[kepler-dev] source code package

[Jing Tao]

Hi, Bing:

I also put the comment below.

Jing

Bing Zhu wrote:

>Hi Jing and Chad,
>
>I put my comments below.
>
>Bing
>
>
>-----Original Message-----
>From: Jing Tao [mailto:tao at nceas.ucsb.edu]
>Sent: Monday, August 08, 2005 11:21 AM
>To: Bing Zhu; berkley at nceas.ucsb.edu; jones at nceas.ucsb.edu
>Subject: source code package
>
>
>Hi, Bing:
>
>Chad and I took a look at the source code package in the new
>org.kepler.objectmanager. We are wondering if
>org.kepler.objectmanager.data sub-directory  is better in
>org.kepler.data or org.kepler.datasource. You know, they are not part of
>object manager and mainly put the data file into a local relational db.
>
>[Bing] If there is place called 'org.kepler.data' or
>'org.kepler.datasource',
>          it is a good place for putting data related classes into it.
>
>
>  
>
No, there isn't yet. But you may create it.


>By the way,  there are still 7 classes named such as
>EcogridCompressedDataCacheItem in org.ecoinformatics.seek.datasource.
>They are sub-classes of DataCacheObject. So I think it is better to put
>the 7 classes into org.kepler.objectmanager.cache dir in which their
>parent is.
>
>[Bing] I left 7 classes in org.ecoinformatics.seek.datasource since they
>          are apparently dealing with data from ecogrid. So I think it is
>          appropriate for them to stay there. Let me know.
>
>  
>
Eventually we will move everything from org.ecoinformatics.seek to 
org.kepler. Since those files are children of DataCacheObject, it is 
better to put in org.kepler.objectmanager.cache.

>How do you think about the re-arrangement? If you agree, would you mind
>moving them? Thanks.
>
>[Bing] No problem. Once we agree on how to rearrange those files, I will do
>         it immediately.
>
>
>The EcogridDataCacheItem was the subclass from DataCacheItem, but now it
>comes from DataCacheObject. In kepler, the code still has both
>DataCacheItem and DataCacheObject class.  What is the difference between
>them? Is DataCacheObject a replacement of DataCacheItem?
>
>[Bing] The 'DataCacheItem' was renamed to 'DataCacehObject' since we have
>          new design for 'cache items'. I am surprised that somewhere still
>uses 'DataCacheItem'.
>
>[Bing] The 'cache item' in DataCacheItem is really a headache for the new
>implementation
>          of 'cache items' for ksw file. The old implementation use a base
>class 'DataCacheObject'
>          as basic class for cache items. There are 2 kinds of cache items,
>'DataCacheObject' and 'DataCacheFileObject',
>         where 'DataCacheFileObject' is a subclass of 'DataCacheObject'.
>         But 'DataCacheFileObject' is defined as a class to implement
>'Runnable', I don't understand why. Obviously,
>         the previous design of cache manager is to handle caching data from
>ecogrid.  But now we have re-designed
>         cache items for ksw. So we need to talk about it!!!!!
>Thanks.
>
>Jing
>
>
>  
>