cgivre commented on a change in pull request #2414: URL: https://github.com/apache/drill/pull/2414#discussion_r779691065
########## File path: contrib/storage-http/src/main/java/org/apache/drill/exec/store/http/paginator/Paginator.java ########## @@ -0,0 +1,131 @@ +/* + * 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.drill.exec.store.http.paginator; + +import okhttp3.HttpUrl; +import okhttp3.HttpUrl.Builder; +import org.slf4j.Logger; +import org.slf4j.LoggerFactory; + +import java.util.List; + +/** + * This class is the abstraction for the Paginator class. There are + * different pagination methods, however, all essentially require the query + * engine to generate URLs to retrieve the next batch of data and also + * to determine whether the URL has more data. + * + * The Offset and Page paginators work either with a limit or without, but function + * slightly differently. If a limit is specified and pushed down, the paginator will + * generate a list of URLs with the appropriate pagination parameters. In the future + * this could be parallelized, however in the V1 all these requests are run in series. + */ +public abstract class Paginator { Review comment: I did try this, but it forces the downstream paginators to implement the `next` and `hasMore` whereas without the `Iterable` those methods can be contained in the `Pagintaor` class. Does that make sense? -- 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]
