CODEWITHSUNDEEP
c++memory-managementberkeley-db-xml
theCakeCoder
theCakeCoder

Reputation: 1148

Should use Berkeley DB XML without an on disk container?

I am considering to use BDB XML, as in memory application data store. It is XML like data with definition records and data records, i have provided XPath like quiring for data access. Its running well except for a memory overflow problem, that occurs in some cases which can't be avoided (so, just ant to avoid mem-overflow), and data is still needed for further processing (so, it can't be got to output stream yet). So, i was going to cache data to disk using delimited or XMl files, also was trying BOOST serialization. And thats when i thought of using some embedded db which can give me on-disk caching (when needed), encrypted on disk caching (i still do some encrypted XML caching to disk in certain cases but they are not related to the memory overflow thing). Now, I need:

so, should i use BDB XML ? it is most prominent solution and provides C++ API (my application is in platform independent C++), it provided XPath 2.0 for access (its needed), but i want to build and XML in it node by node and mostly access node by node and want to use it without an explicit on-disk container which is needed to be cleared out often during exec and deleted afterwards, but need it to not use more memory than specified buffer and use disk when needed.

Upvotes: 0

Views: 215

Answers (1)

MSalters
MSalters

Reputation: 179917

No. Check Joel's "back to Basics" column.

Fundamentally, BDB-XML is a good way to produce and consume XML, and XML in turn is a good way to exchange data. But XML is not intended for in-memory use, and thus BDB-XML shouldn't even enter the consideration.

Upvotes: 0

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