We help IT Professionals succeed at work.
Get Started
Troubleshooting Question

Writing a Huge List of Custom Objects using ObjectOutputStream in Java

ronan_40060 asked
Last Modified: 2021-01-05
I'm writing a huge list of Custom Objects using ObjectOutputStream in Java
and the code snippet is as below and my question is on the usage of ObjectOutputStream  
Should I use BufferedOutputStream instead of ObjectOutPutStream to increase the performance of write operation in a loop ? Or is there a way to write to ObjectOutputStream using chunk of data and how can I call flush() inside the for loop ?
Thanks for your time  

protected void writeTransferObject(List<? extends DataTransfer> dataTransferList,
        HttpServletResponse response)
        long startTime, elapsedTime;
        startTime = System.nanoTime();
        try (ObjectOutputStream oos = new ObjectOutputStream(response.getOutputStream()))
            for ( DataTransfer dataTransfer : dataTransferList)
        catch (IOException ioe)
            String errMsg = String.format("%s%s", EXCEPTION_ERR_MSG, ioe.getMessage());
                "writeTransferObject", errMsg, ioe);
Watch Question
Distinguished Expert 2020
This problem has been solved!
Unlock 1 Answer and 11 Comments.
See Answer
Why Experts Exchange?

Experts Exchange always has the answer, or at the least points me in the correct direction! It is like having another employee that is extremely experienced.

Jim Murphy
Programmer at Smart IT Solutions

When asked, what has been your best career decision?

Deciding to stick with EE.

Mohamed Asif
Technical Department Head

Being involved with EE helped me to grow personally and professionally.

Carl Webster
CTP, Sr Infrastructure Consultant
Ask ANY Question

Connect with Certified Experts to gain insight and support on specific technology challenges including:

  • Troubleshooting
  • Research
  • Professional Opinions
Did You Know?

We've partnered with two important charities to provide clean water and computer science education to those who need it most. READ MORE