| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you 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. |
| */ |
| |
| package org.apache.wayang.api.dataquanta.builder |
| |
| import org.apache.wayang.api.dataquanta.{DataQuanta, DataQuantaBuilder} |
| import org.apache.wayang.api.{JavaPlanBuilder, dataSetType} |
| import org.apache.wayang.basic.data.{Tuple2 => WT2} |
| /** |
| * [[DataQuantaBuilder]] implementation for [[org.apache.wayang.basic.operators.CartesianOperator]]s. |
| * |
| * @param inputDataQuanta0 [[DataQuantaBuilder]] for the first input [[DataQuanta]] |
| * @param inputDataQuanta1 [[DataQuantaBuilder]] for the first input [[DataQuanta]] |
| */ |
| class CartesianDataQuantaBuilder[In0, In1](inputDataQuanta0: DataQuantaBuilder[_, In0], |
| inputDataQuanta1: DataQuantaBuilder[_, In1]) |
| (implicit javaPlanBuilder: JavaPlanBuilder) |
| extends BasicDataQuantaBuilder[CartesianDataQuantaBuilder[In0, In1], WT2[In0, In1]] { |
| |
| // Since we are currently not looking at type parameters, we can statically determine the output type. |
| locally { |
| this.outputTypeTrap.dataSetType = dataSetType[WT2[_, _]] |
| } |
| |
| override protected def build = |
| inputDataQuanta0.dataQuanta().cartesian(inputDataQuanta1.dataQuanta())(inputDataQuanta1.classTag) |
| |
| } |