Java to save big hashmap object in file instead of database

Hi,

I have encountered an issue mostly related to the MongoDB io.

I need to read a large number of records out of MongoDB whenever there is a new record coming in and this new records will cause every records to change in the DB.

So I am thinking of a solution that I read all the records once, convert them into an HashMap object, modify the object with the new record, and then save the hashmap object to hard drive.

I wonder if the solution is feasible or functionally doable.

Thanks
wsyyAsked:
Who is Participating?

[Product update] Infrastructure Analysis Tool is now available with Business Accounts.Learn More

x
I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

for_yanCommented:
why not ? Serilaize and store HashMap to drive, and then read it and modify when necessary. and strore again.
The question is how fast it would be in comparison with database. Very well may be faster, but that is always a matter of experimenting.
0
for_yanCommented:
If your process is the only one which uses this data that may well be more effective
0

Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
CEHJCommented:
Why not write the new stuff with Mongo?
0
wsyyAuthor Commented:
Mongo IO has been an issue so it is not feasible.
0
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today
Java

From novice to tech pro — start learning today.