Package org.apache.solr.update.processor

Class DefaultValueUpdateProcessorFactory

java.lang.Object

org.apache.solr.update.processor.UpdateRequestProcessorFactory

org.apache.solr.update.processor.AbstractDefaultValueUpdateProcessorFactory

org.apache.solr.update.processor.DefaultValueUpdateProcessorFactory

All Implemented Interfaces:

NamedListInitializedPlugin

public class DefaultValueUpdateProcessorFactory
extends AbstractDefaultValueUpdateProcessorFactory

An update processor that adds a constant default 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 price and/or type fields, it will be given default values of 0.0 and/or unknown (respectively).

 <processor class="solr.DefaultValueUpdateProcessorFactory">
   <str name="fieldName">price</str>
   <float name="value">0.0</float>
 </processor>
 <processor class="solr.DefaultValueUpdateProcessorFactory">
   <str name="fieldName">type</str>
   <str name="value">unknown</str>
 </processor>
 

Since:

4.0.0

Nested Class Summary

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

UpdateRequestProcessorFactory.RunAlways

Field Summary

Fields

Modifier and Type	Field	Description
protected Object	defaultValue

Fields inherited from class org.apache.solr.update.processor.AbstractDefaultValueUpdateProcessorFactory

fieldName

Constructor Summary

Constructors

Constructor	Description
DefaultValueUpdateProcessorFactory()

Method Summary

Modifier and Type	Method	Description
UpdateRequestProcessor	getInstance(SolrQueryRequest req, SolrQueryResponse rsp, UpdateRequestProcessor next)
void	init(org.apache.solr.common.util.NamedList<?> args)	init will be called just once, immediately after creation.

Methods inherited from class java.lang.Object

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

Field Detail

defaultValue

protected Object defaultValue

Constructor Detail

DefaultValueUpdateProcessorFactory

public DefaultValueUpdateProcessorFactory()

Method Detail

init

public void init(org.apache.solr.common.util.NamedList<?> args)

Description copied from interface: NamedListInitializedPlugin

init will be called just once, immediately after creation.

Source of the initialization arguments will typically be solrconfig.xml, but will ultimately depends on the plugin itself

Specified by:

init in interface NamedListInitializedPlugin

Overrides:

init in class AbstractDefaultValueUpdateProcessorFactory

Parameters:

args - non-null list of initialization parameters (may be empty)

getInstance

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

Specified by:

getInstance in class UpdateRequestProcessorFactory