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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.codegen.calls
import org.apache.flink.table.codegen.calls.ScalarOperators.generateNot
import org.apache.flink.table.codegen.{GeneratedExpression, CodeGenerator}
/**
* Inverts the boolean value of a CallGenerator result.
*/
class NotCallGenerator(callGenerator: CallGenerator) extends CallGenerator {
override def generate(
codeGenerator: CodeGenerator,
operands: Seq[GeneratedExpression])
: GeneratedExpression = {
val expr = callGenerator.generate(codeGenerator, operands)
generateNot(codeGenerator.nullCheck, expr)
}
}