org.openorb.ots.Impl
Class SubTransCoordinator
public
class
SubTransCoordinator
extends Coordinator
This class is a coordinator implementation for an sub transaction.
Author: Jerome Daniel
public SubTransCoordinator(
Manager manager, int time_out,
XID xid,
TransIdentity[] parents, POA poa, Logger logger)
Constructor
public
Control create_subtransaction()
A new subtransaction is created whose parent is the transaction associated with the
target object. The Inactive exception is raised if the target transaction has already been
prepared. An implementation of the Transaction Service is not required to support
nested transactions. If nested transactions are not supported, the exception
SubtransactionsUnavailable is raised.
The create_subtransaction operation returns a Control object, which enables the
subtransaction to be terminated and allows recoverable objects to participate in the
subtransaction. An implementation of the Transaction Service may restrict the ability
for the Control object to be transmitted to or used in other execution environments.
public
Status get_parent_status()
If the transaction associated with the target object is a top-level transaction, then this
operation is equivalent to the get_status operation. Otherwise, this operation returns the
status of the parent of the transaction associated with the target object.
public
Status get_top_level_status()
This operation returns the status of the top-level ancestor of the transaction associated
with the target object. If the transaction is a top-level transaction, then this operation is
equivalent to the get_status operation.
public String get_transaction_name()
This operation returns a printable string describing the transaction associated with the
target object. The returned string is intended to support debugging.
public int hash_top_level_tran()
This operation returns the hash code for the top-level ancestor of the transaction
associated with the target object. This operation is equivalent to the hash_transaction
operation when the transaction associated with the target object is a top-level
transaction.
This operation returns true if, and only if, the transaction associated with the target
object is an ancestor of the transaction associated with the parameter object.
This operation returns true if, and only if, the transaction associated with the target
object is related to the transaction associated with the parameter object.
public boolean is_top_level_transaction()
This operation returns true if, and only if, the transaction associated with the target
object is a top-level transaction. A transaction is a top-level transaction if it has no
parent.
This operation registers the specified resource as a participant in the transaction
associated with the target object. When the transaction is terminated, the resource will
receive requests to commit or rollback the updates performed as part of the transaction.
These requests are described in the description of the Resource interface. The Inactive
exception is raised if the transaction has already been prepared. The standard exception
TRANSACTION_ROLLEDBACK may be raised if the transaction has been marked
rollback only.
If the resource is a subtransaction aware resource (it supports the
SubtransactionAwareResource interface) and the transaction associated with the target
object is a subtransaction, then this operation registers the specified resource with the
subtransaction and indirectly with the top-level transaction when the subtransaction?s
ancestors have completed. Otherwise, the resource is registered as a participant in the
current transaction. If the current transaction is a subtransaction, the resource will not
receive prepare or commit requests until the top-level ancestor terminates.
This operation returns a RecoveryCoordinator that can be used by this resource during
recovery.
This operation registers the specified subtransaction aware resource such that it will be
notified when the subtransaction has committed or rolled back. These requests are
described in the description of the SubtransactionAwareResource interface.
Note that this operation registers the specified resource only with the subtransaction.
This operation cannot be used to register the resource as a participant in the
transaction.
The NotSubtransaction exception is raised if the current transaction is not a
subtransaction. The Inactive exception is raised if the subtransaction (or any ancestor)
has already been terminated. The standard exception TRANSACTION_ROLLEDBACK
may be raised if the subtransaction (or any ancestor) has been marked rollback only.
This operation returns all registered resources.