Enum aws_sdk_glue::types::GlueRecordType
source · #[non_exhaustive]pub enum GlueRecordType {
Bigdecimal,
Byte,
Date,
Double,
Float,
Int,
Long,
Short,
String,
Timestamp,
Unknown(UnknownVariantValue),
}
Expand description
When writing a match expression against GlueRecordType
, 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 gluerecordtype = unimplemented!();
match gluerecordtype {
GlueRecordType::Bigdecimal => { /* ... */ },
GlueRecordType::Byte => { /* ... */ },
GlueRecordType::Date => { /* ... */ },
GlueRecordType::Double => { /* ... */ },
GlueRecordType::Float => { /* ... */ },
GlueRecordType::Int => { /* ... */ },
GlueRecordType::Long => { /* ... */ },
GlueRecordType::Short => { /* ... */ },
GlueRecordType::String => { /* ... */ },
GlueRecordType::Timestamp => { /* ... */ },
other @ _ if other.as_str() == "NewFeature" => { /* handles a case for `NewFeature` */ },
_ => { /* ... */ },
}
The above code demonstrates that when gluerecordtype
represents
NewFeature
, the execution path will lead to the second last match arm,
even though the enum does not contain a variant GlueRecordType::NewFeature
in the current version of SDK. The reason is that the variable other
,
created by the @
operator, is bound to
GlueRecordType::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 GlueRecordType::NewFeature
is defined.
Specifically, when gluerecordtype
represents NewFeature
,
the execution path will hit the second last match arm as before by virtue of
calling as_str
on GlueRecordType::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.
Variants (Non-exhaustive)§
This enum is marked as non-exhaustive
Bigdecimal
Byte
Date
Double
Float
Int
Long
Short
String
Timestamp
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 GlueRecordType
impl GlueRecordType
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 GlueRecordType
impl AsRef<str> for GlueRecordType
source§impl Clone for GlueRecordType
impl Clone for GlueRecordType
source§fn clone(&self) -> GlueRecordType
fn clone(&self) -> GlueRecordType
1.0.0 · source§fn clone_from(&mut self, source: &Self)
fn clone_from(&mut self, source: &Self)
source
. Read moresource§impl Debug for GlueRecordType
impl Debug for GlueRecordType
source§impl Display for GlueRecordType
impl Display for GlueRecordType
source§impl From<&str> for GlueRecordType
impl From<&str> for GlueRecordType
source§impl FromStr for GlueRecordType
impl FromStr for GlueRecordType
source§impl Hash for GlueRecordType
impl Hash for GlueRecordType
source§impl Ord for GlueRecordType
impl Ord for GlueRecordType
source§fn cmp(&self, other: &GlueRecordType) -> Ordering
fn cmp(&self, other: &GlueRecordType) -> 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 GlueRecordType
impl PartialEq for GlueRecordType
source§fn eq(&self, other: &GlueRecordType) -> bool
fn eq(&self, other: &GlueRecordType) -> bool
self
and other
values to be equal, and is used
by ==
.source§impl PartialOrd for GlueRecordType
impl PartialOrd for GlueRecordType
source§fn partial_cmp(&self, other: &GlueRecordType) -> Option<Ordering>
fn partial_cmp(&self, other: &GlueRecordType) -> 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 GlueRecordType
impl StructuralPartialEq for GlueRecordType
Auto Trait Implementations§
impl Freeze for GlueRecordType
impl RefUnwindSafe for GlueRecordType
impl Send for GlueRecordType
impl Sync for GlueRecordType
impl Unpin for GlueRecordType
impl UnwindSafe for GlueRecordType
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