Support for "Required" field Property
-------------------------------------
Key: SOLR-181
URL: https://issues.apache.org/jira/browse/SOLR-181
Project: Solr
Issue Type: Improvement
Components: update
Reporter: Greg Ludington
Priority: Minor
In certain situations, it can be helpful to require every document in your
index has a value for a given field. While ideally the indexing client(s)
should be responsible enough to add all necessary fields, this patch allows it
to be enforced in the Solr schema, by adding a required property to a field
entry. For example, with this in the schema:
<field name="name" type="nametext" indexed="true" stored="true"
required="true"/>
A request to index a document without a name field will result in this response:
<result status="1">org.apache.solr.core.SolrException: missing required fields:
name
(and then, of course, the stack trace)
</result>
The meat of this patch is that DocumentBuilder.getDoc() throws a SolrException
if not all required fields have values; this may not work well as is with
SOLR-139, Support updateable/modifiable documents, and may have to be changed
depending on that issue's final disposition.
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