huaxingao commented on code in PR #15994: URL: https://github.com/apache/iceberg/pull/15994#discussion_r3114160707
########## api/src/main/java/org/apache/iceberg/udf/UdfParameter.java: ########## @@ -0,0 +1,38 @@ +/* + * 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.iceberg.udf; + +import javax.annotation.Nullable; + +/** A parameter declared in a UDF definition. */ +public interface UdfParameter { + + /** The parameter name. */ + String name(); + + /** + * The parameter data type, encoded as a type string for primitives/semi-structured types or as a + * JSON object for nested types (struct, list, map). + */ + Object type(); Review Comment: UDF types in the spec are based on Iceberg types but don't include field IDs, for example, list only has type and element, and struct fields only have name and type (no element-id or field-id). So Iceberg's Type (which requires field IDs for nested types) doesn't map directly. I added a `UdfType` class that wraps either a primitive type string or a nested type structure, so no raw object is used any more. Does this approach look good to you? -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected] --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
