| /* |
| * 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.beam.sdk.extensions.sql.meta.provider; |
| |
| import java.util.Collections; |
| import java.util.Map; |
| import org.apache.beam.sdk.extensions.sql.BeamSqlUdf; |
| import org.apache.beam.sdk.transforms.Combine; |
| import org.apache.beam.sdk.transforms.SerializableFunction; |
| |
| /** Provider for UDF and UDAF. */ |
| public interface UdfUdafProvider { |
| /** For UDFs implement {@link BeamSqlUdf}. */ |
| default Map<String, Class<? extends BeamSqlUdf>> getBeamSqlUdfs() { |
| return Collections.emptyMap(); |
| } |
| |
| /** For UDFs implement {@link SerializableFunction}. */ |
| default Map<String, SerializableFunction<?, ?>> getSerializableFunctionUdfs() { |
| return Collections.emptyMap(); |
| } |
| |
| default Map<String, Combine.CombineFn> getUdafs() { |
| return Collections.emptyMap(); |
| } |
| } |