KurtYoung commented on a change in pull request #8206: [FLINK-12248][table-planner-blink] Support e2e over window in blink batch URL: https://github.com/apache/flink/pull/8206#discussion_r276598619
########## File path: flink-table/flink-table-planner-blink/src/main/scala/org/apache/flink/table/codegen/BoundComparatorCodeGenerator.scala ########## @@ -0,0 +1,235 @@ +/* + * 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.codegen + +import org.apache.flink.table.`type`.{DateType, InternalType, InternalTypes, RowType, TimeType, TimestampType} +import org.apache.flink.table.api.TableConfig +import org.apache.flink.table.calcite.FlinkTypeFactory +import org.apache.flink.table.codegen.CodeGenUtils.{BASE_ROW, newName} +import org.apache.flink.table.codegen.Indenter.toISC +import org.apache.flink.table.generated.{GeneratedRecordComparator, RecordComparator} + +import org.apache.calcite.avatica.util.DateTimeUtils +import org.apache.calcite.rex.{RexInputRef, RexWindowBound} +import org.apache.calcite.sql.fun.SqlStdOperatorTable.{GREATER_THAN, GREATER_THAN_OR_EQUAL, MINUS} +import org.apache.calcite.tools.RelBuilder + +import java.math.BigDecimal + +/** + * A code generator for generating [[RecordComparator]] on the [[RexWindowBound]] based range + * over window. + * + * @param inType type of the input + * @param bound the bound value for the window, its type may be Long or BigDecimal. + * @param key key position describe which fields are keys in what order + * @param keyType type for the key field. + * @param keyOrder sort order for the key field. + * @param isLowerBound the RexWindowBound is lower or not. + */ +class RangeBoundComparatorCodeGenerator( + relBuilder: RelBuilder, + config: TableConfig, + inType: RowType, + bound: Any, + key: Int = -1, + keyType: InternalType = null, + keyOrder: Boolean = true, + isLowerBound: Boolean = true) { + + def generateBoundComparator(name: String): GeneratedRecordComparator = { + Review comment: blank line ---------------------------------------------------------------- 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: [email protected] With regards, Apache Git Services
