org.apache.flink.table.plan.schema.BatchTableSourceTable.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,
* 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.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.sources.{BatchTableSource, TableSource, TableSourceUtil}
class BatchTableSourceTable[T](
tableSource: BatchTableSource[T],
statistic: FlinkStatistic = FlinkStatistic.UNKNOWN)
extends TableSourceTable(
tableSource,
statistic) {
TableSourceUtil.validateTableSource(tableSource)
override def getRowType(typeFactory: RelDataTypeFactory): RelDataType = {
TableSourceUtil.getRelDataType(
tableSource,
None,
streaming = false,
typeFactory.asInstanceOf[FlinkTypeFactory])
}
/**
* Creates a copy of this table, changing statistic.
*
* @param statistic A new FlinkStatistic.
* @return Copy of this table, substituting statistic.
*/
override def copy(statistic: FlinkStatistic) =
new BatchTableSourceTable(tableSource, statistic)
/**
* replace table source with the given one, and create a new table source table.
*
* @param tableSource tableSource to replace.
* @return new TableSourceTable
*/
override def replaceTableSource(tableSource: TableSource) =
new BatchTableSourceTable(tableSource.asInstanceOf[BatchTableSource[_]], statistic)
}