrowed>

where TBorrowed: KeyEncoding<T>, T: Key<'k, Error = TBorrowed::Error>, EBorrowed: KeyEncoding<E, Error = TBorrowed::Error>, E: Key<'k, Error = TBorrowed::Error>,

type Error = <TBorrowed as KeyEncoding<T>>::Error

const LENGTH: Option<usize> = None

fn describe<Visitor>(visitor: &mut Visitor)

where Visitor: KeyVisitor,

fn as_ord_bytes(&self) -> Result<Cow<'_, [u8]>, Self::Error>

impl<'k, T, K> KeyEncoding<Option<K>> for Option<T>

where T: KeyEncoding<K>, K: Key<'k>,

type Error = <T as KeyEncoding<K>>::Error

const LENGTH: Option<usize> = _

fn describe<Visitor>(visitor: &mut Visitor)

where Visitor: KeyVisitor,

fn as_ord_bytes(&self) -> Result<Cow<'_, [u8]>, Self::Error>

impl<T1> KeyEncoding for (T1,)

where T1: for<'k> Key<'k>,

type Error = CompositeKeyError

const LENGTH: Option<usize> = _

fn describe<Visitor>(visitor: &mut Visitor)

where Visitor: KeyVisitor,

fn as_ord_bytes(&self) -> Result<Cow<'_, [u8]>, Self::Error>

impl<T1, T2> KeyEncoding for (T1, T2)

where T1: for<'k> Key<'k>, T2: for<'k> Key<'k>,

type Error = CompositeKeyError

const LENGTH: Option<usize> = _

fn describe<Visitor>(visitor: &mut Visitor)

where Visitor: KeyVisitor,

fn as_ord_bytes(&self) -> Result<Cow<'_, [u8]>, Self::Error>

impl<T1, T2, T3> KeyEncoding for (T1, T2, T3)

where T1: for<'k> Key<'k>, T2: for<'k> Key<'k>, T3: for<'k> Key<'k>,

type Error = CompositeKeyError

const LENGTH: Option<usize> = _

fn describe<Visitor>(visitor: &mut Visitor)

where Visitor: KeyVisitor,

fn as_ord_bytes(&self) -> Result<Cow<'_, [u8]>, Self::Error>

impl<T1, T2, T3, T4> KeyEncoding for (T1, T2, T3, T4)

where T1: for<'k> Key<'k>, T2: for<'k> Key<'k>, T3: for<'k> Key<'k>, T4: for<'k> Key<'k>,

type Error = CompositeKeyError

const LENGTH: Option<usize> = _

fn describe<Visitor>(visitor: &mut Visitor)

where Visitor: KeyVisitor,

fn as_ord_bytes(&self) -> Result<Cow<'_, [u8]>, Self::Error>

impl<T1, T2, T3, T4, T5> KeyEncoding for (T1, T2, T3, T4, T5)

where T1: for<'k> Key<'k>, T2: for<'k> Key<'k>, T3: for<'k> Key<'k>, T4: for<'k> Key<'k>, T5: for<'k> Key<'k>,

type Error = CompositeKeyError

const LENGTH: Option<usize> = _

fn describe<Visitor>(visitor: &mut Visitor)

where Visitor: KeyVisitor,

fn as_ord_bytes(&self) -> Result<Cow<'_, [u8]>, Self::Error>

impl<T1, T2, T3, T4, T5, T6> KeyEncoding for (T1, T2, T3, T4, T5, T6)

where T1: for<'k> Key<'k>, T2: for<'k> Key<'k>, T3: for<'k> Key<'k>, T4: for<'k> Key<'k>, T5: for<'k> Key<'k>, T6: for<'k> Key<'k>,

type Error = CompositeKeyError

const LENGTH: Option<usize> = _

fn describe<Visitor>(visitor: &mut Visitor)

where Visitor: KeyVisitor,

fn as_ord_bytes(&self) -> Result<Cow<'_, [u8]>, Self::Error>

impl<T1, T2, T3, T4, T5, T6, T7> KeyEncoding for (T1, T2, T3, T4, T5, T6, T7)

where T1: for<'k> Key<'k>, T2: for<'k> Key<'k>, T3: for<'k> Key<'k>, T4: for<'k> Key<'k>, T5: for<'k> Key<'k>, T6: for<'k> Key<'k>, T7: for<'k> Key<'k>,

type Error = CompositeKeyError

const LENGTH: Option<usize> = _

fn describe<Visitor>(visitor: &mut Visitor)

where Visitor: KeyVisitor,

fn as_ord_bytes(&self) -> Result<Cow<'_, [u8]>, Self::Error>

impl<T1, T2, T3, T4, T5, T6, T7, T8> KeyEncoding for (T1, T2, T3, T4, T5, T6, T7, T8)

where T1: for<'k> Key<'k>, T2: for<'k> Key<'k>, T3: for<'k> Key<'k>, T4: for<'k> Key<'k>, T5: for<'k> Key<'k>, T6: for<'k> Key<'k>, T7: for<'k> Key<'k>, T8: for<'k> Key<'k>,

type Error = CompositeKeyError

const LENGTH: Option<usize> = _

fn describe<Visitor>(visitor: &mut Visitor)

where Visitor: KeyVisitor,

fn as_ord_bytes(&self) -> Result<Cow<'_, [u8]>, Self::Error>

impl<const N: usize> KeyEncoding for [u8; N]

