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oracle.jdbc.xa.client
Class OracleXAResource
java.lang.Object
oracle.jdbc.xa.OracleXAResource
oracle.jdbc.xa.client.OracleXAResource
- All Implemented Interfaces:
- javax.transaction.xa.XAResource
- Direct Known Subclasses:
- OracleXAHeteroResource
-
public class OracleXAResource
- extends OracleXAResource
Implements javax.transaction.xa.XAResource.
Field Summary |
static boolean |
TRACE
|
Fields inherited from class oracle.jdbc.xa.OracleXAResource |
DEFAULT_XA_TIMEOUT, ORAISOLATIONMASK, ORATMREADONLY, ORATMREADWRITE, ORATMSERIALIZABLE, ORATRANSLOOSE, TMENDRSCAN, TMFAIL, TMJOIN, TMMIGRATE, TMNOFLAGS, TMNOMIGRATE, TMONEPHASE, TMRESUME, TMSTARTRSCAN, TMSUCCESS, TMSUSPEND, XA_OK |
Fields inherited from interface javax.transaction.xa.XAResource |
XA_RDONLY |
Method Summary |
void |
commit(javax.transaction.xa.Xid xid, boolean onePhase)
commit() -- Commit work done by global transaction specified by xid. |
void |
doTwoPhaseAction(int nsites, int action, java.lang.String[] dbnames, javax.transaction.xa.Xid[] xids)
|
void |
end(javax.transaction.xa.Xid xid, int flag)
end()-- End work performed on behalf of a transaction branch. |
void |
forget(javax.transaction.xa.Xid xid)
forget() -- Tell RM to forget about a heuristically completed txn branch |
int |
prepare(javax.transaction.xa.Xid xid)
prepare() -- Ask RM to prepare for a commit of the txn specified in xid. |
void |
rollback(javax.transaction.xa.Xid xid)
rollback() -- Ask RM to roll back work done on behalf of a txn branch. |
void |
start(javax.transaction.xa.Xid xid, int flag)
start() -- Starts work on behalf of a transaction branch. |
Methods inherited from class java.lang.Object |
equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
TRACE
public static final boolean TRACE
-
- See Also:
- Constant Field Values
OracleXAResource
public OracleXAResource()
OracleXAResource
public OracleXAResource(java.sql.Connection pm_conn,
OracleXAConnection xaconn)
throws javax.transaction.xa.XAException
-
- Throws:
javax.transaction.xa.XAException
start
public void start(javax.transaction.xa.Xid xid,
int flag)
throws javax.transaction.xa.XAException
- start() -- Starts work on behalf of a transaction branch. If TMJOIN is specified, the start is for joining an exisiting txn branch xid. If TMRESUME is specified, the start is to resume a suspended transaction branch specified in xid. Transaction suspend is done by calling the end method specifying the TMSUSPEND flag. If neither TMJOIN nor TMRESUME is specified and the transaction branch specified in xid already exists, the resource manager raises the duplicate transaction exception via XAER_DUPID. start() allows Isolation flags to be set, only when beginning a new transaction. XAER_INVAL exception is raised for error cases, such as (1) when JOIN/RESUME specified on start (2) invalid Isol flag is set. The valid Isolation levels allowed are: ORATMREADONLY ORATMREADWRITE ORATMSERIALIZABLE
-
- Specified by:
start
in interface javax.transaction.xa.XAResource
- Specified by:
start
in class OracleXAResource
-
- Parameters:
xid
- A global transaction identifier.
flag
- One of TMNOFLAGS, TMJOIN, TMNOMIGRATE or TMRESUME.
- Throws:
javax.transaction.xa.XAException
- An error has occurred. Possible exceptions are XA_RB, XAER_RMERR, XAER_RMFAIL, XAER_DUPID, XAER_OUTSIDE, XAER_NOTA, XAER_INVAL, or XAER_PROTO.
end
public void end(javax.transaction.xa.Xid xid,
int flag)
throws javax.transaction.xa.XAException
- end()-- End work performed on behalf of a transaction branch. The resource manager dissociates the XA resource from the transaction branch specified and let the transaction be completed. If TMSUSPEND is specified in flag, the txn branch is temporarily suspended in incomplete state. The txn context is in suspened state and must be resumed via start with TMRESUME specified. If TMFAIL is specified, the portion of work has failed. The RM may mark the transaction as rollback-only. If TMSUCCESS is specified, the portion of work has completed successfully.
