aerospike
Version:
Aerospike Client Library
301 lines (288 loc) • 8.87 kB
JavaScript
// *****************************************************************************
// Copyright 2013-2024 Aerospike, Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License")
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
// *****************************************************************************
'use strict'
/**
* @class Record
* @classdesc Aerospike Record
*
*
*
* A record with the Aerospike database consists of one or more record "bins"
* (name-value pairs) and meta-data, including time-to-live and generation; a
* record is uniquely identified by it's key within a given namespace.
*
* @summary Construct a new Aerospike Record instance.
*
* @example <caption>Writing a new record with 5 bins while setting a record TTL.</caption>
*
* const Aerospike = require('aerospike')
*
* // INSERT HOSTNAME AND PORT NUMBER OF AEROSPIKE SERVER NODE HERE!
* var config = {
* hosts: '192.168.33.10:3000',
* // Timeouts disabled, latency dependent on server location. Configure as needed.
* policies: {
* write : new Aerospike.WritePolicy({socketTimeout : 0, totalTimeout : 0}),
* }
* }
*
* let bins = {
* int: 123,
* double: 3.1415,
* string: 'xyz',
* bytes: Buffer.from('hello world!'),
* list: [1, 2, 3],
* map: {num: 123, str: 'abc', list: ['a', 'b', 'c']}
* }
* let meta = {
* ttl: 386400 // 1 day
* }
* let key = new Aerospike.Key('test', 'demo', 'myKey')
*
* Aerospike.connect(config)
* .then(client => {
* return client.put(key, bins, meta)
* .then(() => {
* client.get(key)
* .then((record) => {
* console.log(record)
* client.close()
* })
* .catch(error => {
* console.log(record)
* client.close()
* return Promise.reject(error)
* })
* })
* .catch(error => {
* client.close()
* return Promise.reject(error)
* })
* })
* .catch(error => console.error('Error:', error))
*
* @example <caption>Fetching a single database record by it's key.</caption>
*
* const Aerospike = require('aerospike')
*
* // INSERT HOSTNAME AND PORT NUMBER OF AEROSPIKE SERVER NODE HERE!
* var config = {
* hosts: '192.168.33.10:3000',
* // Timeouts disabled, latency dependent on server location. Configure as needed.
* policies: {
* read : new Aerospike.ReadPolicy({socketTimeout : 0, totalTimeout : 0}),
* write : new Aerospike.WritePolicy({socketTimeout : 0, totalTimeout : 0}),
* }
* }
*
* let key = new Aerospike.Key('test', 'demo', 'myKey')
*
* Aerospike.connect(config)
* .then(client => {
* client.put(key, {tags : ['blue', 'pink']})
* .then(() => {
* client.get(key)
* .then(record => {
* console.info('Key:', record.key)
* console.info('Bins:', record.bins)
* console.info('TTL:', record.ttl)
* console.info('Gen:', record.gen)
* })
* .then(() => client.close())
* .catch(error => {
* client.close()
* return Promise.reject(error)
* })
* })
* .catch(error => {
* client.close()
* return Promise.reject(error)
* })
* })
* .catch(error => console.error('Error:', error))
*
* @since v5.0.0
*
* @example <caption>Fetching a batch of records.</caption>
*
* const Aerospike = require('aerospike')
* const op = Aerospike.operations
* // INSERT HOSTNAME AND PORT NUMBER OF AEROSPIKE SERVER NODE HERE!
* var config = {
* hosts: '192.168.33.10:3000',
* // Timeouts disabled, latency dependent on server location. Configure as needed.
