| /* ==================================================================== |
| 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.hslf.record; |
| import java.util.Map; |
| |
| /** |
| * A special (and dangerous) kind of Record Atom that cares about where |
| * it lives on the disk, or who has other Atoms that care about where |
| * this is on the disk. |
| */ |
| |
| public abstract class PositionDependentRecordAtom extends RecordAtom implements PositionDependentRecord |
| { |
| /** Our location on the disk, as of the last write out */ |
| private int myLastOnDiskOffset; |
| |
| /** Fetch our location on the disk, as of the last write out */ |
| public int getLastOnDiskOffset() { return myLastOnDiskOffset; } |
| |
| /** |
| * Update the Record's idea of where on disk it lives, after a write out. |
| * Use with care... |
| */ |
| public void setLastOnDiskOffset(int offset) { |
| myLastOnDiskOffset = offset; |
| } |
| |
| /** |
| * Offer the record the list of records that have changed their |
| * location as part of the writeout. |
| * Allows records to update their internal pointers to other records |
| * locations |
| */ |
| public abstract void updateOtherRecordReferences(Map<Integer,Integer> oldToNewReferencesLookup); |
| } |