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From Oystein.Grov...@Sun.COM (Øystein Grøvlen)
Subject Re: [jira] Created: (DERBY-646) In-memory backend storage support
Date Mon, 31 Oct 2005 13:05:05 GMT
>>>>> "SF" == Stephen Fitch <051933f@acadiau.ca> writes:

    SF> Hi Mike,
    SF> the issue I'm having is I can't  find a way to tell the network server
    SF> what StorageFactory to use from the network client driver.

    SF> On the  embedded side  of things, I  just define a  new subsubprotocol
    SF> when I start java with:

    SF> -Dderby.subSubProtocol.memory=org.apache.derby.impl.io.MemoryStorageFactory
    SF> (alternatively I can change some of the engine code and register it as
    SF> a persistent service which results in the same issue)

I am a bit confused about why the use of StorageFactory is decided
when opening a connection.  Will it be possible for different
connections to use different StorageFactory within the same system?  I
guess different StorageFactory within the same database is not
possible.  In that case, why not make it a parameter when creating the

Generally, I would think it would be useful for a single
connection/database be able to use main-memory storage for some tables
and disk storage for others.


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