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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.spark.api.java.function
import scala.runtime.AbstractFunction2
/**
* Subclass of Function2 for ease of calling from Java. The main thing it does is re-expose the
* apply() method as call() and declare that it can throw Exception (since AbstractFunction2.apply
* isn't marked to allow that).
*/
private[spark] abstract class WrappedFunction2[T1, T2, R] extends AbstractFunction2[T1, T2, R] {
@throws(classOf[Exception])
def call(t1: T1, t2: T2): R
final def apply(t1: T1, t2: T2): R = call(t1, t2)
}
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