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From "Cheng Che Chen (JIRA)" <j...@apache.org>
Subject [jira] Commented: (DERBY-646) In-memory backend storage support
Date Mon, 16 Feb 2009 11:23:00 GMT

    [ https://issues.apache.org/jira/browse/DERBY-646?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12673850#action_12673850
] 

Cheng Che Chen commented on DERBY-646:
--------------------------------------

Hi folks,

I've implemented the interfaces org.apache.derby.io.{StorageFile,StorageRandomAccessFile,WritableStorageFactory}
such that all file system operations are emulated entirely in memory, producing no file or
directory on disk.  I'm more than happy to contribute the implementation.

However, I have a build problem for which I hope to get some help.  To start, for simplicity,
I added my source files to "trunk/java/engine/org/apache/derby/impl/io" -- so that I didn't
have to create/modify any "build.xml" files.  I then tried to build the sources and the JAR
files.  The sources built with no problem -- all of my classes appeared in "trunk/classes/org/apache/derby/impl/io".
 However, for some reason, the JAR build process did not put my classes into "derby.jar".
 As a result, I had to set the JAVA class path to "trunk/classes" during testing.

I'd appreciate any help resolving this build problem.

Thanks.


> In-memory backend storage support
> ---------------------------------
>
>                 Key: DERBY-646
>                 URL: https://issues.apache.org/jira/browse/DERBY-646
>             Project: Derby
>          Issue Type: New Feature
>          Components: Store
>         Environment: All
>            Reporter: Stephen Fitch
>         Attachments: derby-646-1a-raw-compiles.diff, derby-646-1a-raw-compiles.stat,
svn.diff
>
>
> To allow creation and modification of databases in-memory without requiring disk access
or space to store the database.

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