Enum aws_sdk_elasticache::model::AuthTokenUpdateStrategyType

#[non_exhaustive]
pub enum AuthTokenUpdateStrategyType {
    Delete,
    Rotate,
    Set,
    Unknown(UnknownVariantValue),
}

When writing a match expression against AuthTokenUpdateStrategyType, 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 authtokenupdatestrategytype = unimplemented!();
match authtokenupdatestrategytype {
    AuthTokenUpdateStrategyType::Delete => { /* ... */ },
    AuthTokenUpdateStrategyType::Rotate => { /* ... */ },
    AuthTokenUpdateStrategyType::Set => { /* ... */ },
    other @ _ if other.as_str() == "NewFeature" => { /* handles a case for `NewFeature` */ },
    _ => { /* ... */ },
}

The above code demonstrates that when authtokenupdatestrategytype represents NewFeature, the execution path will lead to the second last match arm, even though the enum does not contain a variant AuthTokenUpdateStrategyType::NewFeature in the current version of SDK. The reason is that the variable other, created by the @ operator, is bound to AuthTokenUpdateStrategyType::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 AuthTokenUpdateStrategyType::NewFeature is defined. Specifically, when authtokenupdatestrategytype represents NewFeature, the execution path will hit the second last match arm as before by virtue of calling as_str on AuthTokenUpdateStrategyType::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)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

Delete

Rotate

Set

Unknown(UnknownVariantValue)

Unknown contains new variants that have been added since this code was generated.

Implementations

impl AuthTokenUpdateStrategyType

pub fn as_str(&self) -> &str

Returns the &str value of the enum member.

Examples found in repository

src/model.rs (line 6582)

    fn as_ref(&self) -> &str {
        self.as_str()
    }

src/operation_ser.rs (line 2214)