type Error = IncorrectByteLength

const LENGTH: Option<usize> = _

fn describe<Visitor>(visitor: &mut Visitor)

where Visitor: KeyVisitor,

fn as_ord_bytes(&self) -> Result<Cow<'_, [u8]>, Self::Error>

Implementors

impl KeyEncoding for SensitiveBytes

type Error = Infallible

const LENGTH: Option<usize> = None

impl KeyEncoding for SensitiveString

type Error = FromUtf8Error

const LENGTH: Option<usize> = None

impl KeyEncoding for Timestamp

type Error = IncorrectByteLength

const LENGTH: Option<usize> = _

impl<'a, 'k, TOwned, TBorrowed> KeyEncoding for MaybeOwned<'a, TOwned, TBorrowed>

where TBorrowed: KeyEncoding<TOwned, Error = TOwned::Error> + PartialEq + ?Sized, TOwned: Key<'k> + PartialEq<TBorrowed>,

type Error = <TOwned as KeyEncoding>::Error

const LENGTH: Option<usize> = TBorrowed::LENGTH

impl<K, T> KeyEncoding<OptionKeyV1<K>> for OptionKeyV1<T>

where T: KeyEncoding<K>, K: for<'k> Key<'k>,

type Error = <T as KeyEncoding<K>>::Error

const LENGTH: Option<usize> = T::LENGTH

impl<PrimaryKey> KeyEncoding<PrimaryKey> for DocumentId

where PrimaryKey: for<'pk> Key<'pk>,

type Error = Error

const LENGTH: Option<usize> = None

impl<Resolution> KeyEncoding for LimitedResolutionDuration<Resolution>

where Resolution: TimeResolution,

type Error = TimeError

const LENGTH: Option<usize> = None

impl<Resolution, Epoch> KeyEncoding for LimitedResolutionTimestamp<Resolution, Epoch>

where Resolution: TimeResolution, Epoch: TimeEpoch,

type Error = TimeError

const LENGTH: Option<usize> = None

impl<T1> KeyEncoding for TupleEncodingV1<(T1,)>

where T1: for<'k> Key<'k>,

type Error = CompositeKeyError

const LENGTH: Option<usize> = _

impl<T1, T2> KeyEncoding for TupleEncodingV1<(T1, T2)>

where T1: for<'k> Key<'k>, T2: for<'k> Key<'k>,

type Error = CompositeKeyError

const LENGTH: Option<usize> = _

impl<T1, T2, T3> KeyEncoding for TupleEncodingV1<(T1, T2, T3)>

where T1: for<'k> Key<'k>, T2: for<'k> Key<'k>, T3: for<'k> Key<'k>,

type Error = CompositeKeyError

const LENGTH: Option<usize> = _

impl<T1, T2, T3, T4> KeyEncoding for TupleEncodingV1<(T1, T2, T3, T4)>

where T1: for<'k> Key<'k>, T2: for<'k> Key<'k>, T3: for<'k> Key<'k>, T4: for<'k> Key<'k>,

type Error = CompositeKeyError

const LENGTH: Option<usize> = _

impl<T1, T2, T3, T4, T5> KeyEncoding for TupleEncodingV1<(T1, T2, T3, T4, T5)>

where T1: for<'k> Key<'k>, T2: for<'k> Key<'k>, T3: for<'k> Key<'k>, T4: for<'k> Key<'k>, T5: for<'k> Key<'k>,

type Error = CompositeKeyError

const LENGTH: Option<usize> = _

impl<T1, T2, T3, T4, T5, T6> KeyEncoding for TupleEncodingV1<(T1, T2, T3, T4, T5, T6)>

where T1: for<'k> Key<'k>, T2: for<'k> Key<'k>, T3: for<'k> Key<'k>, T4: for<'k> Key<'k>, T5: for<'k> Key<'k>, T6: for<'k> Key<'k>,

type Error = CompositeKeyError

const LENGTH: Option<usize> = _

impl<T1, T2, T3, T4, T5, T6, T7> KeyEncoding for TupleEncodingV1<(T1, T2, T3, T4, T5, T6, T7)>

where T1: for<'k> Key<'k>, T2: for<'k> Key<'k>, T3: for<'k> Key<'k>, T4: for<'k> Key<'k>, T5: for<'k> Key<'k>, T6: for<'k> Key<'k>, T7: for<'k> Key<'k>,

type Error = CompositeKeyError

const LENGTH: Option<usize> = _

impl<T1, T2, T3, T4, T5, T6, T7, T8> KeyEncoding for TupleEncodingV1<(T1, T2, T3, T4, T5, T6, T7, T8)>

where T1: for<'k> Key<'k>, T2: for<'k> Key<'k>, T3: for<'k> Key<'k>, T4: for<'k> Key<'k>, T5: for<'k> Key<'k>, T6: for<'k> Key<'k>, T7: for<'k> Key<'k>, T8: for<'k> Key<'k>,

type Error = CompositeKeyError

const LENGTH: Option<usize> = _

impl<T> KeyEncoding for EnumKey<T>

where T: ToPrimitive + FromPrimitive + Clone + Eq + Ord + Debug + Send + Sync,

type Error = Error

const LENGTH: Option<usize> = None

impl<T> KeyEncoding for VarInt<T>

where T: VariableInteger,

type Error = Error

const LENGTH: Option<usize> = None