org.apache.solr.update.processor
Class CloneFieldUpdateProcessorFactory

java.lang.Object
  org.apache.solr.update.processor.UpdateRequestProcessorFactory
      org.apache.solr.update.processor.CloneFieldUpdateProcessorFactory

All Implemented Interfaces:

NamedListInitializedPlugin, SolrCoreAware

public class CloneFieldUpdateProcessorFactory
extends UpdateRequestProcessorFactory
implements SolrCoreAware

Clones the values found in any matching source field into the configured dest field.

While the dest field must be a single <str>, the source fields can be configured as either:

• One or more <str>
• An <arr> of <str>
• A <lst> containing FieldMutatingUpdateProcessorFactory style selector arguments

If the dest field already exists in the document, then the values from the source fields will be added to it. The "boost" value associated with the dest will not be changed, and any boost specified on the source fields will be ignored. (If the dest field did not exist prior to this processor, the newly created dest field will have the default boost of 1.0)

In the example below, the category field will be cloned into the category_s field, both the authors and editors fields will be cloned into the contributors field, and any field with a name ending in _price -- except for list_price -- will be cloned into the all_prices field.

   <updateRequestProcessorChain name="multiple-clones">
     <processor class="solr.CloneFieldUpdateProcessorFactory">
       <str name="source">category</str>
       <str name="dest">category_s</str>
     </processor>
     <processor class="solr.CloneFieldUpdateProcessorFactory">
       <arr name="source">
         <str>authors</str>
         <str>editors</str>
       </arr>
       <str name="dest">contributors</str>
     </processor>
     <processor class="solr.CloneFieldUpdateProcessorFactory">
       <lst name="source">
         <str name="fieldRegex">.*_price</str>
         <lst name="exclude">
           <str name="fieldName">list_price</str>
         </lst>
       </lst>
       <str name="dest">all_prices</str>
     </processor>
   </updateRequestProcessorChain>
 

Nested Class Summary

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

UpdateRequestProcessorFactory.RunAlways

Field Summary

static String	DEST_PARAM
static String	SOURCE_PARAM

Constructor Summary

CloneFieldUpdateProcessorFactory()

Method Summary

UpdateRequestProcessor	getInstance(SolrQueryRequest req, SolrQueryResponse rsp, UpdateRequestProcessor next)
protected FieldMutatingUpdateProcessor.FieldNameSelector	getSourceSelector()
void	inform(SolrCore core)
void	init(NamedList args)

Methods inherited from class java.lang.Object

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

Field Detail

SOURCE_PARAM

public static final String SOURCE_PARAM

See Also:

Constant Field Values

DEST_PARAM

public static final String DEST_PARAM

See Also:

Constant Field Values

Constructor Detail

CloneFieldUpdateProcessorFactory

public CloneFieldUpdateProcessorFactory()

Method Detail

getSourceSelector

protected final FieldMutatingUpdateProcessor.FieldNameSelector getSourceSelector()

init

public void init(NamedList args)

Specified by:

init in interface NamedListInitializedPlugin

Overrides:

init in class UpdateRequestProcessorFactory

inform

public void inform(SolrCore core)

Specified by:

inform in interface SolrCoreAware

getInstance

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

Specified by:

getInstance in class UpdateRequestProcessorFactory