pub fn serialize_operation_crate_operation_modify_cache_cluster(
    input: &crate::input::ModifyCacheClusterInput,
) -> Result<aws_smithy_http::body::SdkBody, aws_smithy_http::operation::error::SerializationError> {
    let mut out = String::new();
    #[allow(unused_mut)]
    let mut writer =
        aws_smithy_query::QueryWriter::new(&mut out, "ModifyCacheCluster", "2015-02-02");
    #[allow(unused_mut)]
    let mut scope_588 = writer.prefix("CacheClusterId");
    if let Some(var_589) = &input.cache_cluster_id {
        scope_588.string(var_589);
    }
    #[allow(unused_mut)]
    let mut scope_590 = writer.prefix("NumCacheNodes");
    if let Some(var_591) = &input.num_cache_nodes {
        scope_590.number(
            #[allow(clippy::useless_conversion)]
            aws_smithy_types::Number::NegInt((*var_591).into()),
        );
    }
    #[allow(unused_mut)]
    let mut scope_592 = writer.prefix("CacheNodeIdsToRemove");
    if let Some(var_593) = &input.cache_node_ids_to_remove {
        let mut list_595 = scope_592.start_list(false, Some("CacheNodeId"));
        for item_594 in var_593 {
            #[allow(unused_mut)]
            let mut entry_596 = list_595.entry();
            entry_596.string(item_594);
        }
        list_595.finish();
    }
    #[allow(unused_mut)]
    let mut scope_597 = writer.prefix("AZMode");
    if let Some(var_598) = &input.az_mode {
        scope_597.string(var_598.as_str());
    }
    #[allow(unused_mut)]
    let mut scope_599 = writer.prefix("NewAvailabilityZones");
    if let Some(var_600) = &input.new_availability_zones {
        let mut list_602 = scope_599.start_list(false, Some("PreferredAvailabilityZone"));
        for item_601 in var_600 {
            #[allow(unused_mut)]
            let mut entry_603 = list_602.entry();
            entry_603.string(item_601);
        }
        list_602.finish();
    }
    #[allow(unused_mut)]
    let mut scope_604 = writer.prefix("CacheSecurityGroupNames");
    if let Some(var_605) = &input.cache_security_group_names {
        let mut list_607 = scope_604.start_list(false, Some("CacheSecurityGroupName"));
        for item_606 in var_605 {
            #[allow(unused_mut)]
            let mut entry_608 = list_607.entry();
            entry_608.string(item_606);
        }
        list_607.finish();
    }
    #[allow(unused_mut)]
    let mut scope_609 = writer.prefix("SecurityGroupIds");
    if let Some(var_610) = &input.security_group_ids {
        let mut list_612 = scope_609.start_list(false, Some("SecurityGroupId"));
        for item_611 in var_610 {
            #[allow(unused_mut)]
            let mut entry_613 = list_612.entry();
            entry_613.string(item_611);
        }
        list_612.finish();
    }
    #[allow(unused_mut)]
    let mut scope_614 = writer.prefix("PreferredMaintenanceWindow");
    if let Some(var_615) = &input.preferred_maintenance_window {
        scope_614.string(var_615);
    }
    #[allow(unused_mut)]
    let mut scope_616 = writer.prefix("NotificationTopicArn");
    if let Some(var_617) = &input.notification_topic_arn {
        scope_616.string(var_617);
    }
    #[allow(unused_mut)]
    let mut scope_618 = writer.prefix("CacheParameterGroupName");
    if let Some(var_619) = &input.cache_parameter_group_name {
        scope_618.string(var_619);
    }
    #[allow(unused_mut)]
    let mut scope_620 = writer.prefix("NotificationTopicStatus");
    if let Some(var_621) = &input.notification_topic_status {
        scope_620.string(var_621);
    }
    #[allow(unused_mut)]
    let mut scope_622 = writer.prefix("ApplyImmediately");
    if input.apply_immediately {
        scope_622.boolean(input.apply_immediately);
    }
    #[allow(unused_mut)]
    let mut scope_623 = writer.prefix("EngineVersion");
    if let Some(var_624) = &input.engine_version {
        scope_623.string(var_624);
    }
    #[allow(unused_mut)]
    let mut scope_625 = writer.prefix("AutoMinorVersionUpgrade");
    if let Some(var_626) = &input.auto_minor_version_upgrade {
        scope_625.boolean(*var_626);
    }
    #[allow(unused_mut)]
    let mut scope_627 = writer.prefix("SnapshotRetentionLimit");
    if let Some(var_628) = &input.snapshot_retention_limit {
        scope_627.number(
            #[allow(clippy::useless_conversion)]
            aws_smithy_types::Number::NegInt((*var_628).into()),
        );
    }
    #[allow(unused_mut)]
    let mut scope_629 = writer.prefix("SnapshotWindow");
    if let Some(var_630) = &input.snapshot_window {
        scope_629.string(var_630);
    }
    #[allow(unused_mut)]
    let mut scope_631 = writer.prefix("CacheNodeType");
    if let Some(var_632) = &input.cache_node_type {
        scope_631.string(var_632);
    }
    #[allow(unused_mut)]
    let mut scope_633 = writer.prefix("AuthToken");
    if let Some(var_634) = &input.auth_token {
        scope_633.string(var_634);
    }
    #[allow(unused_mut)]
    let mut scope_635 = writer.prefix("AuthTokenUpdateStrategy");
    if let Some(var_636) = &input.auth_token_update_strategy {
        scope_635.string(var_636.as_str());
    }
    #[allow(unused_mut)]
    let mut scope_637 = writer.prefix("LogDeliveryConfigurations");
    if let Some(var_638) = &input.log_delivery_configurations {
        let mut list_640 = scope_637.start_list(false, Some("LogDeliveryConfigurationRequest"));
        for item_639 in var_638 {
            #[allow(unused_mut)]
            let mut entry_641 = list_640.entry();
            crate::query_ser::serialize_structure_crate_model_log_delivery_configuration_request(
                entry_641, item_639,
            )?;
        }
        list_640.finish();
    }
    writer.finish();
    Ok(aws_smithy_http::body::SdkBody::from(out))
}

pub fn serialize_operation_crate_operation_modify_cache_parameter_group(
    input: &crate::input::ModifyCacheParameterGroupInput,
) -> Result<aws_smithy_http::body::SdkBody, aws_smithy_http::operation::error::SerializationError> {
    let mut out = String::new();
    #[allow(unused_mut)]
    let mut writer =
        aws_smithy_query::QueryWriter::new(&mut out, "ModifyCacheParameterGroup", "2015-02-02");
    #[allow(unused_mut)]
    let mut scope_642 = writer.prefix("CacheParameterGroupName");
    if let Some(var_643) = &input.cache_parameter_group_name {
        scope_642.string(var_643);
    }
    #[allow(unused_mut)]
    let mut scope_644 = writer.prefix("ParameterNameValues");
    if let Some(var_645) = &input.parameter_name_values {
        let mut list_647 = scope_644.start_list(false, Some("ParameterNameValue"));
        for item_646 in var_645 {
            #[allow(unused_mut)]
            let mut entry_648 = list_647.entry();
            crate::query_ser::serialize_structure_crate_model_parameter_name_value(
                entry_648, item_646,
            )?;
        }
        list_647.finish();
    }
    writer.finish();
    Ok(aws_smithy_http::body::SdkBody::from(out))
}

