File	Doc	Category	Size	Date	Package
LocalRawDataBlockList.java	API Doc	Apache Poi 3.0.1	5302	Mon Jan 01 12:39:44 GMT 2007	org.apache.poi.poifs.storage

LocalRawDataBlockList

• java.lang.Object
  • org.apache.poi.poifs.storage.BlockListImpl
    • org.apache.poi.poifs.storage.RawDataBlockList

Fields Summary
private List	_list
private RawDataBlock[]	_array

Constructors Summary
public LocalRawDataBlockList() Constructor LocalRawDataBlockList exception IOException super(new ByteArrayInputStream(new byte[ 0 ])); _list = new ArrayList(); _array = null;

Methods Summary
public void	add(org.apache.poi.poifs.storage.RawDataBlock block) add a new block param block new block to add _list.add(block);
public void	createNewBATBlock(int start_index) create a BAT block and add it to the list param start_index initial index for the block list exception IOException byte[] data = new byte[ 512 ]; int offset = 0; for (int j = 0; j < 128; j++) { int index = start_index + j; if (index % 256 == 0) { LittleEndian.putInt(data, offset, -1); } else if (index % 256 == 255) { LittleEndian.putInt(data, offset, -2); } else { LittleEndian.putInt(data, offset, index + 1); } offset += LittleEndianConsts.INT_SIZE; } add(new RawDataBlock(new ByteArrayInputStream(data)));
public void	createNewXBATBlock(int start, int end, int chain) create and a new XBAT block param start index of first BAT block param end index of last BAT block param chain index of next XBAT block exception IOException byte[] data = new byte[ 512 ]; int offset = 0; for (int k = start; k <= end; k++) { LittleEndian.putInt(data, offset, k); offset += LittleEndianConsts.INT_SIZE; } while (offset != 508) { LittleEndian.putInt(data, offset, -1); offset += LittleEndianConsts.INT_SIZE; } LittleEndian.putInt(data, offset, chain); add(new RawDataBlock(new ByteArrayInputStream(data)));
private void	ensureArrayExists() if (_array == null) { _array = ( RawDataBlock [] ) _list.toArray(new RawDataBlock[ 0 ]); }
public void	fill(int count) fill the list with dummy blocks param count of blocks exception IOException int limit = 128 * count; for (int j = _list.size(); j < limit; j++) { add(new RawDataBlock(new ByteArrayInputStream(new byte[ 0 ]))); }
public org.apache.poi.poifs.storage.ListManagedBlock	remove(int index) override of remove method param index of block to be removed return desired block exception IOException ensureArrayExists(); RawDataBlock rvalue = null; try { rvalue = _array[ index ]; if (rvalue == null) { throw new IOException("index " + index + " is null"); } _array[ index ] = null; } catch (ArrayIndexOutOfBoundsException ignored) { throw new IOException("Cannot remove block[ " + index + " ]; out of range"); } return rvalue;
public void	zap(int index) remove the specified block from the list param index the index of the specified block; if the index is out of range, that's ok ensureArrayExists(); if ((index >= 0) && (index < _array.length)) { _array[ index ] = null; }