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Storing data rows in hashmap

rachana ravali
Ranch Hand

Joined: Jun 20, 2006
Posts: 32
Hi ,
i have a requirement where i have to put rows from database into hashmap as keys and values.
I have a doubt whether hashmap can support large data such as 2000 records or entries.

Can any one please clarify whether it is a good idea to have such as huge data in maps for avoiding network traffic with database.

Thanks in advance.
Manish Singh
Ranch Hand

Joined: Jan 26, 2007
Posts: 160
If it reduces the DB calls then yes. And you need to look at whats the size of the entry. I mean you should be aware of the total memory taken by the hashmap
Paul Clapham

Joined: Oct 14, 2005
Posts: 19469

2000? That isn't "huge". It isn't even "large". Consider that your memory is measured in megabytes -- that's millions of bytes.
rachana ravali
Ranch Hand

Joined: Jun 20, 2006
Posts: 32
thanks manish and paul ... thank you very much for replying..
I agree. Here's the link:
subject: Storing data rows in hashmap