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java.lang.Object | +--org.apache.poi.poifs.storage.BigBlock | +--org.apache.poi.poifs.storage.DocumentBlock
A block of document data.
Constructor Summary | |
DocumentBlock(java.io.InputStream stream)
Create a single instance initialized with data. |
|
DocumentBlock(RawDataBlock block)
create a document block from a raw data block |
Method Summary | |
static DocumentBlock[] |
convert(byte[] array,
int size)
convert a single long array into an array of DocumentBlock instances |
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. |
static byte |
getFillByte()
|
boolean |
partiallyRead()
Was this a partially read block? |
static void |
read(DocumentBlock[] blocks,
byte[] buffer,
int offset)
read data from an array of DocumentBlocks |
int |
size()
Get the number of bytes read for this block |
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 |
Constructor Detail |
public DocumentBlock(RawDataBlock block) throws java.io.IOException
block
- the raw data blockjava.io.IOException
- public DocumentBlock(java.io.InputStream stream) throws java.io.IOException
stream
- the InputStream delivering the data.java.io.IOException
- Method Detail |
public int size()
public boolean partiallyRead()
public static byte getFillByte()
public static DocumentBlock[] convert(byte[] array, int size)
array
- the byte array to be convertedsize
- the intended size of the array (which may be smaller)public static void read(DocumentBlock[] blocks, byte[] buffer, int offset)
blocks
- the blocks to read frombuffer
- the buffer to write the data intooffset
- the offset into the array of blocks to read fromprotected void doWriteData(java.io.OutputStream stream, byte[] data) throws java.io.IOException
stream
- the OutputStream to which the data should be
written.data
- the byte array of to be written.java.io.IOException
- on problems writing to the specified
stream.public void writeBlocks(java.io.OutputStream stream) throws java.io.IOException
writeBlocks
in interface BlockWritable
stream
- the OutputStream to which the stored data should
be writtenjava.io.IOException
- on problems writing to the specified
stream
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