flink-table/flink-table-api-java/src/test/java/org/apache/flink/table/functions/TestGenericUDF.java

/*
 * 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.flink.table.functions;

import org.apache.flink.table.catalog.DataTypeFactory;
import org.apache.flink.table.types.inference.TypeInference;

import java.util.Set;

/** UDF definition for test function create, alert and drop in catalog. */
public class TestGenericUDF extends UserDefinedFunction {

    @Override
    public FunctionKind getKind() {
        return FunctionKind.SCALAR;
    }

    @Override
    public TypeInference getTypeInference(DataTypeFactory typeFactory) {
        throw new UnsupportedOperationException();
    }

    @Override
    public Set<FunctionRequirement> getRequirements() {
        return null;
    }

    @Override
    public boolean isDeterministic() {
        return false;
    }
}