costransactions_transactionfactory(3erl) [linux man page]
CosTransactions_TransactionFactory(3erl) Erlang Module Definition CosTransactions_TransactionFactory(3erl)NAME
CosTransactions_TransactionFactory - This module implements the OMG CosTransactions::TransactionFactory interface.
DESCRIPTION
To get access to the record definitions for the structures use:
-include_lib("cosTransactions/include/CosTransactions.hrl").
EXPORTS
create(TransactionFactory, Timeout) -> Control
Types TransactionFactory = #objref
Timeout = integer()
Control = #objref
This operation creates a new top-level transaction.
The Timeout argument can be:
* 0 - no timeout.
* N (integer() > 0) - the transaction will be subject to being rolled back if it does not complete before N seconds have elapsed.
Ericsson AB cosTransactions 1.2.10 CosTransactions_TransactionFactory(3erl)
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CosTransactions_Resource(3erl) Erlang Module Definition CosTransactions_Resource(3erl)NAME
CosTransactions_Resource - This module implements the OMG CosTransactions::Resource interface.
DESCRIPTION
To get access to the record definitions for the structures use:
-include_lib("cosTransactions/include/CosTransactions.hrl").
EXPORTS
commit(Resource) -> Return
Types Resource = #objref
Return = ok | {'EXCEPTION', E}
E = #'CosTransactions_NotPrepared'{} | #'CosTransactions_HeuristicRollback'{} | #'CosTransactions_HeuristicMixed'{} | #'Cos-
Transactions_HeuristicHazard'{}
This operation instructs the Resource to commit all changes made as a part of the transaction.
The Resource can raise:
* Heuristic Exception - if a Heuristic decision is made which differ from the true outcome of the transaction. The Resource must
remember the Heuristic outcome until the forget operation is performed.
commit_one_phase(Resource) -> Return
Types Resource = #objref
Return = ok | {'EXCEPTION', E}
E = #'CosTransactions_HeuristicHazard'{} | #'CosTransactions_TransactionRolledBack'{}
If possible, the Resource should commit all changes made as part of the transaction, else it should raise the TRANSACTION_ROLLEDBACK
exception. This operation can only be used if the Resource is the only child of its parent.
forget(Resource) -> Return
Types Resource = #objref
Return = ok
This operation informs the Resource that it is safe to forget any Heuristic decisions and the knowledge of the transaction.
prepare(Resource) -> Return
Types Resource = #objref
Return = Vote | {'EXCEPTION', E}
Vote = 'VoteReadOnly' | 'VoteCommit' | 'VoteRollback'
E = #'CosTransactions_HeuristicMixed'{} | #'CosTransactions_HeuristicHazard'{}
This operation is invoked on the Resource to begin the two-phase commit protocol.
The Resource can reply:
* 'VoteReadOnly' - if no persistent data has been modified by the transaction. The Resource can forget all knowledge of the trans-
action.
* 'VoteCommit' - if the Resource has been prepared and is able to write all the data needed to commit the transaction to stable
storage.
* 'VoteRollback' - under any circumstances but must do so if none of the alternatives above are applicable.
* Heuristic Exception - if a Heuristic decision is made which differ from the true outcome of the transaction. The Resource must
remember the Heuristic outcome until the forget operation is performed.
rollback(Resource) -> Return
Types Resource = #objref
Return = ok | {'EXCEPTION', E}
E = #'CosTransactions_HeuristicCommit'{} | #'CosTransactions_HeuristicMixed'{} | #'CosTransactions_HeuristicHazard'{}
This operation instructs the Resource to rollback all changes made as a part of the transaction.
The Resource can raise:
* Heuristic Exception - if a Heuristic decision is made which differ from the true outcome of the transaction. The Resource must
remember the Heuristic outcome until the forget operation is performed.
Ericsson AB cosTransactions 1.2.10 CosTransactions_Resource(3erl)