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Date: Mon, 24 Nov 2008 03:02:44 -0800 (PST)
From: "Marcel Reutegger (JIRA)" <jira@apache.org>
To: java-dev@lucene.apache.org
Subject: [jira] Updated: (LUCENE-1468) FSDirectory.list() is inconsistent
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     [ https://issues.apache.org/jira/browse/LUCENE-1468?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Marcel Reutegger updated LUCENE-1468:
-------------------------------------

    Attachment: DirectoryTest.java

Test cases to illustrate the issue.

> FSDirectory.list() is inconsistent
> ----------------------------------
>
>                 Key: LUCENE-1468
>                 URL: https://issues.apache.org/jira/browse/LUCENE-1468
>             Project: Lucene - Java
>          Issue Type: Bug
>          Components: Store
>    Affects Versions: 2.1, 2.2, 2.3, 2.3.1, 2.3.2, 2.4
>            Reporter: Marcel Reutegger
>            Priority: Minor
>         Attachments: DirectoryTest.java
>
>
> LUCENE-638 added a check to the FSDirectory.list() method to only return files that are Lucene related. I think this change made the FSDirectory implementation inconsistent with all other methods in Directory. E.g. you can create a file with an arbitrary name using FSDirectory, fileExists() will report that it is there, deleteFile() will remove it, but the array returned by list() will not contain the file.
> The actual issue that was reported in LUCENE-638 was about sub directories. Those should clearly not be listed, but IMO it is not the responsibility of a Directory implementation to decide what kind of files can be created or listed. The Directory class is an abstraction of a directory and it should't to more than that.

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