Struct AplOptions 

pub struct AplOptions {
    pub dispatch_cache: Arc<DispatchCache>,
    pub session_store: Arc<dyn SessionStore>,
    pub pdps: Vec<Arc<dyn PdpResolver>>,
    pub pdp_factories: Vec<Arc<dyn PdpFactory>>,
    pub session_store_factories: Vec<Arc<dyn SessionStoreFactory>>,
    pub base_capabilities: Option<HashSet<String>>,
}

Configuration for register_apl. All runtime collaborators APL needs to do its work are funneled through here so the call site reads as a single block instead of a multi-step builder.

Fields

dispatch_cache: Arc<DispatchCache>

Shared dispatch-plan cache. One Arc<DispatchCache> per host instance — clones are cheap (refcount bump) and the cache is internally synchronized.

session_store: Arc<dyn SessionStore>

Pluggable session-scoped state. MemorySessionStore is the default in-process backend; production hosts swap in Redis / DynamoDB-backed impls.

pdps: Vec<Arc<dyn PdpResolver>>

Zero or more code-supplied PDP resolvers. Each is registered into the visitor’s internal PdpRouter, so pdp(...) steps dispatch by dialect across this list and any resolvers the visitor builds from global.apl.pdp[] config entries. An empty list combined with empty pdp_factories means no PDP is wired — routes that call pdp(...) surface PdpError::NoResolver at evaluation time, which is the correct behavior for “you forgot to configure your policy decision point.”

pdp_factories: Vec<Arc<dyn PdpFactory>>

PDP factories the visitor consults when it encounters a global.apl.pdp[] entry. Each factory advertises a kind() string that matches the YAML block’s kind: field — e.g. cedar-direct, opa. An empty list disables config-driven PDP wiring; hosts can still supply resolvers via pdps.

session_store_factories: Vec<Arc<dyn SessionStoreFactory>>

Session-store factories the visitor consults when it encounters a global.apl.session_store block. Each factory advertises a kind() string matching the block’s kind: field — e.g. valkey. An empty list keeps the constructor-supplied session_store (the MemorySessionStore default) active, so existing deployments are unaffected.

base_capabilities: Option<HashSet<String>>

Override the visitor’s baseline capabilities for installed AplRouteHandlers. None uses the visitor’s default (read-only across the common attribute namespaces); Some(set) replaces it entirely. The per-route plugin capability union is added on top regardless — this only controls the baseline.

Set to Some(HashSet::new()) for strict deployments where only plugin-declared caps should be granted.

Implementations

impl AplOptions

pub fn in_process() -> Self

Minimal options — in-process dispatch cache + memory session store, no PDP, default baseline capabilities. Useful for tests and single-process demos.