szehon-ho commented on code in PR #6365: URL: https://github.com/apache/iceberg/pull/6365#discussion_r1051251356
########## core/src/main/java/org/apache/iceberg/AbstractTableScan.java: ########## @@ -0,0 +1,173 @@ +/* + * 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; + +import java.util.List; +import java.util.Map; +import java.util.stream.Collectors; +import org.apache.iceberg.events.Listeners; +import org.apache.iceberg.events.ScanEvent; +import org.apache.iceberg.expressions.ExpressionUtil; +import org.apache.iceberg.io.CloseableIterable; +import org.apache.iceberg.metrics.DefaultMetricsContext; +import org.apache.iceberg.metrics.ImmutableScanReport; +import org.apache.iceberg.metrics.ScanMetrics; +import org.apache.iceberg.metrics.ScanMetricsResult; +import org.apache.iceberg.metrics.ScanReport; +import org.apache.iceberg.metrics.Timer; +import org.apache.iceberg.relocated.com.google.common.base.MoreObjects; +import org.apache.iceberg.relocated.com.google.common.base.Preconditions; +import org.apache.iceberg.relocated.com.google.common.collect.Lists; +import org.apache.iceberg.relocated.com.google.common.collect.Maps; +import org.apache.iceberg.types.TypeUtil; +import org.apache.iceberg.util.DateTimeUtil; +import org.apache.iceberg.util.SnapshotUtil; +import org.apache.iceberg.util.TableScanUtil; +import org.slf4j.Logger; +import org.slf4j.LoggerFactory; + +public abstract class AbstractTableScan<ThisT, T extends ScanTask, C extends ScanTaskGroup<T>> Review Comment: So this class is the parent of BaseTableScan and PositionDeleteTableScan and most of the logic is moved from BaseTableScan to share it. Im not too sure what to do about the names. At this point BaseTableScan is more like an empty wrapper that serves to parameterize T with FileScanTask. Note: Im not happy with the bounds of T here (ideally can be T extends ContentScanTask). But as PositionDeleteScanTask has to implement BatchScan , that would conflict with BatchScan's hard coded "ScanTask" parameter of Scan. -- 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: issues-unsubscr...@iceberg.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org --------------------------------------------------------------------- To unsubscribe, e-mail: issues-unsubscr...@iceberg.apache.org For additional commands, e-mail: issues-h...@iceberg.apache.org
