Struct Topic 

pub struct Topic;

Reads the source topic name.

Trait Implementations

impl Clone for Topic

fn clone(&self) -> Topic

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl ContextField for Topic

type Context = KafkaContext

The per-delivery context type this key reads from.

type Value = String

The owned value the key yields.

fn read(self, src: &KafkaContext) -> String

Reads this key’s field out of src. Named apart from Field::get so a key implementing both traits stays unambiguous to call.

impl Copy for Topic

impl Debug for Topic

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

Formats the value using the given formatter.

impl Default for Topic

fn default() -> Topic

Returns the “default value” for a type.

impl Eq for Topic

impl Field<KafkaContext> for Topic

type Value<'a> = &'a str

The value read through this key, borrowed from the source for 'a.

fn get(self, src: &KafkaContext) -> &str

Reads this key’s field out of src.

impl PartialEq for Topic

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for Topic