pub fn serialize_operation_crate_operation_modify_cache_subnet_group(
    input: &crate::input::ModifyCacheSubnetGroupInput,
) -> Result<aws_smithy_http::body::SdkBody, aws_smithy_http::operation::error::SerializationError> {
    let mut out = String::new();
    #[allow(unused_mut)]
    let mut writer =
        aws_smithy_query::QueryWriter::new(&mut out, "ModifyCacheSubnetGroup", "2015-02-02");
    #[allow(unused_mut)]
    let mut scope_649 = writer.prefix("CacheSubnetGroupName");
    if let Some(var_650) = &input.cache_subnet_group_name {
        scope_649.string(var_650);
    }
    #[allow(unused_mut)]
    let mut scope_651 = writer.prefix("CacheSubnetGroupDescription");
    if let Some(var_652) = &input.cache_subnet_group_description {
        scope_651.string(var_652);
    }
    #[allow(unused_mut)]
    let mut scope_653 = writer.prefix("SubnetIds");
    if let Some(var_654) = &input.subnet_ids {
        let mut list_656 = scope_653.start_list(false, Some("SubnetIdentifier"));
        for item_655 in var_654 {
            #[allow(unused_mut)]
            let mut entry_657 = list_656.entry();
            entry_657.string(item_655);
        }
        list_656.finish();
    }
    writer.finish();
    Ok(aws_smithy_http::body::SdkBody::from(out))
}

pub fn serialize_operation_crate_operation_modify_global_replication_group(
    input: &crate::input::ModifyGlobalReplicationGroupInput,
) -> Result<aws_smithy_http::body::SdkBody, aws_smithy_http::operation::error::SerializationError> {
    let mut out = String::new();
    #[allow(unused_mut)]
    let mut writer =
        aws_smithy_query::QueryWriter::new(&mut out, "ModifyGlobalReplicationGroup", "2015-02-02");
    #[allow(unused_mut)]
    let mut scope_658 = writer.prefix("GlobalReplicationGroupId");
    if let Some(var_659) = &input.global_replication_group_id {
        scope_658.string(var_659);
    }
    #[allow(unused_mut)]
    let mut scope_660 = writer.prefix("ApplyImmediately");
    {
        scope_660.boolean(input.apply_immediately);
    }
    #[allow(unused_mut)]
    let mut scope_661 = writer.prefix("CacheNodeType");
    if let Some(var_662) = &input.cache_node_type {
        scope_661.string(var_662);
    }
    #[allow(unused_mut)]
    let mut scope_663 = writer.prefix("EngineVersion");
    if let Some(var_664) = &input.engine_version {
        scope_663.string(var_664);
    }
    #[allow(unused_mut)]
    let mut scope_665 = writer.prefix("CacheParameterGroupName");
    if let Some(var_666) = &input.cache_parameter_group_name {
        scope_665.string(var_666);
    }
    #[allow(unused_mut)]
    let mut scope_667 = writer.prefix("GlobalReplicationGroupDescription");
    if let Some(var_668) = &input.global_replication_group_description {
        scope_667.string(var_668);
    }
    #[allow(unused_mut)]
    let mut scope_669 = writer.prefix("AutomaticFailoverEnabled");
    if let Some(var_670) = &input.automatic_failover_enabled {
        scope_669.boolean(*var_670);
    }
    writer.finish();
    Ok(aws_smithy_http::body::SdkBody::from(out))
}

