org.apache.solr.update.processor
Class FieldLengthUpdateProcessorFactory

java.lang.Object
  org.apache.solr.update.processor.UpdateRequestProcessorFactory
      org.apache.solr.update.processor.FieldMutatingUpdateProcessorFactory
          org.apache.solr.update.processor.FieldLengthUpdateProcessorFactory

All Implemented Interfaces:

NamedListInitializedPlugin, SolrCoreAware

public final class FieldLengthUpdateProcessorFactory
extends FieldMutatingUpdateProcessorFactory

Replaces any CharSequence values found in fields matching the specified conditions with the lengths of those CharSequences (as an Integer).

By default, this processor matches no fields.

For example, with the configuration listed below any documents containing String values (such as "abcdef" or "xyz") in a field declared in the schema using TrieIntField or TrieLongField would have those Strings replaced with the length of those fields as an Integer (ie: 6 and 3 respectively)

 <processor class="solr.FieldLengthUpdateProcessorFactory">
   <arr name="typeClass">
     <str>solr.TrieIntField</str>
     <str>solr.TrieLongField</str>
   </arr>
 </processor>

Nested Class Summary

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

FieldMutatingUpdateProcessorFactory.SelectorParams

Constructor Summary

FieldLengthUpdateProcessorFactory()

Method Summary

FieldMutatingUpdateProcessor.FieldNameSelector	getDefaultSelector(SolrCore core) Defines the default selection behavior when the user has not configured any specific criteria for selecting fields.
UpdateRequestProcessor	getInstance(SolrQueryRequest req, SolrQueryResponse rsp, UpdateRequestProcessor next)
void	init(NamedList args) Handles common initialization related to source fields for constructing the FieldNameSelector to be used.

Methods inherited from class org.apache.solr.update.processor.FieldMutatingUpdateProcessorFactory

getBooleanArg, getSelector, inform, oneOrMany, parseSelectorExclusionParams, parseSelectorParams

Methods inherited from class java.lang.Object

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

Constructor Detail

FieldLengthUpdateProcessorFactory

public FieldLengthUpdateProcessorFactory()

Method Detail

init

public void init(NamedList args)

Description copied from class: FieldMutatingUpdateProcessorFactory

Handles common initialization related to source fields for constructing the FieldNameSelector to be used. Will error if any unexpected init args are found, so subclasses should remove any subclass-specific init args before calling this method.

Specified by:

init in interface NamedListInitializedPlugin

Overrides:

init in class FieldMutatingUpdateProcessorFactory

getDefaultSelector

public FieldMutatingUpdateProcessor.FieldNameSelector getDefaultSelector(SolrCore core)

Description copied from class: FieldMutatingUpdateProcessorFactory

Defines the default selection behavior when the user has not configured any specific criteria for selecting fields. The Default implementation matches all fields, and should be overridden by subclasses as needed.

Overrides:

getDefaultSelector in class FieldMutatingUpdateProcessorFactory

See Also:

FieldMutatingUpdateProcessor.SELECT_ALL_FIELDS

getInstance

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

Specified by:

getInstance in class UpdateRequestProcessorFactory