1 | var util = require('../core').util;
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2 | var typeOf = require('./types').typeOf;
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3 |
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4 |
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5 |
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6 |
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7 | var memberTypeToSetType = {
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8 | 'String': 'String',
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9 | 'Number': 'Number',
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10 | 'NumberValue': 'Number',
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11 | 'Binary': 'Binary'
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12 | };
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13 |
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14 |
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15 |
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16 |
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17 | var DynamoDBSet = util.inherit({
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18 |
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19 | constructor: function Set(list, options) {
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20 | options = options || {};
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21 | this.wrapperName = 'Set';
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22 | this.initialize(list, options.validate);
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23 | },
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24 |
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25 | initialize: function(list, validate) {
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26 | var self = this;
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27 | self.values = [].concat(list);
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28 | self.detectType();
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29 | if (validate) {
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30 | self.validate();
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31 | }
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32 | },
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33 |
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34 | detectType: function() {
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35 | this.type = memberTypeToSetType[typeOf(this.values[0])];
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36 | if (!this.type) {
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37 | throw util.error(new Error(), {
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38 | code: 'InvalidSetType',
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39 | message: 'Sets can contain string, number, or binary values'
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40 | });
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41 | }
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42 | },
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43 |
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44 | validate: function() {
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45 | var self = this;
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46 | var length = self.values.length;
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47 | var values = self.values;
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48 | for (var i = 0; i < length; i++) {
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49 | if (memberTypeToSetType[typeOf(values[i])] !== self.type) {
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50 | throw util.error(new Error(), {
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51 | code: 'InvalidType',
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52 | message: self.type + ' Set contains ' + typeOf(values[i]) + ' value'
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53 | });
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54 | }
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55 | }
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56 | }
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57 |
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58 | });
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59 |
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60 |
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61 |
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62 |
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63 | module.exports = DynamoDBSet;
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