Enum SnapshotPolicy 

pub enum SnapshotPolicy {
    Required,
    Optional,
    Forbidden,
}

Snapshot presence policy fixed for one traversal.

Variants

Required

Every response must provide one stable identifier.

Optional

Presence is provider-dependent but cannot change after the first page.

Forbidden

Responses must not provide snapshot identifiers.

Trait Implementations

impl Clone for SnapshotPolicy

fn clone(&self) -> SnapshotPolicy

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for SnapshotPolicy

impl Debug for SnapshotPolicy

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

Formats the value using the given formatter.

impl Eq for SnapshotPolicy

impl PartialEq for SnapshotPolicy

fn eq(&self, other: &SnapshotPolicy) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl StructuralPartialEq for SnapshotPolicy