* policies: {
* read : new Aerospike.ReadPolicy({socketTimeout : 0, totalTimeout : 0}),
* write : new Aerospike.WritePolicy({socketTimeout : 0, totalTimeout : 0}),
* batch : new Aerospike.BatchPolicy({socketTimeout : 0, totalTimeout : 0})
*
* }
* }
*
* var batchRecords = [
* { type: Aerospike.batchType.BATCH_READ,
* key: new Aerospike.Key('test', 'demo', 'key1'), bins: ['i', 's'] },
* { type: Aerospike.batchType.BATCH_READ,
* key: new Aerospike.Key('test', 'demo', 'key2'), readAllBins: true },
* { type: Aerospike.batchType.BATCH_READ,
* key: new Aerospike.Key('test', 'demo', 'key3'),
* ops:[
* op.read('blob-bin')
* ]}
* ]
* Aerospike.connect(config, function (error, client) {
* if (error) throw error
* client.batchRead(batchRecords, function (error, results) {
* if (error) throw error
* results.forEach(function (result) {
* console.log(result)
*
* })
* client.close()
* })
*
* })
*
* @since v5.0.0
*
* @example <caption>Applying functions on batch of records.</caption>
*
* const Aerospike = require('aerospike')
*
* // INSERT HOSTNAME AND PORT NUMBER OF AEROSPIKE SERVER NODE HERE!
* var config = {
* hosts: '192.168.33.10:3000',
* // Timeouts disabled, latency dependent on server location. Configure as needed.
* policies: {
* read : new Aerospike.ReadPolicy({socketTimeout : 0, totalTimeout : 0}),
* write : new Aerospike.WritePolicy({socketTimeout : 0, totalTimeout : 0}),
*
* }
* }
*
* const batchType = Aerospike.batchType
* var batchRecords = [
* { type: batchType.BATCH_READ,
* key: new Aerospike.Key('test', 'demo', 'key1'),
* bins: ['i', 's'] },
* { type: batchType.BATCH_READ,
* key: new Aerospike.Key('test', 'demo', 'key2'),
* readAllBins: true },
* { type: batchType.BATCH_APPLY,
* key: new Aerospike.Key('test', 'demo', 'key4'),
* policy: new Aerospike.BatchApplyPolicy({
* filterExpression: exp.eq(exp.binInt('i'), exp.int(37)),
* key: Aerospike.policy.key.SEND,
* commitLevel: Aerospike.policy.commitLevel.ALL,
* durableDelete: true
* }),
* udf: {
* module: 'udf',
* funcname: 'function1',
* args: [[1, 2, 3]]
* }
* },
* { type: batchType.BATCH_APPLY,
* key: new Aerospike.Key('test', 'demo', 'key5'),
* policy: new Aerospike.BatchApplyPolicy({
* filterExpression: exp.eq(exp.binInt('i'), exp.int(37)),
* key: Aerospike.policy.key.SEND,
* commitLevel: Aerospike.policy.commitLevel.ALL,
* durableDelete: true
* }),
* udf: {
* module: 'udf',
* funcname: 'function2',
* args: [[1, 2, 3]]
* }
* }
* ]
* Aerospike.connect(config, function (error, client) {
* if (error) throw error
* client.batchApply(batchRecords, udf, function (error, results) {
* if (error) throw error
* results.forEach(function (result) {
* console.log(result)
* })
* })
* })
*/
class Record {
/** @private */
constructor (key, bins, metadata, type, props) {
metadata = metadata || {}
props = props || {}
/**
* Unique record identifier.
*
* @member {Key} Record#key
*/
this.key = key
/**
* Map of bin name to bin value.
*
* @member {Object} Record#bins
*/
this.bins = bins
/**
* The record's remaining time-to-live in seconds, before the record will
* expire and be removed by the server.
*
* @member {number} Record#ttl
*/
this.ttl = metadata.ttl
/**
* Record modification count.
*
* @member {number} Record#gen
*/
this.gen = metadata.gen
/**
* Batch record type. Values: BATCH_READ, BATCH_WRITE, BATCH_APPLY or BATCH_REMOVE
*
* @member {number} Record#type
*/
this.type = type
/**
* Optional batch read/write/apply/remove policy
*
* @member {object} Record#policy
*/
this.policy = props.policy
/**
* batch read option
* If true, ignore bin_names and read all bins.
* If false and bin_names are set, read specified bin_names.
* If false and bin_names are not set, read record header (generation, expiration) only.
* @member {bool} Record#readAllBins
*/
this.readAllBins = props.readAllBins
/**
* Read or write operations for this key.
* For BATCH_READ, ops are mutually exclusive with bin_names.
*
* @member {object} Record#ops
*/
this.ops = props.ops
/**
* lua module, function and optional arg list udf object
*
* @member {object} Record#udf
*/
this.udf = props.udf
}
}
module.exports = Record