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The following commit(s) were added to refs/heads/master by this push: new b1fcfe9 [BEAM-10925] Add UdfProvider interface. new e4ee5f5 Merge pull request #13587 from ibzib/udf-provider b1fcfe9 is described below commit b1fcfe9f69ac59880586a909544c7619ffcb9e86 Author: Kyle Weaver <kcwea...@google.com> AuthorDate: Mon Dec 21 11:27:29 2020 -0800 [BEAM-10925] Add UdfProvider interface. --- .../beam/sdk/extensions/sql/udf/UdfProvider.java | 37 ++++++++++++++++++++++ 1 file changed, 37 insertions(+) diff --git a/sdks/java/extensions/sql/udf/src/main/java/org/apache/beam/sdk/extensions/sql/udf/UdfProvider.java b/sdks/java/extensions/sql/udf/src/main/java/org/apache/beam/sdk/extensions/sql/udf/UdfProvider.java new file mode 100644 index 0000000..fe8b5b5 --- /dev/null +++ b/sdks/java/extensions/sql/udf/src/main/java/org/apache/beam/sdk/extensions/sql/udf/UdfProvider.java @@ -0,0 +1,37 @@ +/* + * 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.udf; + +import java.util.Collections; +import java.util.Map; + +/** + * Provider for user-defined functions written in Java. Implementations should be annotated with + * {@link com.google.auto.service.AutoService}. + */ +public interface UdfProvider { + /** Maps function names to scalar function implementations. */ + default Map<String, ScalarFn> userDefinedScalarFunctions() { + return Collections.emptyMap(); + } + + /** Maps function names to aggregate function implementations. */ + default Map<String, AggregateFn<?, ?, ?>> userDefinedAggregateFunctions() { + return Collections.emptyMap(); + } +}