Enum DeclaredMapping

pub enum DeclaredMapping {
    Direct {
        description: CollectionDescription,
    },
    Mapped {
        alias: String,
        a: CollectionDescription,
        b: CollectionDescription,
    },
}

A mapping between of a pair of collections across storages.

This is an unresolved mapping which may be lacking information on one side.

Variants

Direct

Copy between two collections with the same definition on both sides.

Usage of CollectionDescription::Href between different storage implementations is discouraged.

Fields

description: CollectionDescription

Mapped

Copy between two collections with explicit definitions on both sides.

Fields

alias: String

A descriptive name used for logging and display.

a: CollectionDescription

b: CollectionDescription

Implementations

impl DeclaredMapping

pub fn direct(id: CollectionId) -> Self

Create a direct mapping.

This creates the simplest kind of mapping: it maps two collections with the same CollectionId.

Trait Implementations

impl Clone for DeclaredMapping

fn clone(&self) -> DeclaredMapping

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for DeclaredMapping

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

Formats the value using the given formatter.