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From Jason Dillon <>
Subject Re: GroupId for DayTrader needed.
Date Sat, 22 Jul 2006 07:33:02 GMT
Anyone know of a Berkeley-DB-ish lib for Java that is compatible with  
the ASL?  Is the SleepyCat/Berkeley DB Java license compatible?  Or  
is jdbm any good?


On Jul 21, 2006, at 4:34 PM, Dain Sundstrom wrote:

> On Jul 20, 2006, at 4:01 PM, Jason Dillon wrote:
>> It is not just how we use the m2-style repo inside of G, but also  
>> how we build G using m2 that will cause problems for windows peeps.
>> The later is going to be more trouble to resolve I think.
>> I'm still thinking it would be a good idea to have some sort of  
>> file-system abstraction for our m2-style repo... in the same way  
>> that SVN has an abstraction... that could use BDB or a regular  
>> file system (ie. FSFS) for actual storage.  WIth something like  
>> this, we could have the default distro use a BDB-ish filesystem  
>> and completely resolve the windows file name limitations.  With a  
>> set of cli tools we can easily allow the BDB-ish to be converted  
>> to a FSFS.
> The repo is an interface.  Well it is really three interfaces  
> depending how much you want to implement:
> public interface Repository {
>     boolean contains(Artifact artifact);
>     File getLocation(Artifact artifact);
>     LinkedHashSet getDependencies(Artifact artifact);
> }
> public interface WriteableRepository extends Repository {
>     void copyToRepository(File source, Artifact destination,  
> FileWriteMonitor monitor) throws IOException;
>     void copyToRepository(InputStream source, int size, Artifact  
> destination, FileWriteMonitor monitor) throws IOException;
> }
> public interface ListableRepository extends Repository {
>     SortedSet list();
>     SortedSet list(Artifact query);
> }
> We have an M1 and M2 implementation of these, so if you want  
> another one you have some good base code to start with.
> -dain

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