com.example.examples.CacheExample.scala Maven / Gradle / Ivy
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/*
* This file is part of the Mantik Project.
* Copyright (c) 2020-2021 Mantik UG (Haftungsbeschränkt)
* Authors: See AUTHORS file
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License version 3.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program.
*
* Additionally, the following linking exception is granted:
*
* If you modify this Program, or any covered work, by linking or
* combining it with other code, such other code is not for that reason
* alone subject to any of the requirements of the GNU Affero GPL
* version 3.
*
* You can be released from the requirements of the license by purchasing
* a commercial license.
*/
package com.example.examples
import ai.mantik.ds.{FundamentalType, TabularData}
import ai.mantik.ds.element.{Bundle, TabularBundle}
import ai.mantik.planner.{DataSet, PlanningContext}
object CacheExample extends ExampleBase {
override protected def run(implicit context: PlanningContext): Unit = {
val sample = DataSet.literal(
TabularBundle
.build(
TabularData("x" -> FundamentalType.Int32)
)
.row(1)
.row(2)
.row(3)
.result
)
val transformed = sample.select("select x + 1 as y").cached
println(transformed.fetch.run())
println(transformed.fetch.run())
val extraTransformation = transformed.select("select y + 1 as z")
println(extraTransformation.fetch.run())
}
}