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https://issues.apache.org/jira/browse/TRANSACTION-9?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12513906
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Jörg Heinicke commented on TRANSACTION-9:
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There seems to be an inconsistency: How to lock a not-yet-existing physical
resource that "is about to be created"? We can follow the java.io.File
semantics here and allow Resource instantiation for non-existing physical
resources. Then Resource should have a create method as File has. Otherwise
lock methods should be moved to ResourceManager. I prefer the first one which
removes create* from ResourceManager.
I wonder if we need the generalization Property. Also, in which way is the key
in the map different from the name of the Property? If we do it the generalized
way I'd use getProperty(String) and setProperty(String, Object), maybe
additionally a getPropertyNames(). The Map is implementation. And always being
forced to set all properties at once using setProperties(Map) does not make
much sense IMO.
readStream() and writeStream() should be in Java Bean style with get.
What's the use of try*Lock()?
> [transaction] Add full file management capabilities to the FileResourceManager
> ------------------------------------------------------------------------------
>
> Key: TRANSACTION-9
> URL: https://issues.apache.org/jira/browse/TRANSACTION-9
> Project: Commons Transaction
> Issue Type: Improvement
> Environment: Operating System: All
> Platform: All
> Reporter: Peter Fassev
> Assignee: Oliver Zeigermann
> Priority: Minor
> Fix For: 2.0
>
> Attachments: filemanager.zip
>
>
> Hi,
> As stated in the doc the FileResourceManager is:
> "A resource manager for streamable objects stored in a file system"
> I agree, that this is a resource manager, but it could be easily extended, to
> support a full file management system. It will be very helpful to have
> additional methods like renameResource(), getResourceSize(),
> getResourceTime(),
> setResourceTime() etc. This are common file operations, which should be
> managed
> by the FileResourceManager.
> Further it will be very helpful to have (real) support for resource
> collections
> (folders). It will be necessary to distinguish between single resources
> (files)
> and collections (folders).
> Together, this features will enable a transactional access to any file based
> resources - for instance a document repository.
> Are there plans for such extensions and if not, will they actually fit in the
> goals of the transaction library?
> If not, please open the underlying structure, like the inner class
> TransactionContext, in order to add extensions the file management. For
> instance, it will be good to have a separate factory method, which creates
> the
> context.
> If you are interested in this proposal, I am ready to contribute to this
> project. I consider myself as an experienced java developer and I will be
> glad
> to help you.
> Best regards
> Peter Fassev
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