Trait ExportSource 

pub trait ExportSource {
    // Required methods
    fn for_each_node(
        &self,
        each: &mut dyn FnMut(NodeInfo) -> Result<(), CliError>,
    ) -> Result<(), CliError>;
    fn for_each_edge(
        &self,
        each: &mut dyn FnMut(ExportEdge) -> Result<(), CliError>,
    ) -> Result<(), CliError>;
    fn label_of(&self, key: &str) -> Option<String>;
}

Where an export reads the store from: node by node and edge by edge, so an export holds one record at a time (see mushroomdb::GraphDb::for_each_node_for_export). Nodes arrive sorted by key and edges by (edge_type, src, dst).

Required Methods

fn for_each_node( &self, each: &mut dyn FnMut(NodeInfo) -> Result<(), CliError>, ) -> Result<(), CliError>

fn for_each_edge( &self, each: &mut dyn FnMut(ExportEdge) -> Result<(), CliError>, ) -> Result<(), CliError>

fn label_of(&self, key: &str) -> Option<String>

The label of the node key.

Dyn Compatibility

This trait is dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety".

Implementations on Foreign Types

impl ExportSource for GraphDb<RealFs>

fn for_each_node( &self, each: &mut dyn FnMut(NodeInfo) -> Result<(), CliError>, ) -> Result<(), CliError>

fn for_each_edge( &self, each: &mut dyn FnMut(ExportEdge) -> Result<(), CliError>, ) -> Result<(), CliError>

fn label_of(&self, key: &str) -> Option<String>

Implementors

impl ExportSource for Slices<'_>