/* ====================================================================
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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.SS.Formula
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{
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using System;
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using System.Collections;
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public interface IEntryOperation
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{
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void ProcessEntry(FormulaCellCacheEntry entry);
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}
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/**
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*
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* @author Josh Micich
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*/
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public class FormulaCellCache
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{
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private Hashtable _formulaEntriesByCell;
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public FormulaCellCache()
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{
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// assumes HSSFCell does not override HashCode or Equals, otherwise we need IdentityHashMap
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_formulaEntriesByCell = new Hashtable();
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}
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public CellCacheEntry[] GetCacheEntries()
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{
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FormulaCellCacheEntry[] result = new FormulaCellCacheEntry[_formulaEntriesByCell.Count];
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_formulaEntriesByCell.Values.CopyTo(result,0);
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return result;
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}
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public void Clear()
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{
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_formulaEntriesByCell.Clear();
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}
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/**
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* @return <c>null</c> if not found
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*/
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public FormulaCellCacheEntry Get(IEvaluationCell cell)
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{
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return (FormulaCellCacheEntry)_formulaEntriesByCell[cell.IdentityKey];
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}
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public void Put(IEvaluationCell cell, FormulaCellCacheEntry entry)
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{
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_formulaEntriesByCell[cell.IdentityKey] = entry;
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}
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public FormulaCellCacheEntry Remove(IEvaluationCell cell)
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{
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FormulaCellCacheEntry tmp = (FormulaCellCacheEntry)_formulaEntriesByCell[cell.IdentityKey];
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_formulaEntriesByCell.Remove(cell);
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return tmp;
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}
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public void ApplyOperation(IEntryOperation operation)
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{
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IEnumerator i = _formulaEntriesByCell.Values.GetEnumerator();
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while (i.MoveNext())
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{
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operation.ProcessEntry((FormulaCellCacheEntry)i.Current);
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}
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}
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}
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}
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