pub fn serialize_operation_crate_operation_modify_replication_group(
    input: &crate::input::ModifyReplicationGroupInput,
) -> Result<aws_smithy_http::body::SdkBody, aws_smithy_http::operation::error::SerializationError> {
    let mut out = String::new();
    #[allow(unused_mut)]
    let mut writer =
        aws_smithy_query::QueryWriter::new(&mut out, "ModifyReplicationGroup", "2015-02-02");
    #[allow(unused_mut)]
    let mut scope_671 = writer.prefix("ReplicationGroupId");
    if let Some(var_672) = &input.replication_group_id {
        scope_671.string(var_672);
    }
    #[allow(unused_mut)]
    let mut scope_673 = writer.prefix("ReplicationGroupDescription");
    if let Some(var_674) = &input.replication_group_description {
        scope_673.string(var_674);
    }
    #[allow(unused_mut)]
    let mut scope_675 = writer.prefix("PrimaryClusterId");
    if let Some(var_676) = &input.primary_cluster_id {
        scope_675.string(var_676);
    }
    #[allow(unused_mut)]
    let mut scope_677 = writer.prefix("SnapshottingClusterId");
    if let Some(var_678) = &input.snapshotting_cluster_id {
        scope_677.string(var_678);
    }
    #[allow(unused_mut)]
    let mut scope_679 = writer.prefix("AutomaticFailoverEnabled");
    if let Some(var_680) = &input.automatic_failover_enabled {
        scope_679.boolean(*var_680);
    }
    #[allow(unused_mut)]
    let mut scope_681 = writer.prefix("MultiAZEnabled");
    if let Some(var_682) = &input.multi_az_enabled {
        scope_681.boolean(*var_682);
    }
    #[allow(unused_mut)]
    let mut scope_683 = writer.prefix("NodeGroupId");
    if let Some(var_684) = &input.node_group_id {
        scope_683.string(var_684);
    }
    #[allow(unused_mut)]
    let mut scope_685 = writer.prefix("CacheSecurityGroupNames");
    if let Some(var_686) = &input.cache_security_group_names {
        let mut list_688 = scope_685.start_list(false, Some("CacheSecurityGroupName"));
        for item_687 in var_686 {
            #[allow(unused_mut)]
            let mut entry_689 = list_688.entry();
            entry_689.string(item_687);
        }
        list_688.finish();
    }
    #[allow(unused_mut)]
    let mut scope_690 = writer.prefix("SecurityGroupIds");
    if let Some(var_691) = &input.security_group_ids {
        let mut list_693 = scope_690.start_list(false, Some("SecurityGroupId"));
        for item_692 in var_691 {
            #[allow(unused_mut)]
            let mut entry_694 = list_693.entry();
            entry_694.string(item_692);
        }
        list_693.finish();
    }
    #[allow(unused_mut)]
    let mut scope_695 = writer.prefix("PreferredMaintenanceWindow");
    if let Some(var_696) = &input.preferred_maintenance_window {
        scope_695.string(var_696);
    }
    #[allow(unused_mut)]
    let mut scope_697 = writer.prefix("NotificationTopicArn");
    if let Some(var_698) = &input.notification_topic_arn {
        scope_697.string(var_698);
    }
    #[allow(unused_mut)]
    let mut scope_699 = writer.prefix("CacheParameterGroupName");
    if let Some(var_700) = &input.cache_parameter_group_name {
        scope_699.string(var_700);
    }
    #[allow(unused_mut)]
    let mut scope_701 = writer.prefix("NotificationTopicStatus");
    if let Some(var_702) = &input.notification_topic_status {
        scope_701.string(var_702);
    }
    #[allow(unused_mut)]
    let mut scope_703 = writer.prefix("ApplyImmediately");
    if input.apply_immediately {
        scope_703.boolean(input.apply_immediately);
    }
    #[allow(unused_mut)]
    let mut scope_704 = writer.prefix("EngineVersion");
    if let Some(var_705) = &input.engine_version {
        scope_704.string(var_705);
    }
    #[allow(unused_mut)]
    let mut scope_706 = writer.prefix("AutoMinorVersionUpgrade");
    if let Some(var_707) = &input.auto_minor_version_upgrade {
        scope_706.boolean(*var_707);
    }
    #[allow(unused_mut)]
    let mut scope_708 = writer.prefix("SnapshotRetentionLimit");
    if let Some(var_709) = &input.snapshot_retention_limit {
        scope_708.number(
            #[allow(clippy::useless_conversion)]
            aws_smithy_types::Number::NegInt((*var_709).into()),
        );
    }
    #[allow(unused_mut)]
    let mut scope_710 = writer.prefix("SnapshotWindow");
    if let Some(var_711) = &input.snapshot_window {
        scope_710.string(var_711);
    }
    #[allow(unused_mut)]
    let mut scope_712 = writer.prefix("CacheNodeType");
    if let Some(var_713) = &input.cache_node_type {
        scope_712.string(var_713);
    }
    #[allow(unused_mut)]
    let mut scope_714 = writer.prefix("AuthToken");
    if let Some(var_715) = &input.auth_token {
        scope_714.string(var_715);
    }
    #[allow(unused_mut)]
    let mut scope_716 = writer.prefix("AuthTokenUpdateStrategy");
    if let Some(var_717) = &input.auth_token_update_strategy {
        scope_716.string(var_717.as_str());
    }
    #[allow(unused_mut)]
    let mut scope_718 = writer.prefix("UserGroupIdsToAdd");
    if let Some(var_719) = &input.user_group_ids_to_add {
        let mut list_721 = scope_718.start_list(false, None);
        for item_720 in var_719 {
            #[allow(unused_mut)]
            let mut entry_722 = list_721.entry();
            entry_722.string(item_720);
        }
        list_721.finish();
    }
    #[allow(unused_mut)]
    let mut scope_723 = writer.prefix("UserGroupIdsToRemove");
    if let Some(var_724) = &input.user_group_ids_to_remove {
        let mut list_726 = scope_723.start_list(false, None);
        for item_725 in var_724 {
            #[allow(unused_mut)]
            let mut entry_727 = list_726.entry();
            entry_727.string(item_725);
        }
        list_726.finish();
    }
    #[allow(unused_mut)]
    let mut scope_728 = writer.prefix("RemoveUserGroups");
    if let Some(var_729) = &input.remove_user_groups {
        scope_728.boolean(*var_729);
    }
    #[allow(unused_mut)]
    let mut scope_730 = writer.prefix("LogDeliveryConfigurations");
    if let Some(var_731) = &input.log_delivery_configurations {
        let mut list_733 = scope_730.start_list(false, Some("LogDeliveryConfigurationRequest"));
        for item_732 in var_731 {
            #[allow(unused_mut)]
            let mut entry_734 = list_733.entry();
            crate::query_ser::serialize_structure_crate_model_log_delivery_configuration_request(
                entry_734, item_732,
            )?;
        }
        list_733.finish();
    }
    writer.finish();
    Ok(aws_smithy_http::body::SdkBody::from(out))
}

