Struct indradb::MemoryTransaction

pub struct MemoryTransaction { /* fields omitted */ }

A transaction for manipulating in-memory-only datastores.

Trait Implementations

impl Debug for MemoryTransaction

fn fmt(&self, __arg_0: &mut Formatter) -> Result

Formats the value using the given formatter.

impl Transaction for MemoryTransaction

fn create_vertex(&self, t: Type) -> Result<Uuid, Error>

Creates a new vertex.

fn get_vertices(&self, q: VertexQuery) -> Result<Vec<Vertex>, Error>

Gets a range of vertices specified by a query.

fn delete_vertices(&self, q: VertexQuery) -> Result<(), Error>

Deletes existing vertices specified by a query.

fn create_edge(&self, key: EdgeKey, weight: Weight) -> Result<(), Error>

Creates a new edge. If the edge already exists, this will update it with a new update datetime and weight. The transaction tied to the account must own the vertex from which the edge is outbounding from, but does not need to own the inbounding vertex.

fn get_edges(&self, q: EdgeQuery) -> Result<Vec<Edge>, Error>

Gets a range of edges specified by a query.

fn delete_edges(&self, q: EdgeQuery) -> Result<(), Error>

Deletes a set of edges specified by a query.

fn get_edge_count(&self, q: EdgeQuery) -> Result<u64, Error>

Gets the number of edges that match a query.

fn get_global_metadata(&self, name: String) -> Result<JsonValue, Error>

Gets a global metadata value.

fn set_global_metadata(
    &self,
    name: String,
    value: JsonValue
) -> Result<(), Error>

Sets a global metadata value.

fn delete_global_metadata(&self, name: String) -> Result<(), Error>

Deletes a global metadata value.

fn get_account_metadata(
    &self,
    owner_id: Uuid,
    name: String
) -> Result<JsonValue, Error>

Gets an account metadata value.

fn set_account_metadata(
    &self,
    owner_id: Uuid,
    name: String,
    value: JsonValue
) -> Result<(), Error>

Sets an account metadata value.

fn delete_account_metadata(
    &self,
    owner_id: Uuid,
    name: String
) -> Result<(), Error>

Deletes an account metadata value.

fn get_vertex_metadata(
    &self,
    q: VertexQuery,
    name: String
) -> Result<HashMap<Uuid, JsonValue>, Error>

Gets a vertex metadata value.

fn set_vertex_metadata(
    &self,
    q: VertexQuery,
    name: String,
    value: JsonValue
) -> Result<(), Error>

Sets a vertex metadata value.

fn delete_vertex_metadata(
    &self,
    q: VertexQuery,
    name: String
) -> Result<(), Error>

Deletes a vertex metadata value.

fn get_edge_metadata(
    &self,
    q: EdgeQuery,
    name: String
) -> Result<HashMap<EdgeKey, JsonValue>, Error>

Gets an edge metadata value.

fn set_edge_metadata(
    &self,
    q: EdgeQuery,
    name: String,
    value: JsonValue
) -> Result<(), Error>

Sets an edge metadata value.

fn delete_edge_metadata(&self, q: EdgeQuery, name: String) -> Result<(), Error>

Deletes an edge metadata value.

fn commit(self) -> Result<(), Error>

Commits the transaction.

fn rollback(self) -> Result<(), Error>

Rolls the transaction back.