Enum aws_sdk_fsx::types::BackupLifecycle
source · #[non_exhaustive]pub enum BackupLifecycle {
Available,
Copying,
Creating,
Deleted,
Failed,
Pending,
Transferring,
Unknown(UnknownVariantValue),
}
Expand description
When writing a match expression against BackupLifecycle
, it is important to ensure
your code is forward-compatible. That is, if a match arm handles a case for a
feature that is supported by the service but has not been represented as an enum
variant in a current version of SDK, your code should continue to work when you
upgrade SDK to a future version in which the enum does include a variant for that
feature.
Here is an example of how you can make a match expression forward-compatible:
# let backuplifecycle = unimplemented!();
match backuplifecycle {
BackupLifecycle::Available => { /* ... */ },
BackupLifecycle::Copying => { /* ... */ },
BackupLifecycle::Creating => { /* ... */ },
BackupLifecycle::Deleted => { /* ... */ },
BackupLifecycle::Failed => { /* ... */ },
BackupLifecycle::Pending => { /* ... */ },
BackupLifecycle::Transferring => { /* ... */ },
other @ _ if other.as_str() == "NewFeature" => { /* handles a case for `NewFeature` */ },
_ => { /* ... */ },
}
The above code demonstrates that when backuplifecycle
represents
NewFeature
, the execution path will lead to the second last match arm,
even though the enum does not contain a variant BackupLifecycle::NewFeature
in the current version of SDK. The reason is that the variable other
,
created by the @
operator, is bound to
BackupLifecycle::Unknown(UnknownVariantValue("NewFeature".to_owned()))
and calling as_str
on it yields "NewFeature"
.
This match expression is forward-compatible when executed with a newer
version of SDK where the variant BackupLifecycle::NewFeature
is defined.
Specifically, when backuplifecycle
represents NewFeature
,
the execution path will hit the second last match arm as before by virtue of
calling as_str
on BackupLifecycle::NewFeature
also yielding "NewFeature"
.
Explicitly matching on the Unknown
variant should
be avoided for two reasons:
- The inner data
UnknownVariantValue
is opaque, and no further information can be extracted. - It might inadvertently shadow other intended match arms.
The lifecycle status of the backup.
-
AVAILABLE
- The backup is fully available. -
PENDING
- For user-initiated backups on Lustre file systems only; Amazon FSx hasn't started creating the backup. -
CREATING
- Amazon FSx is creating the new user-initiated backup. -
TRANSFERRING
- For user-initiated backups on Lustre file systems only; Amazon FSx is backing up the file system. -
COPYING
- Amazon FSx is copying the backup. -
DELETED
- Amazon FSx deleted the backup and it's no longer available. -
FAILED
- Amazon FSx couldn't finish the backup.
Variants (Non-exhaustive)§
This enum is marked as non-exhaustive
Available
Copying
Creating
Deleted
Failed
Pending
Transferring
Unknown(UnknownVariantValue)
Unknown
. See the docs on this enum for the correct way to handle unknown variants.Unknown
contains new variants that have been added since this code was generated.
Implementations§
source§impl BackupLifecycle
impl BackupLifecycle
sourcepub fn try_parse(value: &str) -> Result<Self, UnknownVariantError>
pub fn try_parse(value: &str) -> Result<Self, UnknownVariantError>
Parses the enum value while disallowing unknown variants.
Unknown variants will result in an error.
Trait Implementations§
source§impl AsRef<str> for BackupLifecycle
impl AsRef<str> for BackupLifecycle
source§impl Clone for BackupLifecycle
impl Clone for BackupLifecycle
source§fn clone(&self) -> BackupLifecycle
fn clone(&self) -> BackupLifecycle
1.0.0 · source§fn clone_from(&mut self, source: &Self)
fn clone_from(&mut self, source: &Self)
source
. Read moresource§impl Debug for BackupLifecycle
impl Debug for BackupLifecycle
source§impl Display for BackupLifecycle
impl Display for BackupLifecycle
source§impl From<&str> for BackupLifecycle
impl From<&str> for BackupLifecycle
source§impl FromStr for BackupLifecycle
impl FromStr for BackupLifecycle
source§impl Hash for BackupLifecycle
impl Hash for BackupLifecycle
source§impl Ord for BackupLifecycle
impl Ord for BackupLifecycle
source§fn cmp(&self, other: &BackupLifecycle) -> Ordering
fn cmp(&self, other: &BackupLifecycle) -> Ordering
1.21.0 · source§fn max(self, other: Self) -> Selfwhere
Self: Sized,
fn max(self, other: Self) -> Selfwhere
Self: Sized,
source§impl PartialEq for BackupLifecycle
impl PartialEq for BackupLifecycle
source§fn eq(&self, other: &BackupLifecycle) -> bool
fn eq(&self, other: &BackupLifecycle) -> bool
self
and other
values to be equal, and is used
by ==
.source§impl PartialOrd for BackupLifecycle
impl PartialOrd for BackupLifecycle
source§fn partial_cmp(&self, other: &BackupLifecycle) -> Option<Ordering>
fn partial_cmp(&self, other: &BackupLifecycle) -> Option<Ordering>
1.0.0 · source§fn le(&self, other: &Rhs) -> bool
fn le(&self, other: &Rhs) -> bool
self
and other
) and is used by the <=
operator. Read moreimpl Eq for BackupLifecycle
impl StructuralPartialEq for BackupLifecycle
Auto Trait Implementations§
impl Freeze for BackupLifecycle
impl RefUnwindSafe for BackupLifecycle
impl Send for BackupLifecycle
impl Sync for BackupLifecycle
impl Unpin for BackupLifecycle
impl UnwindSafe for BackupLifecycle
Blanket Implementations§
source§impl<T> BorrowMut<T> for Twhere
T: ?Sized,
impl<T> BorrowMut<T> for Twhere
T: ?Sized,
source§fn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
source§impl<Q, K> Comparable<K> for Q
impl<Q, K> Comparable<K> for Q
source§impl<Q, K> Equivalent<K> for Q
impl<Q, K> Equivalent<K> for Q
source§impl<Q, K> Equivalent<K> for Q
impl<Q, K> Equivalent<K> for Q
source§fn equivalent(&self, key: &K) -> bool
fn equivalent(&self, key: &K) -> bool
key
and return true
if they are equal.source§impl<T> Instrument for T
impl<T> Instrument for T
source§fn instrument(self, span: Span) -> Instrumented<Self>
fn instrument(self, span: Span) -> Instrumented<Self>
source§fn in_current_span(self) -> Instrumented<Self>
fn in_current_span(self) -> Instrumented<Self>
source§impl<T> IntoEither for T
impl<T> IntoEither for T
source§fn into_either(self, into_left: bool) -> Either<Self, Self>
fn into_either(self, into_left: bool) -> Either<Self, Self>
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 moresource§fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
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