/* ====================================================================
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Licensed to the Apache Software Foundation (ASF) Under one or more
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contributor license agreements. See the NOTICE file distributed with
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this work for Additional information regarding copyright ownership.
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The ASF licenses this file to You Under the Apache License, Version 2.0
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(the "License"); you may not use this file except in compliance with
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the License. You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed Under the License is distributed on an "AS Is" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations Under the License.
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==================================================================== */
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namespace HH.WMS.Utils.NPOI.HSSF.UserModel
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{
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using System;
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using System.Text;
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using System.Threading;
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/**
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* This class makes an <c>EvaluationCycleDetector</c> instance available to
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* each thRead via a <c>ThReadLocal</c> in order to avoid Adding a parameter
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* to a few protected methods within <c>HSSFFormulaEvaluator</c>.
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*
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* @author Josh Micich
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*/
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class EvaluationCycleDetectorManager
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{
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[ThreadStatic]
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static EvaluationCycleDetector ecd = new EvaluationCycleDetector();
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/**
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* @return
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*/
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public static EvaluationCycleDetector GetTracker()
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{
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return ecd;
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}
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private EvaluationCycleDetectorManager()
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{
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// no instances of this class
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}
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}
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}
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