[jira] Commented: (DIRSERVER-1577) An Empty cursor list blocks any other results

["Steve hammond (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/DIRSERVER-1577?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12925889#action_12925889 ] 

Steve hammond commented on DIRSERVER-1577:
------------------------------------------

but a CursorList extends Cursor, therefore it can be in a list. Maybe the constructor should throw if you try to do this.  



> An Empty cursor list blocks any other results
> ---------------------------------------------
>
>                 Key: DIRSERVER-1577
>                 URL: https://issues.apache.org/jira/browse/DIRSERVER-1577
>             Project: Directory ApacheDS
>          Issue Type: Bug
>          Components: core
>    Affects Versions: 2.0.0
>         Environment: Windows Eclipse
>            Reporter: Steve hammond
>            Assignee: Kiran Ayyagari
>             Fix For: 2.0.0-RC1
>
>
> If I create a CursorList that itself contains cursor lists, any empty list causes the next() function to return false.  In the below example if I change the order of adding to CursorList3 to add CursorList2 first, and then 1, this passes.  But the other order does not.
>    public void testCursorList()
>       throws Exception
>    {
>       SearchOperationContext opContext = new SearchOperationContext(testSession);
>       ArrayList<EntryFilteringCursor> cursorArray1 = new ArrayList<EntryFilteringCursor>();
>       ArrayList<EntryFilteringCursor> cursorArray2 = new ArrayList<EntryFilteringCursor>();
>       ArrayList<EntryFilteringCursor> cursorArray3 = new ArrayList<EntryFilteringCursor>();
>       ArrayList<Entry> results = new ArrayList<Entry>();
>       DefaultEntry entry = new DefaultEntry();
>       results.add(entry);
>       cursorArray2.add(new BaseEntryFilteringCursor(new ListCursor<Entry>(results), opContext));
>       
>       CursorList cursorList1 = new CursorList(cursorArray1, opContext);
>       CursorList cursorList2 = new CursorList(cursorArray2, opContext);
>       cursorArray3.add(cursorList1);
>       cursorArray3.add(cursorList2);
>       
>       CursorList cursorList3 = new CursorList(cursorArray3, opContext);
>       
>       assertTrue(cursorList3.next());
>    }

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