/**
* Preconditions: 1. xid is known to the RM or it's in prepared state
*
* <p>Implementation deficiency preconditions: 1. xid must be associated with this connection if
* it's not in prepared state.
*
* <p>Postconditions: 1. Transaction is rolled back and disassociated from connection
*/
public void rollback(Xid xid) throws XAException {
if (logger.logDebug()) debug("rolling back xid = " + xid);
// We don't explicitly check precondition 1.
try {
if (currentXid != null && xid.equals(currentXid)) {
state = STATE_IDLE;
currentXid = null;
conn.rollback();
conn.setAutoCommit(localAutoCommitMode);
} else {
String s = RecoveredXid.xidToString(xid);
conn.setAutoCommit(true);
Statement stmt = conn.createStatement();
try {
stmt.executeUpdate("ROLLBACK PREPARED '" + s + "'");
} finally {
stmt.close();
}
}
} catch (SQLException ex) {
throw new PGXAException(
GT.tr("Error rolling back prepared transaction"), ex, XAException.XAER_RMERR);
}
}
