org.apache.solr.update.processor

Class UUIDUpdateProcessorFactory

java.lang.Object

org.apache.solr.update.processor.UpdateRequestProcessorFactory

org.apache.solr.update.processor.UUIDUpdateProcessorFactory

All Implemented Interfaces:

NamedListInitializedPlugin

public class UUIDUpdateProcessorFactory
extends UpdateRequestProcessorFactory

An update processor that adds a newly generated UUID value to any document being added that does not already have a value in the specified field.

In the example configuration below, if a document does not contain a value in the id field, a new UUID will be generated and added as the value of that field.

 <processor class="solr.UUIDUpdateProcessorFactory">
   <str name="fieldName">id</str>
 </processor>
 

You can also incoke the processor with request handler param(s) as uuid.fieldname with processor=uuid curl -X POST -H Content-Type: application/json http://localhost:8983/solr/test/update/json/docs?processor=uuid;ampersand;uuid.fieldName=id;ampersand;commit=true --data-binary {"id":"1","title": "titleA"} NOTE: The param(s) provided in request handler will override / supersede processor's config. If field name is omitted in processor configuration and not provided in request handler param(s), then @{link org.apache.solr.schema.IndexSchema#getUniqueKeyField()} is used as field and a new UUID will be generated and added as the value of that field. The field type of the uniqueKeyField must be anything which accepts a string or UUID value.

Since:

4.0.0

See Also:

UUID

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.solr.update.processor.UpdateRequestProcessorFactory

UpdateRequestProcessorFactory.RunAlways

Field Summary

Fields

Modifier and Type	Field and Description
protected String	fieldName
static String	NAME

Constructor Summary

Constructors

Constructor and Description
UUIDUpdateProcessorFactory()

Method Summary

Modifier and Type	Method and Description
UpdateRequestProcessor	getInstance(SolrQueryRequest req, SolrQueryResponse rsp, UpdateRequestProcessor next)
void	init(NamedList args)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

NAME

public static final String NAME

See Also:

Constant Field Values

fieldName

protected String fieldName

Constructor Detail

UUIDUpdateProcessorFactory

public UUIDUpdateProcessorFactory()

Method Detail

init

public void init(NamedList args)

Specified by:

init in interface NamedListInitializedPlugin

Overrides:

init in class UpdateRequestProcessorFactory

getInstance

public UpdateRequestProcessor getInstance(SolrQueryRequest req,
                                          SolrQueryResponse rsp,
                                          UpdateRequestProcessor next)

Specified by:

getInstance in class UpdateRequestProcessorFactory