org.apache.poi.poifs.storage
Class HeaderBlockWriter
java.lang.Object
|
+--org.apache.poi.poifs.storage.BigBlock
|
+--org.apache.poi.poifs.storage.HeaderBlockWriter
- All Implemented Interfaces:
- BlockWritable, HeaderBlockConstants
- public class HeaderBlockWriter
- extends org.apache.poi.poifs.storage.BigBlock
- implements HeaderBlockConstants
The block containing the archive header
- Author:
- Marc Johnson (mjohnson at apache dot org)
Constructor Summary |
HeaderBlockWriter()
Create a single instance initialized with default values |
Method Summary |
protected void |
doWriteData(java.io.OutputStream stream,
byte[] data)
Default implementation of write for extending classes that
contain their data in a simple array of bytes. |
BATBlock[] |
setBATBlocks(int blockCount,
int startBlock)
Set BAT block parameters. |
void |
setPropertyStart(int startBlock)
Set start of Property Table |
void |
setSBATStart(int startBlock)
Set start of small block allocation table |
void |
writeBlocks(java.io.OutputStream stream)
Write the storage to an OutputStream |
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
HeaderBlockWriter
public HeaderBlockWriter()
- Create a single instance initialized with default values
setBATBlocks
public BATBlock[] setBATBlocks(int blockCount,
int startBlock)
- Set BAT block parameters. Assumes that all BAT blocks are
contiguous. Will construct XBAT blocks if necessary and return
the array of newly constructed XBAT blocks.
- Parameters:
blockCount
- count of BAT blocksstartBlock
- index of first BAT block- Returns:
- array of XBAT blocks; may be zero length, will not be
null
setPropertyStart
public void setPropertyStart(int startBlock)
- Set start of Property Table
- Parameters:
startBlock
- the index of the first block of the Property
Table
setSBATStart
public void setSBATStart(int startBlock)
- Set start of small block allocation table
- Parameters:
startBlock
- the index of the first big block of the small
block allocation table
doWriteData
protected void doWriteData(java.io.OutputStream stream,
byte[] data)
throws java.io.IOException
- Default implementation of write for extending classes that
contain their data in a simple array of bytes.
- Parameters:
stream
- the OutputStream to which the data should be
written.data
- the byte array of to be written.- Throws:
java.io.IOException
- on problems writing to the specified
stream.
writeBlocks
public void writeBlocks(java.io.OutputStream stream)
throws java.io.IOException
- Write the storage to an OutputStream
- Specified by:
writeBlocks
in interface BlockWritable
- Parameters:
stream
- the OutputStream to which the stored data should
be written- Throws:
java.io.IOException
- on problems writing to the specified
stream
Copyright © 2001-2002 JAKARTA POI project. All Rights Reserved.