-
- Specified by:
end
in interface javax.transaction.xa.XAResource
- Specified by:
end
in class OracleXAResource
-
- Parameters:
xid
- A global transaction identifier that is the same as what was used previously in the start method.
flag
- One of TMSUCCESS, TMFAIL, or TMSUSPEND.
- Throws:
javax.transaction.xa.XAException
- An error has occurred. Possible XAException values are XAER_RMERR, XAER_RMFAILED, XAER_NOTA, XAER_INVAL, XAER_PROTO, or XA_RB.
commit
public void commit(javax.transaction.xa.Xid xid,
boolean onePhase)
throws javax.transaction.xa.XAException
- commit() -- Commit work done by global transaction specified by xid.
-
- Specified by:
commit
in interface javax.transaction.xa.XAResource
- Specified by:
commit
in class OracleXAResource
-
- Parameters:
xid
- A global transaction identifier.
onePhase
- If true, the RM should use a 1-phase commit protocol to commit the work done on behalf of xid.
- Throws:
javax.transaction.xa.XAException
- (An error has occurred.) Possible XAExceptions are XA_HEURHAZ, XA_HEURCOM, XA_HEURRB, XA_HEURMIX, XAER_RMERR, XAER_RMFAIL, XAER_NOTA, XAER_INVAL, or XAER_PROTO. If the resource manager did not commit the txn and the paramether onePhase is set to true, the RM may raise one of the XA_RB exceptions. Upon return, the RM has rolled back the branch's work and has released all held resources.
prepare
public int prepare(javax.transaction.xa.Xid xid)
throws javax.transaction.xa.XAException
- prepare() -- Ask RM to prepare for a commit of the txn specified in xid.
-
- Specified by:
prepare
in interface javax.transaction.xa.XAResource
- Specified by:
prepare
in class OracleXAResource
-
- Parameters:
xid
- A global transaction identifier.
- Returns:
- A value indicating the resource manager's vote on the outcome of the txn. The possible values are: XA_RDONLY or XA_OK. If the RM wants to roll back the transaction, it should do so by raising an appropriate XAException in the prepare method.
- Throws:
javax.transaction.xa.XAException
- (An error has occurred.) Possible exception values are: XA_RB, XAER_RMERR, XAER_RMFAIL, XAER_NOTA, XAER_INVAL, or XAER_PROTO.
forget
public void forget(javax.transaction.xa.Xid xid)
throws javax.transaction.xa.XAException
- forget() -- Tell RM to forget about a heuristically completed txn branch
-
- Specified by:
forget
in interface javax.transaction.xa.XAResource
- Specified by:
forget
in class OracleXAResource
-
- Parameters:
xid
- A global transaction identifier.
- Throws:
javax.transaction.xa.XAException
- An error has occurred. Possible exception values are XAER_RMERR, XAER_RMFAIL, XAER_NOTA, XAER_INVAL, or XAER_PROTO.
rollback
public void rollback(javax.transaction.xa.Xid xid)
throws javax.transaction.xa.XAException
- rollback() -- Ask RM to roll back work done on behalf of a txn branch.
-
- Specified by:
rollback
in interface javax.transaction.xa.XAResource
- Specified by:
rollback
in class OracleXAResource
-
- Parameters:
xid
- A global transaction identifier.
- Throws:
javax.transaction.xa.XAException
- An error has occurred.
doTwoPhaseAction
public void doTwoPhaseAction(int nsites,
int action,
java.lang.String[] dbnames,
javax.transaction.xa.Xid[] xids)
throws javax.transaction.xa.XAException
-
- Throws:
javax.transaction.xa.XAException
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