Struct ChoiceBuilder 

pub struct ChoiceBuilder { /* private fields */ }

Builder for a .choice() … .end_choice() block.

Accumulates when clauses and an optional otherwise clause. Cannot call .build() until .end_choice() is called.

Implementations

impl ChoiceBuilder

pub fn when<F>(self, predicate: F) -> WhenBuilder

where F: Fn(&Exchange) -> bool + Send + Sync + 'static,

Open a when clause. Only exchanges matching predicate will be processed by the steps inside the .when() … .end_when() scope.

pub fn otherwise(self) -> OtherwiseBuilder

Open an otherwise clause. Executed when no when predicate matched.

Only one otherwise is allowed per choice. Call this after all .when() clauses.

pub fn end_choice(self) -> RouteBuilder

Close the choice scope. Packages all accumulated when clauses and optional otherwise into a BuilderStep::Choice and returns the parent RouteBuilder.