pub const fn values() -> &'static [&'static str]

Returns all the &str values of the enum members.

Trait Implementations

impl AsRef<str> for AuthTokenUpdateStrategyType

fn as_ref(&self) -> &str

Converts this type into a shared reference of the (usually inferred) input type.

impl Clone for AuthTokenUpdateStrategyType

fn clone(&self) -> AuthTokenUpdateStrategyType

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for AuthTokenUpdateStrategyType

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

Formats the value using the given formatter.

impl From<&str> for AuthTokenUpdateStrategyType

fn from(s: &str) -> Self

Converts to this type from the input type.

impl FromStr for AuthTokenUpdateStrategyType

type Err = Infallible

The associated error which can be returned from parsing.

fn from_str(s: &str) -> Result<Self, Self::Err>

Parses a string s to return a value of this type.

impl Hash for AuthTokenUpdateStrategyType

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)where
    H: Hasher,
    Self: Sized,

Feeds a slice of this type into the given Hasher.

impl Ord for AuthTokenUpdateStrategyType

fn cmp(&self, other: &AuthTokenUpdateStrategyType) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Selfwhere
    Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Selfwhere
    Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Selfwhere
    Self: Sized + PartialOrd<Self>,

Restrict a value to a certain interval.

impl PartialEq<AuthTokenUpdateStrategyType> for AuthTokenUpdateStrategyType

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

This method tests for self and other values to be equal, and is used by ==.

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

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl PartialOrd<AuthTokenUpdateStrategyType> for AuthTokenUpdateStrategyType

fn partial_cmp(&self, other: &AuthTokenUpdateStrategyType) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

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

This method tests less than (for self and other) and is used by the < operator.

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

This method tests less than or equal to (for self and other) and is used by the <= operator.

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

This method tests greater than (for self and other) and is used by the > operator.

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

This method tests greater than or equal to (for self and other) and is used by the >= operator.

impl Eq for AuthTokenUpdateStrategyType

impl StructuralEq for AuthTokenUpdateStrategyType

impl StructuralPartialEq for AuthTokenUpdateStrategyType