/* package */
DbSequence openSequence(final Db db, final DbTxn txn, final DatabaseEntry key)
throws DatabaseException {
final DbSequence seq = createSequence(db);
// The DB_THREAD flag is inherited from the database
boolean threaded = ((db.get_open_flags() & DbConstants.DB_THREAD) != 0);
int openFlags = 0;
openFlags |= allowCreate ? DbConstants.DB_CREATE : 0;
openFlags |= exclusiveCreate ? DbConstants.DB_EXCL : 0;
openFlags |= threaded ? DbConstants.DB_THREAD : 0;
if (db.get_transactional() && txn == null) openFlags |= DbConstants.DB_AUTO_COMMIT;
configureSequence(seq, DEFAULT);
boolean succeeded = false;
try {
seq.open(txn, key, openFlags);
succeeded = true;
return seq;
} finally {
if (!succeeded)
try {
seq.close(0);
} catch (Throwable t) {
// Ignore it -- an exception is already in flight.
}
}
}
/* package */
SecondaryConfig(final Db db) throws DatabaseException {
super(db);
// XXX: There is no way to find out what flags were passed to associate.
allowPopulate = false;
immutableSecondaryKey = false;
keyCreator = db.get_seckey_create();
multiKeyCreator = db.get_secmultikey_create();
}
/* package */
Db openSecondaryDatabase(
final DbEnv dbenv,
final DbTxn txn,
final String fileName,
final String databaseName,
final Db primary)
throws DatabaseException, java.io.FileNotFoundException {
int associateFlags = 0;
int foreignFlags = 0;
associateFlags |= allowPopulate ? DbConstants.DB_CREATE : 0;
if (getTransactional() && txn == null) associateFlags |= DbConstants.DB_AUTO_COMMIT;
if (immutableSecondaryKey) associateFlags |= DbConstants.DB_IMMUTABLE_KEY;
final Db db = super.openDatabase(dbenv, txn, fileName, databaseName);
boolean succeeded = false;
try {
/*
* The multi-key creator must be set before the call to associate
* so that we can work out whether the C API callback should be
* set or not.
*/
db.set_secmultikey_create(multiKeyCreator);
primary.associate(txn, db, keyCreator, associateFlags);
if (foreign != null) {
db.set_foreignmultikey_nullifier(multiKeyNullifier);
foreign.associate_foreign(db, keyNullifier, foreignFlags | fkDelAction.getId());
}
succeeded = true;
return db;
} finally {
if (!succeeded)
try {
db.close(0);
} catch (Throwable t) {
// Ignore it -- there is already an exception in flight.
}
}
}
