bowenli86 commented on a change in pull request #8314: [FLINK-12365][table] Add stats related catalog APIs URL: https://github.com/apache/flink/pull/8314#discussion_r280134823
########## File path: flink-table/flink-table-common/src/main/java/org/apache/flink/table/catalog/stats/CatalogTableStatistics.java ########## @@ -0,0 +1,97 @@ +/* + * 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.catalog.stats; + +import java.util.HashMap; +import java.util.Map; + +/** + * Statistics for a non-partitioned table or a partition of a partitioned table. + */ +public class CatalogTableStatistics { + public static final CatalogTableStatistics UNKNOWN = new CatalogTableStatistics(0, 0, 0, 0); + + /** + * The number of rows in the table or partition. + */ + private final long rowCount; + + /** + * The number of files on disk. + */ + private final int fileCount; + + /** + * The total size in bytes. + */ + private final long totalSize; + + /** + * The raw data size (size when loaded in memory) in bytes. + */ + private final long rawDataSize; + + private Map<String, String> properties; + + public CatalogTableStatistics(long rowCount, int fileCount, long totalSize, long rawDataSize) { + this(rowCount, fileCount, totalSize, rawDataSize, new HashMap<>()); + } + + public CatalogTableStatistics(long rowCount, int fileCount, long totalSize, long rawDataSize, + Map<String, String> properties) { + this.rowCount = rowCount; + this.fileCount = fileCount; + this.totalSize = totalSize; + this.rawDataSize = rawDataSize; + this.properties = properties; + } + + /** + * The number of rows. + */ + public long getRowCount() { + return this.rowCount; + } + + public int getFileCount() { + return this.fileCount; + } + + public long getTotalSize() { + return this.totalSize; + } + + public long getRawDataSize() { + return this.rawDataSize; + } + + public Map<String, String> getProperties() { + return this.properties; + } + + /** + * Create a deep copy of "this" instance. + * @return a deep copy Review comment: nit: please add an empty line between comment and annotation ---------------------------------------------------------------- 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. For queries about this service, please contact Infrastructure at: us...@infra.apache.org With regards, Apache Git Services
