protected synchronized void remove(BookDescription description) throws DatabaseException {
try {
String[] isbnSeq = _authors.get(description.authors);
assert isbnSeq != null;
int i;
for (i = 0; i < isbnSeq.length; ++i) {
if (isbnSeq[i].equals(description.isbn)) {
break;
}
}
assert i < isbnSeq.length;
if (isbnSeq.length == 1) {
//
// If there are no further associated isbn numbers then remove
// the record.
//
_authors.fastRemove(description.authors);
} else {
//
// Remove the isbn number from the sequence and write
// back the new record.
//
String[] newIsbnSeq = new String[isbnSeq.length - 1];
System.arraycopy(isbnSeq, 0, newIsbnSeq, 0, i);
if (i < isbnSeq.length - 1) {
System.arraycopy(isbnSeq, i + 1, newIsbnSeq, i, isbnSeq.length - i - 1);
}
_authors.fastPut(description.authors, newIsbnSeq);
}
//
// This can throw EvictorDeactivatedException (which
// indicates an internal error). The exception is
// currently ignored.
//
_evictor.remove(createBookIdentity(description.isbn));
} catch (Freeze.DatabaseException ex) {
DatabaseException e = new DatabaseException();
e.message = ex.message;
throw e;
}
}
public synchronized BookPrx createBook(BookDescription description, Ice.Current current)
throws DatabaseException, BookExistsException {
BookPrx book = isbnToBook(description.isbn, current.adapter);
try {
book.ice_ping();
//
// The book already exists.
//
throw new BookExistsException();
} catch (Ice.ObjectNotExistException e) {
//
// Book doesn't exist, ignore the exception.
//
}
//
// Create a new book Servant.
//
BookI bookI = new BookI(this);
bookI.description = description;
Ice.Identity ident = createBookIdentity(description.isbn);
//
// Create a new Ice Object in the evictor, using the new
// identity and the new Servant.
//
// This can throw EvictorDeactivatedException (which indicates
// an internal error). The exception is currently ignored.
//
_evictor.add(bookI, ident);
try {
//
// Add the isbn number to the authors map.
//
String[] isbnSeq = _authors.get(description.authors);
int length = (isbnSeq == null) ? 0 : isbnSeq.length;
String[] newIsbnSeq = new String[length + 1];
if (isbnSeq != null) {
System.arraycopy(isbnSeq, 0, newIsbnSeq, 0, length);
}
newIsbnSeq[length] = description.isbn;
_authors.fastPut(description.authors, newIsbnSeq);
return book;
} catch (Freeze.DatabaseException ex) {
DatabaseException e = new DatabaseException();
e.message = ex.message;
throw e;
}
}
