public Dbc cursor(DbTxn txnid, int flags) throws DbException;
The Db.cursor method creates a cursor.
If the operation is to be transaction-protected, the txnid parameter is a transaction handle returned from DbEnv.txn_begin; otherwise, null.
To transaction-protect cursor operations, cursors must be opened and closed within the context of a transaction, and the txnid parameter specifies the transaction context in which the cursor may be used.
The flags value must be set to 0 or by bitwise inclusively OR'ing together one or more of the following values:
The Db.cursor method throws an exception that encapsulates a non-zero error value on failure.
The Db.cursor method may fail and throw an exception encapsulating a non-zero error for the following conditions:
The Db.cursor method may fail and throw an exception for errors specified for other Berkeley DB and C library or system methods. If a catastrophic error has occurred, the Db.cursor method may fail and throw a DbRunRecoveryException, in which case all subsequent Berkeley DB calls will fail in the same way.
Copyright Sleepycat Software