import { Seconds, UnixTimestamp } from '@thermopylae/core.declarations';
import { EntryValidity } from '../../contracts/cache-replacement-policy';
import { AbstractExpirationPolicy, ExpirableCacheEntry } from './abstract';
interface AbsoluteExpirationPolicyArgumentsBundle {
    /**
     * Time to live for `key` in seconds. <br>
     * When inserting the key, use {@link INFINITE_EXPIRATION} or omit this option to specify that the key should not expire. <br/>
     * -----------------------------------------------------
     * When ttl is updated, depending on the value of `expiresAfter` param, following behaviours will occur: <br/>
     *
     * Value						| Behaviour
     * ---------------------------- | -------------------------------
     * `undefined`  				| Entry ttl won't be updated and will remain the same.
     * {@link INFINITE_EXPIRATION}  | Entry ttl is discarded, so that it will never expire.
     * ttl of old value				| Entry ttl won't be updated and will remain the same. Notice that timer is not reset, meaning that if old value remains to live `x` seconds, it will be evicted after `x` seconds.
     * ttl different from old value	| Entry ttl will be updated to the new ttl. Timer will be reset, so that new value remains to live `expiresAfter` seconds.
     */
    expiresAfter?: Seconds;
    /**
     * Timestamp from when ttl starts counting in seconds as Unix Timestamp. <br/>
     * Defaults to current unix timestamp when `expiresAfter` is given.
     */
    expiresFrom?: UnixTimestamp;
}
/**
 * @private
 */
declare abstract class AbsoluteExpirationPolicy<Key, Value, ArgumentsBundle extends AbsoluteExpirationPolicyArgumentsBundle> extends AbstractExpirationPolicy<Key, Value, ArgumentsBundle> {
    /**
     * @inheritDoc
     */
    onHit(entry: ExpirableCacheEntry<Key, Value>): EntryValidity;
    /**
     * @inheritDoc
     */
    onSet(entry: ExpirableCacheEntry<Key, Value>, options?: ArgumentsBundle): void;
    /**
     * @inheritDoc
     */
    onUpdate(entry: ExpirableCacheEntry<Key, Value>, options?: ArgumentsBundle): void;
    /**
     * @inheritDoc
     */
    onClear(): void;
    protected evictIfExpired(entry: ExpirableCacheEntry<Key, Value>): EntryValidity;
    protected static isNonExpirable(argumentsBundle: AbsoluteExpirationPolicyArgumentsBundle): boolean;
}
export { AbsoluteExpirationPolicy, AbsoluteExpirationPolicyArgumentsBundle };