38 lines
955 B
JavaScript
38 lines
955 B
JavaScript
/**
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@license
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Copyright (c) 2022 trading_peter
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This program is available under Apache License Version 2.0
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*/
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const data = new Map();
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const instancesPerKey = new Map();
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export const DataStore = new class {
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addInstance(instance, key, targetProperty) {
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if (instancesPerKey.has(key) === false) {
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instancesPerKey.set(key, [ { instance, targetProperty } ]);
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} else {
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instancesPerKey.get(key).push({ instance, targetProperty });
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}
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if (data.has(key)) {
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this._notifyInstance(instance, key, data.get(key), targetProperty);
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}
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}
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writeKey(key, value) {
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data.set(key, value);
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const instances = instancesPerKey.get(key);
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if (Array.isArray(instances)) {
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instances.forEach(entry => {
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this._notifyInstance(entry.instance, key, value, entry.targetProperty);
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});
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}
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}
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_notifyInstance(instance, key, value, targetProperty) {
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instance._storeUpdated(key, value, targetProperty);
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}
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};
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