Enum UserScramCredentialAlteration 

#[non_exhaustive]
pub enum UserScramCredentialAlteration {
    Upsertion(UserScramCredentialUpsertion),
    Deletion(UserScramCredentialDeletion),
}

A request to alter a user’s SASL/SCRAM credentials.

Java models this as an abstract base with the two concrete subclasses UserScramCredentialUpsertion and UserScramCredentialDeletion. Rust models the closed subclass hierarchy as an enum: the Java instanceof dispatch in KafkaAdminClient.alterUserScramCredentials becomes a match here, and the shared user() accessor of the abstract base becomes a method delegating to the active variant. This is faithful because the Java hierarchy is sealed (both subclasses live in the same package and there is no public subclassing contract).

See KIP-554: Add Broker-side SCRAM Config API.

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.

Upsertion(UserScramCredentialUpsertion)

An update/insertion of a credential (UserScramCredentialUpsertion).

Deletion(UserScramCredentialDeletion)

A deletion of a credential (UserScramCredentialDeletion).

Implementations

impl UserScramCredentialAlteration

pub fn user(&self) -> &str

Returns the always non-null user.

Mirrors UserScramCredentialAlteration.user().

Trait Implementations

impl Clone for UserScramCredentialAlteration

fn clone(&self) -> UserScramCredentialAlteration

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for UserScramCredentialAlteration

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

Formats the value using the given formatter.

impl From<UserScramCredentialDeletion> for UserScramCredentialAlteration

fn from(deletion: UserScramCredentialDeletion) -> Self

Converts to this type from the input type.

impl From<UserScramCredentialUpsertion> for UserScramCredentialAlteration

fn from(upsertion: UserScramCredentialUpsertion) -> Self

Converts to this type from the input type.