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package jakarta.transaction;

/**
 * The TransactionManager API.
 *
 * @author Manfred Riem ([email protected])
 */
public interface TransactionManager {

    /**
     * Begin a new transaction.
     *
     * @throws NotSupportedException when nested transactions are not supported.
     * @throws SystemException when a serious error occurs.
     */
    void begin() throws NotSupportedException, SystemException;

    /**
     * Commit the transaction.
     *
     * @throws RollbackException when the transaction has been rolled back.
     * @throws HeuristicMixedException when the transaction was partially
     * committed.
     * @throws HeuristicRollbackException when the transaction was rolled back.
     * @throws SecurityException when the transaction is not allowed to commit.
     * @throws SystemException when a serious error occurs.
     */
    void commit() throws RollbackException, HeuristicMixedException,
            HeuristicRollbackException, SecurityException,
            IllegalStateException, SystemException;

    /**
     * {@return the status}
     * @throws SystemException when a serious error occurs.
     */
    int getStatus() throws SystemException;

    /**
     * {@return the transaction}
     * @throws SystemException when a serious error occurs.
     */
    Transaction getTransaction() throws SystemException;

    /**
     * Resume the transaction.
     *
     * @param transaction the transaction to resume.
     * @throws InvalidTransactionException when an invalid transaction was
     * passed in.
     * @throws IllegalStateException when the thread is already associated with
     * a transaction.
     * @throws SystemException when a serious error occurs.
     */
    void resume(Transaction transaction) throws InvalidTransactionException,
            IllegalStateException, SystemException;

    /**
     * Rollback the transaction.
     *
     * @throws IllegalStateException when not associated with a transaction.
     * @throws SecurityException when the transaction is not allowed to commit.
     * @throws SystemException when a serious error occurs.
     */
    void rollback() throws IllegalStateException, SecurityException,
            SystemException;

    /**
     * Set to rollback only.
     *
     * @throws IllegalStateException when not associated with a transaction.
     * @throws SystemException when a serious error occurs.
     */
    void setRollbackOnly() throws IllegalStateException, SystemException;

    /**
     * Set the transaction timeout.
     *
     * @param seconds the timeout in seconds.
     * @throws SystemException when a serious error occurs.
     */
    void setTransactionTimeout(int seconds) throws SystemException;

    /**
     * Suspend the transaction.
     *
     * @return the transaction, or null if not associated with a transaction.
     * @throws SystemException when a serious error occurs.
     */
    Transaction suspend() throws SystemException;
}




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