/**
* Alipay.com Inc.
* Copyright (c) 2004-2012 All Rights Reserved.
*/
package com.alipay.zdal.datasource.transaction;
import javax.transaction.InvalidTransactionException;
/**
* The TransactionManager interface defines the methods that allow an
* application server to manage transactions on behalf of the applications.
* <p>
* User applications should not use this interface directly, but use
* {@link UserTransaction} insted if they need to do their own transaction
* management.
* <p>
* Internally, the transaction manager associates transactions with threads,
* and the methods here operate on the transaction associated with the
* calling thread.
*
* @version $Revision: 37390 $
*/
public interface TransactionManager {
/**
* Starts a new transaction, and associate it with the calling thread.
*
* @throws NotSupportedException If the calling thread is already
* associated with a transaction, and nested transactions are
* not supported.
* @throws SystemException If the transaction service fails in an
* unexpected way.
*/
public void begin() throws NotSupportedException, SystemException;
/**
* Commit the transaction associated with the calling thread.
*
* @throws RollbackException If the transaction was marked for rollback
* only, the transaction is rolled back and this exception is
* thrown.
* @throws IllegalStateException If the calling thread is not associated
* with a transaction.
* @throws SystemException If the transaction service fails in an
* unexpected way.
* @throws HeuristicMixedException If a heuristic decision was made and
* some some parts of the transaction have been committed while
* other parts have been rolled back.
* @throws HeuristicRollbackException If a heuristic decision to roll
* back the transaction was made.
* @throws SecurityException If the caller is not allowed to commit this
* transaction.
*/
public void commit() throws RollbackException, HeuristicMixedException,
HeuristicRollbackException, SecurityException, IllegalStateException,
SystemException;
/**
* Rolls back the transaction associated with the calling thread.
*
* @throws IllegalStateException If the transaction is in a state
* where it cannot be rolled back. This could be because the
* calling thread is not associated with a transaction, or
* because it is in the
* {@link Status#STATUS_PREPARED prepared state}.
* @throws SecurityException If the caller is not allowed to roll back
* this transaction.
* @throws SystemException If the transaction service fails in an
* unexpected way.
*/
public void rollback() throws IllegalStateException, SecurityException, SystemException;
/**
* Mark the transaction associated with the calling thread for rollback
* only.
*
* @throws IllegalStateException If the transaction is in a state
* where it cannot be rolled back. This could be because the
* calling thread is not associated with a transaction, or
* because it is in the
* {@link Status#STATUS_PREPARED prepared state}.
* @throws SystemException If the transaction service fails in an
* unexpected way.
*/
public void setRollbackOnly() throws IllegalStateException, SystemException;
/**
* Get the status of the transaction associated with the calling thread.
*
* @return The status of the transaction. This is one of the
* {@link Status} constants. If no transaction is associated
* with the calling thread,
* {@link Status#STATUS_NO_TRANSACTION} is returned.
*
* @throws SystemException If the transaction service fails in an
* unexpected way.
*/
public int getStatus() throws SystemException;
/**
* Get the transaction associated with the calling thread.
*
* @return The transaction associated with the calling thread, or
* <code>null</code> if the calling thread is not associated
* with a transaction.
*
* @throws SystemException If the transaction service fails in an
* unexpected way.
*/
public Transaction getTransaction() throws SystemException;
/**
* Change the transaction timeout for transactions started by the calling
* thread with the {@link #begin()} method.
*
* @param seconds The new timeout value, in seconds. If this parameter
* is <code>0</code>, the timeout value is reset to the default
* value.
*
* @throws SystemException If the transaction service fails in an
* unexpected way.
*/
public void setTransactionTimeout(int seconds) throws SystemException;
/**
* Suspend the association the calling thread has to a transaction,
* and return the suspended transaction.
* When returning from this method, the calling thread is no longer
* associated with a transaction.
*
* @return The transaction that the calling thread was associated with,
* or <code>null</code> if the calling thread was not associated
* with a transaction.
*
* @throws SystemException If the transaction service fails in an
* unexpected way.
*/
public Transaction suspend() throws SystemException;
/**
* Resume the association of the calling thread with the given
* transaction.
*
* @param tobj The transaction to be associated with the calling thread.
*
* @throws InvalidTransactionException If the argument does not represent
* a valid transaction.
* @throws IllegalStateException If the calling thread is already
* associated with a transaction.
* @throws SystemException If the transaction service fails in an
* unexpected way.
*/
public void resume(Transaction tobj) throws InvalidTransactionException, IllegalStateException,
SystemException;
}