Package org.apache.solr.response.transform

Class ChildDocTransformerFactory

java.lang.Object

org.apache.solr.response.transform.TransformerFactory

org.apache.solr.response.transform.ChildDocTransformerFactory

All Implemented Interfaces:

NamedListInitializedPlugin

public class ChildDocTransformerFactory
extends TransformerFactory

Attaches all descendants (child documents) to each parent document.

Optionally you can provide a "parentFilter" param to designate which documents are the root documents (parent-most documents). Solr can figure this out on its own but you might want to specify it.

Optionally you can provide a "childFilter" param to filter out which child documents should be returned and a "limit" param which provides an option to specify the number of child documents to be returned per parent document.

Examples - [child parentFilter="fieldName:fieldValue"] [child parentFilter="fieldName:fieldValue" childFilter="fieldName:fieldValue"] [child parentFilter="fieldName:fieldValue" childFilter="fieldName:fieldValue" limit=20]

Since:

solr 4.9

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.solr.response.transform.TransformerFactory

TransformerFactory.FieldRenamer

Field Summary

Fields

Modifier and Type	Field	Description
static final String	CACHE_NAME

Fields inherited from class org.apache.solr.response.transform.TransformerFactory

defaultFactories, defaultUserArgs

Constructor Summary

Constructors

Constructor	Description
ChildDocTransformerFactory()

Method Summary

Modifier and Type	Method	Description
DocTransformer	create(String field, org.apache.solr.common.params.SolrParams params, SolrQueryRequest req)
protected static String	processPathHierarchyQueryString(String queryString)

Methods inherited from class org.apache.solr.response.transform.TransformerFactory

init

Methods inherited from class java.lang.Object

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

Field Details

CACHE_NAME

public static final String CACHE_NAME

See Also:

• Constant Field Values

Constructor Details

ChildDocTransformerFactory

public ChildDocTransformerFactory()

Method Details

create

public DocTransformer create(String field,
 org.apache.solr.common.params.SolrParams params,
 SolrQueryRequest req)

Specified by:

create in class TransformerFactory

processPathHierarchyQueryString

protected static String processPathHierarchyQueryString(String queryString)