forked from apache/beam
/
UdfTestProvider.java
40 lines (37 loc) · 1.47 KB
/
UdfTestProvider.java
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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.beam.sdk.extensions.sql.provider;
import com.google.auto.service.AutoService;
import com.google.common.collect.ImmutableMap;
import java.util.Map;
import org.apache.beam.sdk.extensions.sql.udf.ScalarFn;
import org.apache.beam.sdk.extensions.sql.udf.UdfProvider;
/** Defines Java UDFs for use in tests. */
@AutoService(UdfProvider.class)
public class UdfTestProvider implements UdfProvider {
@Override
public Map<String, ScalarFn> userDefinedScalarFunctions() {
return ImmutableMap.of("helloWorld", new HelloWorldFn());
}
public static class HelloWorldFn extends ScalarFn {
@ApplyMethod
public String helloWorld() {
return "Hello world!";
}
}
}