org.apache.poi.poifs.storage
Interface BlockList

All Known Implementing Classes:

RawDataBlockList, SmallDocumentBlockList

public interface BlockList

Interface for lists of blocks that are mapped by block allocation tables

Author:

Marc Johnson (mjohnson at apache dot org

zap

void zap(int index)

remove the specified block from the list

Parameters:

index - the index of the specified block; if the index is out of range, that's ok

remove

ListManagedBlock remove(int index)
                        throws java.io.IOException

remove and return the specified block from the list

Parameters:

index - the index of the specified block

Returns:

the specified block

Throws:

java.io.IOException - if the index is out of range or has already been removed

fetchBlocks

ListManagedBlock[] fetchBlocks(int startBlock,
                               int headerPropertiesStartBlock)
                               throws java.io.IOException

get the blocks making up a particular stream in the list. The blocks are removed from the list.

Parameters:

startBlock - the index of the first block in the stream

headerPropertiesStartBlock - the index of the first header block in the stream

Returns:

the stream as an array of correctly ordered blocks

Throws:

java.io.IOException - if blocks are missing

setBAT

void setBAT(BlockAllocationTableReader bat)
            throws java.io.IOException

set the associated BlockAllocationTable

Parameters:

bat - the associated BlockAllocationTable

Throws:

java.io.IOException

blockCount

int blockCount()