[jira] [Commented] (TIKA-927) Composite Properties

["Nick Burch (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/TIKA-927?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13277174#comment-13277174 ] 

Nick Burch commented on TIKA-927:
---------------------------------

Thanks Ray, applied in r1339380.
                
> Composite Properties
> --------------------
>
>                 Key: TIKA-927
>                 URL: https://issues.apache.org/jira/browse/TIKA-927
>             Project: Tika
>          Issue Type: Improvement
>          Components: metadata
>    Affects Versions: 1.1
>            Reporter: Ray Gauss II
>         Attachments: tika-composite-properties-core.diff
>
>
> A composite property type would be useful for maintaining backwards compatibility when migrating old properties or aliasing a single primary property to several secondary fields.
> To achieve this the Property class could allow for defining a composite type which aliases a primary Property and an optional list of secondaryExtractProperties which can be used to set additional metadata properties with the same value as the primary.
> The name of the composite property would be taken from its primary property.
> The primary and secondary children of a composite property must not be composite properties themselves or a PropertyTypeException will be thrown.

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