[jira] [Resolved] (SOLR-12441) Add deeply nested documents URP

["David Smiley (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/SOLR-12441?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

David Smiley resolved SOLR-12441.
---------------------------------
       Resolution: Fixed
    Fix Version/s: 7.5

* added some basic javadocs.
* moved the URP to an inner class of the factory instead of the same source file.  I believe multiple classes in a source file is something we're trying to get away from.  I recall @thetaphi expressed some reasons but I forget
* note: the test methods here that actually test the indexed behavior are likely to be obsolete or need refactoring once we get to discussing how to properly index the path field.  You partially addressed them in your last commit but not completely.
* removed noIdChildren constant that was no longer being used.

> Add deeply nested documents URP
> -------------------------------
>
>                 Key: SOLR-12441
>                 URL: https://issues.apache.org/jira/browse/SOLR-12441
>             Project: Solr
>          Issue Type: Sub-task
>      Security Level: Public(Default Security Level. Issues are Public) 
>            Reporter: mosh
>            Assignee: David Smiley
>            Priority: Major
>             Fix For: 7.5
>
>          Time Spent: 7.5h
>  Remaining Estimate: 0h
>
> As discussed in [SOLR-12298|https://issues.apache.org/jira/browse/SOLR-12298], there ought to be an URP to add metadata fields to childDocuments in order to allow a transformer to rebuild the original document hierarchy.
> {quote}I propose we add the following fields:
>  # __nestParent__
>  # _nestLevel_
>  # __nestPath__
> __nestParent__: This field wild will store the document's parent docId, to be used for building the whole hierarchy, using a new document transformer, as suggested by Jan on the mailing list.
> _nestLevel_: This field will store the level of the specified field in the document, using an int value. This field can be used for the parentFilter, eliminating the need to provide a parentFilter, which will be set by default as "_level_:queriedFieldLevel".
> _nestLevel_: This field will contain the full path, separated by a specific reserved char e.g., '.'
>  for example: "first.second.third".
>  This will enable users to search for a specific path, or provide a regular expression to search for fields sharing the same name in different levels of the document, filtering using the level key if needed.
> {quote}



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