60 lines
1.7 KiB
JavaScript
60 lines
1.7 KiB
JavaScript
/*
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* get_versionstamp.js
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*
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* This source file is part of the FoundationDB open source project
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*
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* Copyright 2013-2018 Apple Inc. and the FoundationDB project authors
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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var bufferEqual = function (a, b) {
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if (!Buffer.isBuffer(a)) return undefined;
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if (!Buffer.isBuffer(b)) return undefined;
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if (typeof a.equals === 'function') return a.equals(b);
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if (a.length !== b.length) return false;
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for (var i = 0; i < a.length; i++) {
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if (a[i] !== b[i]) return false;
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}
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return true;
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};
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var fdb = require('../lib/fdb').apiVersion(410);
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var db = fdb.open(null, null)
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var tr = db.createTransaction();
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tr.getVersionstamp(function(error, vs) {
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db.get('foo', function(error, val) {
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if(bufferEqual(val, vs))
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console.log('versionstamps match!')
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else {
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console.log("versionstamps don't match!")
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console.log("database verionstamp: " + val)
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console.log("transaction versionstamp: " + vs)
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}
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});
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});
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tr.setVersionstampedValue('foo', 'blahblahbl')
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tr.commit(function(err) {
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if(err)
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console.log('commit error', err);
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console.log(tr.getCommittedVersion())
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});
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