Module predicate 

Caching decision predicates.

This module provides the Predicate trait and PredicateResult enum for determining whether requests and responses should be cached.

Overview

Predicates are the core mechanism for controlling cache behavior. They evaluate a subject (request or response) and return whether it should be cached or passed through without caching.

Composability

Predicates are designed to be composed using logical combinators:

• Not - Inverts a predicate result
• Or - Either predicate returning Cacheable is sufficient

Chaining predicates sequentially provides AND semantics by default.

Re-exports

pub use combinators::And;

pub use combinators::Not;

pub use combinators::Or;

pub use combinators::PredicateExt;

pub use neutral::Neutral;

Modules

combinators

Logical combinators for composing predicates.

neutral

Neutral predicate that always returns Cacheable.

Enums

PredicateResult

Result of a predicate evaluation.

Traits

Predicate

Trait for evaluating whether a subject should be cached.