| /* ==================================================================== |
| 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.poi.ss.formula; |
| |
| import java.util.HashMap; |
| import java.util.Iterator; |
| import java.util.Map; |
| |
| /** |
| * |
| * @author Josh Micich |
| */ |
| final class FormulaCellCache { |
| |
| static interface IEntryOperation { |
| void processEntry(FormulaCellCacheEntry entry); |
| } |
| |
| private final Map<Object, FormulaCellCacheEntry> _formulaEntriesByCell; |
| |
| public FormulaCellCache() { |
| // assumes the object returned by EvaluationCell.getIdentityKey() has a well behaved hashCode+equals |
| _formulaEntriesByCell = new HashMap<>(); |
| } |
| |
| public CellCacheEntry[] getCacheEntries() { |
| |
| FormulaCellCacheEntry[] result = new FormulaCellCacheEntry[_formulaEntriesByCell.size()]; |
| _formulaEntriesByCell.values().toArray(result); |
| return result; |
| } |
| |
| public void clear() { |
| _formulaEntriesByCell.clear(); |
| } |
| |
| /** |
| * @return <code>null</code> if not found |
| */ |
| public FormulaCellCacheEntry get(EvaluationCell cell) { |
| return _formulaEntriesByCell.get(cell.getIdentityKey()); |
| } |
| |
| public void put(EvaluationCell cell, FormulaCellCacheEntry entry) { |
| _formulaEntriesByCell.put(cell.getIdentityKey(), entry); |
| } |
| |
| public FormulaCellCacheEntry remove(EvaluationCell cell) { |
| return _formulaEntriesByCell.remove(cell.getIdentityKey()); |
| } |
| |
| public void applyOperation(IEntryOperation operation) { |
| Iterator<FormulaCellCacheEntry> i = _formulaEntriesByCell.values().iterator(); |
| while (i.hasNext()) { |
| operation.processEntry(i.next()); |
| } |
| } |
| } |