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Posted to solr-dev@lucene.apache.org by "Jared Flatow (JIRA)" <ji...@apache.org> on 2009/01/29 03:28:59 UTC
[jira] Updated: (SOLR-994) EnumeratedEntityTransformer
[ https://issues.apache.org/jira/browse/SOLR-994?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Jared Flatow updated SOLR-994:
------------------------------
Attachment: SOLR-994.patch
> 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
> Priority: Minor
> Fix For: 1.4
>
> 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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