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0001 /* 0002 * Licensed to the Apache Software Foundation (ASF) under one or more 0003 * contributor license agreements. See the NOTICE file distributed with 0004 * this work for additional information regarding copyright ownership. 0005 * The ASF licenses this file to You under the Apache License, Version 2.0 0006 * (the "License"); you may not use this file except in compliance with 0007 * the License. You may obtain a copy of the License at 0008 * 0009 * http://www.apache.org/licenses/LICENSE-2.0 0010 * 0011 * Unless required by applicable law or agreed to in writing, software 0012 * distributed under the License is distributed on an "AS IS" BASIS, 0013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 0014 * See the License for the specific language governing permissions and 0015 * limitations under the License. 0016 */ 0017 0018 package org.apache.spark.sql.api.java; 0019 0020 import java.io.Serializable; 0021 0022 import org.apache.spark.annotation.Stable; 0023 0024 /** 0025 * A Spark SQL UDF that has 4 arguments. 0026 */ 0027 @Stable 0028 public interface UDF4<T1, T2, T3, T4, R> extends Serializable { 0029 R call(T1 t1, T2 t2, T3 t3, T4 t4) throws Exception; 0030 }
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