Blockpublic class Block extends Object
| Fields Summary |
|---|
| protected com.sleepycat.db.DatabaseEntry | key | | protected com.sleepycat.db.DatabaseEntry | data |
| Constructors Summary |
|---|
protected Block(File file)
byte[] fileKey = file.getKey();
key = new DatabaseEntry(new byte[fileKey.length + 8]);
key.setUserBuffer(fileKey.length + 8, true);
data = new DatabaseEntry(new byte[DbIndexOutput.BLOCK_LEN]);
data.setUserBuffer(data.getSize(), true);
System.arraycopy(fileKey, 0, key.getData(), 0, fileKey.length);
seek(0L);
|
| Methods Summary |
|---|
| protected void | get(DbDirectory directory)
try {
directory.blocks.get(directory.txn, key, data, directory.flags);
} catch (DatabaseException e) {
throw new IOException(e.getMessage());
}
| | protected byte[] | getData()
return data.getData();
| | protected byte[] | getKey()
return key.getData();
| | protected void | put(DbDirectory directory)
try {
directory.blocks.put(directory.txn, key, data, 0);
} catch (DatabaseException e) {
throw new IOException(e.getMessage());
}
| | protected void | seek(long position)
byte[] data = key.getData();
int index = data.length - 8;
position >>>= DbIndexOutput.BLOCK_SHIFT;
data[index + 0] = (byte) (0xff & (position >>> 56));
data[index + 1] = (byte) (0xff & (position >>> 48));
data[index + 2] = (byte) (0xff & (position >>> 40));
data[index + 3] = (byte) (0xff & (position >>> 32));
data[index + 4] = (byte) (0xff & (position >>> 24));
data[index + 5] = (byte) (0xff & (position >>> 16));
data[index + 6] = (byte) (0xff & (position >>> 8));
data[index + 7] = (byte) (0xff & (position >>> 0));
|
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