/*
* Copyright 2015 IBM Corp.
*
* 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.
*/
var Utils = require('../utils.js');
var DataSet = require('./Dataset');
/**
* @constructor
* @memberof module:eclairjs/sql
* @classdesc A distributed collection of data organized into named columns. A DataFrame is equivalent to a relational table in Spark SQL.
* @example
* var people = sqlContext.read.parquet("...")
* @example
* // Once created, it can be manipulated using the various domain-specific-language (DSL) functions defined in:
* // DataFrame (this class), Column, and functions.
* // To select a column from the data frame:
* var ageCol = people("age")
*/
function DataFrame(kernelP, refIdP) {
this.kernelP = kernelP;
this.refIdP = refIdP;
}
DataFrame.prototype = Object.create(DataSet.prototype);
DataFrame.prototype.constructor = DataFrame;
DataFrame.moduleLocation = '/sql/DataFrame';
module.exports = DataFrame;