@Override
public synchronized void transfer(Integer from, Integer to, int amount) {
accounts.get(from).transfer(-amount);
accounts.get(to).transfer(amount);
excerpt.startExcerpt(12);
excerpt.writeInt(from);
excerpt.writeInt(to);
excerpt.writeInt(amount);
excerpt.finish();
}
@Override
public Page read(long key, @Nullable PageReadTrx pageReadTrx) throws SirixIOException {
try {
// Read page from excerpt.
final boolean opened = mExcerpt.index(key);
assert opened : "Index couldn't be opened!";
final int dataLength = mExcerpt.readInt();
final byte[] page = new byte[dataLength];
mExcerpt.read(page);
mExcerpt.finish();
// Perform byte operations.
final DataInputStream input =
new DataInputStream(mByteHandler.deserialize(new ByteArrayInputStream(page)));
// Return reader required to instantiate and deserialize page.
return PagePersistenter.deserializePage(input, pageReadTrx);
} catch (final IOException e) {
throw new SirixIOException(e);
}
}
