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From "Noble Paul (JIRA)" <j...@apache.org>
Subject [jira] Updated: (SOLR-994) EnumeratedEntityTransformer
Date Thu, 25 Jun 2009 08:21:07 GMT

     [ https://issues.apache.org/jira/browse/SOLR-994?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Noble Paul updated SOLR-994:
----------------------------

    Fix Version/s:     (was: 1.4)
                   1.5

it is currently possible to add this Transformer explicitly. A more elegant solution would
be to make it happen automatically w/o a Transformer. It can be a bigger initiative and i
am pushing this to 1.5

> EnumeratedEntityTransformer
> ---------------------------
>
>                 Key: SOLR-994
>                 URL: https://issues.apache.org/jira/browse/SOLR-994
>             Project: Solr
>          Issue Type: New Feature
>          Components: contrib - DataImportHandler
>    Affects Versions: 1.4
>            Reporter: Jared Flatow
>            Assignee: Shalin Shekhar Mangar
>            Priority: Minor
>             Fix For: 1.5
>
>         Attachments: SOLR-994.patch
>
>
> An EnumeratedEntityTransformer gives the Nth entity an accessible ${<entity>.n}
== N. In addition, the entity may specify a chunkSize attribute, which will cause the chunkSize'th
entity to gain the attribute $hasMore=true. A template for a nextUrl may also be specified
on the entity, that is different from the url template.
> Consider an API:
> http://host:port/path/to/resource?maximum_number_returned=50&return_start_index=0
> an entity could specify:
> <entity name="myEntity" processor="XPathEntityProcessor" transformer="EnumeratedEntityTransformer"
url="http://host:port/path/to/resource?maximum_number_returned=50&return_start_index=${myEntity.n}"
chunkSize=50>...</entity>
> This allows for fetching entities in chunks until there are < chunkSize returned.

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