mirror of
https://github.com/apache/poi.git
synced 2026-02-27 20:40:08 +08:00
d121353f61
git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1884807 13f79535-47bb-0310-9956-ffa450edef68
61 lines
2.3 KiB
Java
61 lines
2.3 KiB
Java
|
|
/* ====================================================================
|
|
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.poifs.common;
|
|
|
|
/**
|
|
* <p>A repository for constants shared by POI classes.</p>
|
|
*/
|
|
public interface POIFSConstants
|
|
{
|
|
/** Most files use 512 bytes as their big block size */
|
|
int SMALLER_BIG_BLOCK_SIZE = 0x0200;
|
|
POIFSBigBlockSize SMALLER_BIG_BLOCK_SIZE_DETAILS =
|
|
new POIFSBigBlockSize(SMALLER_BIG_BLOCK_SIZE, (short)9);
|
|
/** Some use 4096 bytes */
|
|
int LARGER_BIG_BLOCK_SIZE = 0x1000;
|
|
POIFSBigBlockSize LARGER_BIG_BLOCK_SIZE_DETAILS =
|
|
new POIFSBigBlockSize(LARGER_BIG_BLOCK_SIZE, (short)12);
|
|
|
|
/** How big a block in the small block stream is. Fixed size */
|
|
int SMALL_BLOCK_SIZE = 0x0040;
|
|
|
|
/** How big a single property is */
|
|
int PROPERTY_SIZE = 0x0080;
|
|
|
|
/**
|
|
* The minimum size of a document before it's stored using
|
|
* Big Blocks (normal streams). Smaller documents go in the
|
|
* Mini Stream (SBAT / Small Blocks)
|
|
*/
|
|
int BIG_BLOCK_MINIMUM_DOCUMENT_SIZE = 0x1000;
|
|
|
|
/** The highest sector number you're allowed, 0xFFFFFFFA */
|
|
int LARGEST_REGULAR_SECTOR_NUMBER = -5;
|
|
|
|
/** Indicates the sector holds a DIFAT block (0xFFFFFFFC) */
|
|
int DIFAT_SECTOR_BLOCK = -4;
|
|
/** Indicates the sector holds a FAT block (0xFFFFFFFD) */
|
|
int FAT_SECTOR_BLOCK = -3;
|
|
/** Indicates the sector is the end of a chain (0xFFFFFFFE) */
|
|
int END_OF_CHAIN = -2;
|
|
/** Indicates the sector is not used (0xFFFFFFFF) */
|
|
int UNUSED_BLOCK = -1;
|
|
}
|