public DbPreplist txn_recover(int count, int flags) throws DbException;
The DbEnv.txn_recover interface returns a list of prepared but not yet resolved transactions. The DbEnv.txn_recover method should only be called after the environment has been recovered. Because database environment state must be preserved between recovery and the application calling DbEnv.txn_recover, applications must either call DbEnv.txn_recover using the same environment handle used when recovery is done, or the database environment must not be configured using the Db.DB_PRIVATE flag.
The DbEnv.txn_recover method returns a list of transactions that must be resolved by the application (committed, aborted or discarded). The return value is an array of objects of type DbPreplist; the following DbPreplist fields will be filled in:
The application must call DbTxn.abort, DbTxn.commit or DbTxn.discard on each returned DbTxn handle before starting any new operations.
The count parameter specifies the number of maximum size of the array that should be returned.
The flags value must be set to one of the following values:
The DbEnv.txn_recover method throws an exception that encapsulates a non-zero error value on failure.
The DbEnv.txn_recover 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 DbEnv.txn_recover method may fail and throw a DbRunRecoveryException, in which case all subsequent Berkeley DB calls will fail in the same way.
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