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25 lines
838 B
25 lines
838 B
12 years ago
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var BinarySearchTree = require('binary-search-tree').BinarySearchTree;
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/**
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* Create a new index
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* @param {String} options.fieldName On which field should the index apply
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* @param {Datastore} options.datastore Datastore on which the index is created
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* @param {Boolean} options.unique Optional, enforce a unique constraint (default: false)
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* @param {Boolean} options.sparse Optional, allow a sparse index (we can have documents for which fieldName is undefined) (default: false)
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*/
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function Index (options) {
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this.fieldName = options.fieldName;
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this.datastore = options.datastore;
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this.unique = options.unique || false;
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this.sparse = options.unique || false;
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if (this.sparse) { this.fieldUndefined = []; } // Will store all elements for which the indexed field is not defined
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}
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// Interface
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module.exports = Index;
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