52 lines
1.2 KiB
JavaScript
Executable File
52 lines
1.2 KiB
JavaScript
Executable File
|
|
'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*/) {
|
|
throw new Error('Correct adapter not defined for query execution');
|
|
}
|
|
|
|
/**
|
|
* Transform the adapter's result into a standard format
|
|
*
|
|
* @param {*} originalResult - the original result object from the driver
|
|
* @return {Result} - the new result object
|
|
*/
|
|
transformResult(originalResult) {
|
|
throw new Error('Result transformer method not defined for current adapter');
|
|
}
|
|
|
|
/**
|
|
* Close the current database connection
|
|
* @return {void}
|
|
*/
|
|
close() {
|
|
this.instance.end();
|
|
}
|
|
}
|
|
|
|
module.exports = Adapter; |