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https://issues.apache.org/jira/browse/LUCENE-2310?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12847914#action_12847914
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Chris Male commented on LUCENE-2310:
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The patch I just attached makes a test in InstantiatedIndex fail because it
tries to remove a field through the iterator. This illustrates a concern I
have with making the iterator unmodifiable, there is no efficient way to remove
a field while iterating, without also running into a CCE. I will think over
this issue a little bit before deciding whether to continue with the
unmodifiable iterator or not.
> Reduce Fieldable, AbstractField and Field complexity
> ----------------------------------------------------
>
> Key: LUCENE-2310
> URL: https://issues.apache.org/jira/browse/LUCENE-2310
> Project: Lucene - Java
> Issue Type: Sub-task
> Components: Index
> Reporter: Chris Male
> Attachments: LUCENE-2310-Deprecate-AbstractField-CleanField.patch,
> LUCENE-2310-Deprecate-AbstractField.patch,
> LUCENE-2310-Deprecate-AbstractField.patch,
> LUCENE-2310-Deprecate-AbstractField.patch,
> LUCENE-2310-Deprecate-DocumentGetFields-core.patch,
> LUCENE-2310-Deprecate-DocumentGetFields.patch,
> LUCENE-2310-Deprecate-DocumentGetFields.patch
>
>
> In order to move field type like functionality into its own class, we really
> need to try to tackle the hierarchy of Fieldable, AbstractField and Field.
> Currently AbstractField depends on Field, and does not provide much more
> functionality that storing fields, most of which are being moved over to
> FieldType. Therefore it seems ideal to try to deprecate AbstractField (and
> possible Fieldable), moving much of the functionality into Field and
> FieldType.
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