Performance/Memory optimization with hashmap and weakhasmap

Asked Jun 12 '15 at 14:17

Active Jun 12 '15 at 14:17

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I have a question related to hashmap and weakhashmap.In my application, I will fetch 100k records from DB every time and put it in a map. After I do some manipulations with first set of records, I will fetch next 100k records.

In this situation, which map implementation is appropriate? Is there any better data structure to hold such huge data?

Thanks in advance.

asked Jun 12 '15 at 14:17

Java P

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...probably a `HashMap`. Size of data doesn't matter nearly as much as what you need to do with that data. – Louis Wasserman Jun 12 '15 at 15:03

Performance/Memory optimization with hashmap and weakhasmap

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