public TransactionOptions timeout(long timeout, TimeUnit timeoutUnit) {
        if (timeout == -1) {
            this.timeout = timeout;
            return this;
        }
        this.timeout = timeoutUnit.toMillis(timeout);
        return this;
    }
public TransactionOptions timeout ( long timeout , TimeUnit timeoutUnit ) { if ( timeout == - 1 ) { this . timeout = timeout ; return this ; } this . timeout = timeoutUnit . toMillis ( timeout ) ; return this ; }
If transaction hasn't been committed within <code>timeout</code> it will rollback automatically.
Set <code>-1</code> to disable.
<p>
Default is <code>5000 milliseconds</code>

@param timeout in milliseconds
@param timeoutUnit timeout time unit
@return self instance