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TableConfig.scala
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TableConfig.scala
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/*
* 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.api
import org.apache.flink.configuration.{Configuration, GlobalConfiguration}
import _root_.java.util.TimeZone
import _root_.java.math.MathContext
/**
* A config to define the runtime behavior of the Table API.
*/
class TableConfig {
/**
* Defines the timezone for date/time/timestamp conversions.
*/
private var timeZone: TimeZone = TimeZone.getTimeZone("UTC")
/**
* Defines if all fields need to be checked for NULL first.
*/
private var nullCheck: Boolean = true
/**
* Defines the default context for decimal division calculation.
* We use Scala's default MathContext.DECIMAL128.
*/
private var decimalContext: MathContext = MathContext.DECIMAL128
/**
* Specifies a threshold where generated code will be split into sub-function calls. Java has a
* maximum method length of 64 KB. This setting allows for finer granularity if necessary.
*/
private var maxGeneratedCodeLength: Int = 64000 // just an estimate
/**
* Defines user-defined configuration
*/
private var conf = GlobalConfiguration.loadConfiguration()
/**
* Sets the timezone for date/time/timestamp conversions.
*/
def setTimeZone(timeZone: TimeZone): Unit = {
require(timeZone != null, "timeZone must not be null.")
this.timeZone = timeZone
}
/**
* Returns the timezone for date/time/timestamp conversions.
*/
def getTimeZone: TimeZone = timeZone
/**
* Returns the NULL check. If enabled, all fields need to be checked for NULL first.
*/
def getNullCheck: Boolean = nullCheck
/**
* Sets the NULL check. If enabled, all fields need to be checked for NULL first.
*/
def setNullCheck(nullCheck: Boolean): Unit = {
this.nullCheck = nullCheck
}
/**
* Returns the default context for decimal division calculation.
* [[_root_.java.math.MathContext#DECIMAL128]] by default.
*/
def getDecimalContext: MathContext = decimalContext
/**
* Sets the default context for decimal division calculation.
* [[_root_.java.math.MathContext#DECIMAL128]] by default.
*/
def setDecimalContext(mathContext: MathContext): Unit = {
this.decimalContext = mathContext
}
/**
* Returns the current threshold where generated code will be split into sub-function calls.
* Java has a maximum method length of 64 KB. This setting allows for finer granularity if
* necessary. Default is 64000.
*/
def getMaxGeneratedCodeLength: Int = maxGeneratedCodeLength
/**
* Returns the current threshold where generated code will be split into sub-function calls.
* Java has a maximum method length of 64 KB. This setting allows for finer granularity if
* necessary. Default is 64000.
*/
def setMaxGeneratedCodeLength(maxGeneratedCodeLength: Int): Unit = {
if (maxGeneratedCodeLength <= 0) {
throw new IllegalArgumentException("Length must be greater than 0.")
}
this.maxGeneratedCodeLength = maxGeneratedCodeLength
}
/**
* Returns user-defined configuration
*/
def getConf: Configuration = conf
/**
* Sets user-defined configuration
*/
def setConf(conf: Configuration): Unit = {
this.conf = GlobalConfiguration.loadConfiguration()
this.conf.addAll(conf)
}
}
object TableConfig {
def DEFAULT = new TableConfig()
}