sqlitegraph::backend::native::edge_store

Struct EdgeRecordOperations

pub struct EdgeRecordOperations<'a> { /* private fields */ }

Expand description

Edge record operations manager for CRUD operations

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impl<'a> EdgeRecordOperations<'a>

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pub fn new(graph_file: &'a mut GraphFile) -> Self

Create a new edge record operations manager

§Arguments

graph_file - Mutable reference to the graph file

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pub fn write_edge(&mut self, edge: &EdgeRecord) -> NativeResult<()>

Write an edge record to the file

Validates, serializes and writes an edge record to the appropriate location. Uses fixed-size slots for simplicity and performance.

§Arguments

edge - The edge record to write

§Returns

Ok(()) if successful, Err with details if failed

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pub fn read_edge(&mut self, edge_id: NativeEdgeId) -> NativeResult<EdgeRecord>

Read an edge record from the file

Reads and deserializes an edge record from the file by ID. Uses fixed-size slots and validates the record format.

§Arguments

edge_id - The ID of the edge to read

§Returns

The deserialized edge record if successful

§Errors

InvalidEdgeId if the edge ID is out of range
CorruptEdgeRecord if the record format is invalid

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pub fn update_edge(&mut self, edge: &EdgeRecord) -> NativeResult<()>

Update an existing edge record

Validates the updated edge and writes it to the file. The edge ID must already exist and be valid.

§Arguments

edge - The updated edge record

§Returns

Ok(()) if successful, Err with details if failed

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pub fn delete_edge(&mut self, edge_id: NativeEdgeId) -> NativeResult<()>

Delete an edge record by marking it as deleted

Note: This implementation marks edges as deleted by setting a flag rather than actually removing the data to maintain fixed offset calculations.

§Arguments

edge_id - The ID of the edge to delete

§Returns

Ok(()) if successful, Err with details if failed

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pub fn is_edge_deleted(&mut self, edge_id: NativeEdgeId) -> NativeResult<bool>

Check if an edge is marked as deleted

§Arguments

edge_id - The ID of the edge to check

§Returns

true if the edge is marked as deleted, false otherwise

Auto Trait Implementations§

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impl<'a> !UnwindSafe for EdgeRecordOperations<'a>

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

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where T: ?Sized,

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

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impl<T> From<T> for T

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fn from(t: T) -> T

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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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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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