@thermopylae/lib.cache/dist/policies/expiration/proactive.js

Modular cache.

import { AbsoluteExpirationPolicy } from "./absolute.js";
import { EXPIRES_AT_SYM, INFINITE_EXPIRATION } from "../../constants.js";
import { HeapGarbageCollector } from "../../garbage-collectors/heap-gc.js";
class ProactiveExpirationPolicy extends AbsoluteExpirationPolicy {
    gc;
    constructor(gc) {
        super();
        this.gc = gc || new HeapGarbageCollector();
        this.gc.setEntryExpiredCallback((expiredEntry) => {
            this.deleteFromCache(expiredEntry);
        });
    }
    get size() {
        return this.gc.size;
    }
    onHit() {
        return 1 ;
    }
    onSet(entry, options) {
        if (options == null || ProactiveExpirationPolicy.isNonExpirable(options)) {
            return;
        }
        ProactiveExpirationPolicy.setEntryExpiration(entry, options.expiresAfter, options.expiresFrom);
        this.gc.manage(entry);
    }
    onUpdate(entry, options) {
        if (options == null || options.expiresAfter == null) {
            return undefined;
        }
        if (entry[EXPIRES_AT_SYM]) {
            if (options.expiresAfter === INFINITE_EXPIRATION) {
                return this.onDelete(entry); 
            }
            const oldExpiration = entry[EXPIRES_AT_SYM]; 
            ProactiveExpirationPolicy.setEntryExpiration(entry, options.expiresAfter, options.expiresFrom); 
            if (oldExpiration === entry[EXPIRES_AT_SYM]) {
                return undefined;
            }
            return this.gc.update(oldExpiration, entry); 
        }
        if (options.expiresAfter !== INFINITE_EXPIRATION) {
            ProactiveExpirationPolicy.setEntryExpiration(entry, options.expiresAfter, options.expiresFrom);
            return this.gc.manage(entry);
        }
        return undefined; 
    }
    onDelete(entry) {
        this.gc.leave(entry); 
        super.onDelete(entry); 
    }
    onClear() {
        this.gc.clear();
    }
    isIdle() {
        return this.gc.idle;
    }
}
export { ProactiveExpirationPolicy };