org.apache.flink.table.runtime.conversion.CRowToJavaTupleMapFunction.scala Maven / Gradle / Ivy

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This module bridges Table/SQL API and runtime. It contains all resources that are required during pre-flight and runtime phase.

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/*
 * 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.flink.table.runtime.conversion

import org.apache.flink.api.common.functions.MapFunction
import org.apache.flink.api.java.tuple.{Tuple2 => JTuple2}
import org.apache.flink.table.runtime.types.CRow
import org.apache.flink.types.Row

import _root_.java.lang.{Boolean => JBool}

/**
  * Convert [[CRow]] to a [[JTuple2]] containing a [[Row]].
  */
class CRowToJavaTupleMapFunction extends MapFunction[CRow, JTuple2[JBool, Row]] {

  val out: JTuple2[JBool, Row] = new JTuple2(true.asInstanceOf[JBool], null.asInstanceOf[Row])

  override def map(cRow: CRow): JTuple2[JBool, Row] = {
    out.f0 = cRow.change
    out.f1 = cRow.row
    out
  }
}