sqlitegraph::backend::native::v3::edge_compat

Struct V3EdgeCluster

pub struct V3EdgeCluster {
    pub src: i64,
    pub edges: Vec<CompactEdgeRecord>,
    pub direction: Direction,
    pub format_version: u8,
    pub page_id: u64,
}

Expand description

Edge cluster entry for V3 storage Uses V2 CompactEdgeRecord format for compatibility

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§src: i64

Source node ID (logical, not slot)

§edges: Vec<CompactEdgeRecord>

Destination node IDs with edge data

§direction: Direction

Edge direction

§format_version: u8

Format version for future migration

§page_id: u64

Page ID where this cluster is stored

Implementations§

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impl V3EdgeCluster

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pub fn new(src: i64, direction: Direction, page_id: u64) -> Self

Create new empty edge cluster

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pub fn add_edge(&mut self, dst: i64, edge_type: Option<String>)

Add edge to cluster Edge type is encoded in edge_data using inline format: [type_len: u8][type_bytes]

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pub fn dsts(&self) -> Vec<i64>

Get destination node IDs

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pub fn edges_with_types(&self) -> Vec<(i64, Option<String>)>

Get edges with their types (for recovery/rebuilding HashMap)

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pub fn serialize(&self) -> NativeResult<Vec<u8>>

Serialize to bytes for page storage Format v3: [version: 1 byte] [src: 8 bytes] [dir: 1 byte] [compressed: 1 byte] [edge_count: 4 bytes] [compressed_ids…][edge_metadata…] Format v2: [version: 1 byte] [src: 8 bytes] [dir: 1 byte] [edge_count: 4 bytes] [edges…] Format v1: [version: 1 byte] [edge_count: 4 bytes] [edges…] (legacy, no src/dir)

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pub fn deserialize(bytes: &[u8], page_id: u64) -> NativeResult<Self>

Deserialize from bytes Format v2: [version: 1 byte] [src: 8 bytes] [dir: 1 byte] [edge_count: 4 bytes] [edges…] Format v1: [version: 1 byte] [edge_count: 4 bytes] [edges…] (src=0, dir=Outgoing)

Trait Implementations§

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impl Clone for V3EdgeCluster

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fn clone(&self) -> V3EdgeCluster

Returns a duplicate of the value. Read more

1.0.0 (const: unstable) · Source§

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

Performs copy-assignment from source. Read more

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impl Debug for V3EdgeCluster

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

Formats the value using the given formatter. Read more

Auto Trait Implementations§

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impl UnwindSafe for V3EdgeCluster

Blanket Implementations§

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more

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impl<T> CloneToUninit for T
where T: Clone,

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unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)

Performs copy-assignment from self to dest. Read more

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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T> IntoEither for T

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fn into_either(self, into_left: bool) -> Either<Self, Self>

Converts self into a Left variant of Either<Self, Self> if into_left is true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more

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fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
where F: FnOnce(&Self) -> bool,

Converts self into a Left variant of Either<Self, Self> if into_left(&self) returns true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more

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