53 lines
1.6 KiB
JavaScript
53 lines
1.6 KiB
JavaScript
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/**
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* @param {number} transactionId
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* @param {UserCredentials} userCredentials
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* @param {EventStoreNodeConnection} connection
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* @constructor
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* @property {number} transactionId
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*/
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function EventStoreTransaction(transactionId, userCredentials, connection) {
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this._transactionId = transactionId;
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this._userCredentials = userCredentials;
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this._connection = connection;
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this._isCommitted = false;
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this._isRolledBack = false;
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}
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Object.defineProperty(EventStoreTransaction.prototype, 'transactionId', {
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get: function() {
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return this._transactionId;
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}
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});
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/**
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* Commit (async)
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* @returns {Promise.<WriteResult>}
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*/
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EventStoreTransaction.prototype.commit = function() {
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if (this._isRolledBack) throw new Error("Can't commit a rolledback transaction.");
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if (this._isCommitted) throw new Error("Transaction is already committed.");
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this._isCommitted = true;
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return this._connection.commitTransaction(this, this._userCredentials);
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};
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/**
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* Write events (async)
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* @param {Array.<EventData>} events
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* @returns {Promise}
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*/
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EventStoreTransaction.prototype.write = function(events) {
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if (this._isRolledBack) throw new Error("can't write to a rolledback transaction");
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if (this._isCommitted) throw new Error("Transaction is already committed");
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if (!Array.isArray(events)) throw new Error("events must be an array.");
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return this._connection.transactionalWrite(this, events);
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};
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/**
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* Rollback
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*/
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EventStoreTransaction.prototype.rollback = function() {
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if (this._isCommitted) throw new Error("Transaction is already committed");
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this._isRolledBack = true;
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};
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module.exports = EventStoreTransaction;
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