LuceneFieldProjection (Red Hat JBoss Enterprise Application Platform 8.0.0.GA public API)

java.lang.Object
- org.hibernate.search.backend.lucene.search.projection.impl.LuceneFieldProjection<F,V,P>

Type Parameters:

F - The type of individual field values obtained from the backend (before conversion).

V - The type of individual field values after conversion.

P - The type of the final projection result representing accumulated values of type V.

All Implemented Interfaces:

LuceneSearchProjection<P>, SearchProjection<P>
```
public class LuceneFieldProjection<F,V,P>
extends Object
```
A projection on the values of an index field.

Nested Class Summary

Nested Classes
Modifier and Type Class Description

static class LuceneFieldProjection.Factory<F>
- Nested classes/interfaces inherited from interface org.hibernate.search.backend.lucene.search.projection.impl.LuceneSearchProjection
  LuceneSearchProjection.Extractor<E,P>

Field Summary
- Fields inherited from interface org.hibernate.search.backend.lucene.search.projection.impl.LuceneSearchProjection
  log

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`Set<String>`	`indexNames()`
`org.hibernate.search.backend.lucene.search.projection.impl.LuceneFieldProjection.ValueFieldExtractor<?>`	`request(ProjectionRequestContext context)`	Request the collection of per-document data that will be used in `LuceneSearchProjection.Extractor.values(ProjectionExtractContext)`, making sure that the requirements for this projection are met.
`String`	`toString()`

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

- Method Detail
  - toString
```
public String toString()
```
    Overrides:
    
    toString in class Object
  - request
```
public org.hibernate.search.backend.lucene.search.projection.impl.LuceneFieldProjection.ValueFieldExtractor<?> request(ProjectionRequestContext context)
```
    Description copied from interface: LuceneSearchProjection
    
    Request the collection of per-document data that will be used in LuceneSearchProjection.Extractor.values(ProjectionExtractContext), making sure that the requirements for this projection are met.
    
    Parameters:
    
    context - An execution context for the request.
    
    Returns:
    
    An LuceneSearchProjection.Extractor, to extract the result of the projection from the Elasticsearch response.
  - indexNames
```
public final Set<String> indexNames()
```
    Specified by:
    
    indexNames in interface LuceneSearchProjection<P>