node-query/lib/Adapter.js

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'use strict';
/**
* Class that wraps database connection libraries
*
* @private
* @param {Object} instance - The connection object
*/
class Adapter {
/**
* Invoke an adapter
*
* @constructor
* @param {Object} instance - The connection object
*/
constructor(instance) {
this.instance = instance;
}
/**
* Run the sql query as a prepared statement
*
* @param {String} sql - The sql with placeholders
* @param {Array} params - The values to insert into the query
* @param {Function} [callback] - Callback to run when a response is recieved
* @return {void|Promise} - returns a promise if no callback is passed
*/
execute(/*sql, params, callback*/) {
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throw new Error('Correct adapter not defined for query execution');
}
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/**
* Close the current database connection
* @return {void}
*/
close() {
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this.instance.end();
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}
}
module.exports = Adapter;