Struct RoaringValue 

pub struct RoaringValue;

Value handler for RoaringTreemap in partitioned tables.

This struct provides the bridge between the generic partitioned storage and roaring-specific value operations. It handles:

• Serialization/deserialization of RoaringTreemap
• Size queries for segment rolling decisions
• Version management for future migrations

Implementations

impl RoaringValue

pub fn new() -> Self

Creates a new RoaringValue handler.

pub fn encode(&self, bitmap: &RoaringTreemap) -> Result<Vec<u8>>

Encodes a RoaringTreemap into storage format.

Arguments

• bitmap - The roaring bitmap to encode

Returns

Encoded bytes ready for storage

pub fn decode(&self, data: &[u8]) -> Result<RoaringTreemap>

Decodes storage bytes into a RoaringTreemap.

Arguments

• data - The encoded value bytes

Returns

Decoded RoaringTreemap

pub fn get_serialized_size(&self, bitmap: &RoaringTreemap) -> Result<usize>

Gets the serialized size of a RoaringTreemap.

This size is used by the partition layer to determine when to roll segments based on the configured maximum segment size.

Arguments

• bitmap - The roaring bitmap to measure

Returns

Serialized size in bytes (including version prefix)

pub fn empty(&self) -> RoaringTreemap

Creates an empty RoaringTreemap.

pub fn from_single(&self, value: u64) -> RoaringTreemap

Creates a RoaringTreemap from a single value.

pub fn from_iter<I>(&self, iter: I) -> RoaringTreemap

where I: IntoIterator<Item = u64>,

Creates a RoaringTreemap from an iterator of values.

Trait Implementations

impl Clone for RoaringValue

fn clone(&self) -> RoaringValue

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for RoaringValue

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

Formats the value using the given formatter.

impl Default for RoaringValue

fn default() -> Self

Returns the “default value” for a type.

impl Value for RoaringValue

type SelfType<'a> = RoaringTreemap where Self: 'a

SelfType<'a> must be the same type as Self with all lifetimes replaced with ’a

type AsBytes<'a> = Vec<u8> where Self: 'a

fn fixed_width() -> Option<usize>

Width of a fixed type, or None for variable width

fn from_bytes<'a>(data: &'a [u8]) -> Self::SelfType<'a>

where Self: 'a,

Deserializes data Implementations may return a view over data, or an owned type

fn as_bytes<'a, 'b: 'a>(value: &'a Self::SelfType<'b>) -> Self::AsBytes<'a>

where Self: 'b,

Serialize the value to a slice

fn type_name() -> TypeName

Globally unique identifier for this type