Enum ValueType 

pub enum ValueType {
    Value = 0,
    Tombstone = 1,
    WeakTombstone = 2,
    MergeOperand = 3,
    Indirection = 4,
    CellRow = 5,
}

Value type (regular value or tombstone)

Variants

Value = 0

Existing value

Tombstone = 1

Deleted value

WeakTombstone = 2

“Weak” deletion (a.k.a. SingleDelete in RocksDB)

MergeOperand = 3

Merge operand

Stores a partial update that will be combined with other operands and/or a base value via a user-provided crate::MergeOperator.

Indirection = 4

Value pointer

Points to a blob in a blob file.

CellRow = 5

A row written as cells, some of which may keep their bytes in a blob file (see [crate::blob_tree::field_row]). Reads as a put, like a value, with each referenced cell resolved to its object.

Implementations

impl ValueType

pub fn is_tombstone(self) -> bool

Returns true if the type is a tombstone marker (either normal or weak).

pub fn is_merge_operand(self) -> bool

Returns true if the type is a merge operand.

Trait Implementations

impl Clone for ValueType

fn clone(&self) -> Self

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Copy for ValueType

impl Debug for ValueType

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

Formats the value using the given formatter.

impl Eq for ValueType

impl From<ValueType> for u8

fn from(value: ValueType) -> Self

Converts to this type from the input type.

impl PartialEq for ValueType

fn eq(&self, other: &Self) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl StructuralPartialEq for ValueType

impl TryFrom<u8> for ValueType

type Error = ()

The type returned in the event of a conversion error.

fn try_from(value: u8) -> Result<Self, Self::Error>

Performs the conversion.