@@ -0,0 +1,1933 @@
+/*%0A * Licensed to the Apache Software Foundation (ASF) under one%0A * or more contributor license agreements.  See the NOTICE file%0A * distributed with this work for additional information%0A * regarding copyright ownership.  The ASF licenses this file%0A * to you under the Apache License, Version 2.0 (the%0A * %22License%22); you may not use this file except in compliance%0A * with the License.  You may obtain a copy of the License at%0A *%0A *     http://www.apache.org/licenses/LICENSE-2.0%0A *%0A * Unless required by applicable law or agreed to in writing, software%0A * distributed under the License is distributed on an %22AS IS%22 BASIS,%0A * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.%0A * See the License for the specific language governing permissions and%0A * limitations under the License.%0A */%0A%0Apackage org.apache.flink.table.types.utils;%0A%0Aimport org.apache.flink.annotation.Internal;%0Aimport org.apache.flink.table.types.AtomicDataType;%0Aimport org.apache.flink.table.types.CollectionDataType;%0Aimport org.apache.flink.table.types.DataType;%0Aimport org.apache.flink.table.types.DataTypeVisitor;%0Aimport org.apache.flink.table.types.FieldsDataType;%0Aimport org.apache.flink.table.types.KeyValueDataType;%0A%0A/**%0A * Implementation of %7B@link DataTypeVisitor%7D that redirects all calls to%0A * %7B@link DataTypeDefaultVisitor#defaultMethod(DataType)%7D.%0A */%0A@Internal%0Apublic abstract class DataTypeDefaultVisitor%3CR%3E implements DataTypeVisitor%3CR%3E%7B%0A%0A%09@Override%0A%09public R visit(AtomicDataType atomicDataType) %7B%0A%09%09return defaultMethod(atomicDataType);%0A%09%7D%0A%0A%09@Override%0A%09public R visit(CollectionDataType collectionDataType) %7B%0A%09%09return defaultMethod(collectionDataType);%0A%09%7D%0A%0A%09@Override%0A%09public R visit(FieldsDataType fieldsDataType) %7B%0A%09%09return defaultMethod(fieldsDataType);%0A%09%7D%0A%0A%09@Override%0A%09public R visit(KeyValueDataType keyValueDataType) %7B%0A%09%09return defaultMethod(keyValueDataType);%0A%09%7D%0A%0A%09protected abstract R defaultMethod(DataType dataType);%0A%7D%0A

Add a default data type visitor