org.apache.flink.table.plan.schema.TableSinkTable.scala Maven / Gradle / Ivy
/*
* 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,
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*/
package org.apache.flink.table.plan.schema
import org.apache.calcite.rel.`type`.{RelDataType, RelDataTypeFactory}
import org.apache.flink.table.calcite.FlinkTypeFactory
import org.apache.flink.table.plan.stats.FlinkStatistic
import org.apache.flink.table.sinks.TableSink
/** Class which implements the logic to convert a [[TableSink]] to Calcite Table */
class TableSinkTable[T](
val tableSink: TableSink[T],
val statistic: FlinkStatistic = FlinkStatistic.UNKNOWN)
extends FlinkTable {
override def getRowType(typeFactory: RelDataTypeFactory): RelDataType = {
val flinkTypeFactory = typeFactory.asInstanceOf[FlinkTypeFactory]
flinkTypeFactory.buildRelDataType(
tableSink.getFieldNames,
tableSink.getFieldTypes.map(_.toInternalType))
}
/**
* Returns statistics of current table
*
* @return statistics of current table
*/
override def getStatistic: FlinkStatistic = statistic
override def copy(statistic: FlinkStatistic): FlinkTable =
new TableSinkTable[T](tableSink, statistic)
}