simple-node-memory-cache/dist/strategies/SimpleRR.js

In-memory object cache written in typescript for Node that supports multiple eviction strategies.

"use strict";
var __extends = (this && this.__extends) || (function () {
    var extendStatics = function (d, b) {
        extendStatics = Object.setPrototypeOf ||
            ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
        return extendStatics(d, b);
    };
    return function (d, b) {
        extendStatics(d, b);
        function __() { this.constructor = d; }
        d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
    };
})();
Object.defineProperty(exports, "__esModule", { value: true });
var Cache_1 = require("../cacheBase/Cache");
var SimpleRR = /** @class */ (function (_super) {
    __extends(SimpleRR, _super);
    function SimpleRR() {
        var _this = _super !== null && _super.apply(this, arguments) || this;
        _this.keyArray = [];
        return _this;
    }
    SimpleRR.prototype.get = function (key) {
        return this.cache.get(key);
    };
    SimpleRR.prototype.set = function (key, value) {
        if (this.keyArray.length >= this._maxObjectsInCache && !this.cache.has(key)) {
            var itemToRemove = Math.floor(Math.random() * 5);
            this.cache.delete(this.keyArray.splice(itemToRemove, 1)[0]);
        }
        this.keyArray.push(key);
        return this.cache.set(key, [value, Date.now(), 0]);
    };
    SimpleRR.prototype.clear = function () {
        _super.prototype.clear.call(this);
        this.keyArray = [];
    };
    return SimpleRR;
}(Cache_1.SimpleCache));
exports.SimpleRR = SimpleRR;