BaseRouteReuseStrategy - Angular

This base route reuse strategy only reuses routes when the matched router configs are identical. This prevents components from being destroyed and recreated when just the route parameters, query parameters or fragment change (that is, the existing component is reused).

API

abstract class BaseRouteReuseStrategy implements RouteReuseStrategy {
  shouldDetach(route: ActivatedRouteSnapshot): boolean;
  store(route: ActivatedRouteSnapshot, detachedTree: DetachedRouteHandle): void;
  shouldAttach(route: ActivatedRouteSnapshot): boolean;
  retrieve(route: ActivatedRouteSnapshot): DetachedRouteHandle | null;
  shouldReuseRoute(future: ActivatedRouteSnapshot, curr: ActivatedRouteSnapshot): boolean;
  shouldDestroyInjector(route: Route): boolean;
}

shouldDetach

boolean

Whether the given route should detach for later reuse. Always returns false for BaseRouteReuseStrategy.

@paramrouteActivatedRouteSnapshot

@returnsboolean

store

void

A no-op; the route is never stored since this strategy never detaches routes for later re-use.

@paramrouteActivatedRouteSnapshot

@paramdetachedTreeDetachedRouteHandle

@returnsvoid

shouldAttach

boolean

Returns false, meaning the route (and its subtree) is never reattached

@paramrouteActivatedRouteSnapshot

@returnsboolean

retrieve

DetachedRouteHandle | null

Returns null because this strategy does not store routes for later re-use.

@paramrouteActivatedRouteSnapshot

@returnsDetachedRouteHandle | null

shouldReuseRoute

boolean

Determines if a route should be reused. This strategy returns true when the future route config and current route config are identical.

@paramfutureActivatedRouteSnapshot

@paramcurrActivatedRouteSnapshot

@returnsboolean

shouldDestroyInjector

boolean

Determines if the injector for the given route should be destroyed.

This method is called by the router when the RouteReuseStrategy is destroyed. If this method returns true, the router will destroy the injector for the given route.

@paramrouteRoute

@returnsboolean

Description

This strategy does not store any routes for later reuse.

Angular uses this strategy by default.

It can be used as a base class for custom route reuse strategies, i.e. you can create your own class that extends the BaseRouteReuseStrategy one.