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
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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