Annotation Interface FieldProjection

@Documented
@Target(PARAMETER)
@Retention(RUNTIME)
@MethodParameterMapping(processor=@MethodParameterMappingAnnotationProcessorRef(type=org.hibernate.search.mapper.pojo.mapping.definition.annotation.processing.impl.FieldProjectionProcessor.class,retrieval=CONSTRUCTOR))
public @interface FieldProjection

Maps a constructor parameter to a projection to the value of a field in the indexed document.

See Also:

• SearchProjectionFactory.field(String, Class, ValueModel)

Optional Element Summary

Optional Elements

Modifier and Type	Optional Element	Description
ValueConvert	convert	Deprecated. Use valueModel() instead.
String	path
ValueModel	valueModel

Element Details

path

String path

Returns:

The path to the index field whose value will be extracted. Defaults to the name of the annotated constructor parameter, if it can be retrieved (requires the class to be compiled with the -parameters flag; otherwise an empty path will lead to a failure).

See Also:

• SearchProjectionFactory.field(String, Class)

Default:

""

convert

@Deprecated(since="7.2")
ValueConvert convert

Deprecated.

Use valueModel() instead. Note, setting convert() to non-default ValueConvert.NO will result in an exception at runtime, use valueModel() with ValueModel.INDEX instead.

Setting valueModel() to any non-default value will take precedence over convert() default ValueConvert.YES value.

Returns:

A value controlling how the data fetched from the backend should be converted.

See Also:

• ValueConvert
• SearchProjectionFactory.field(String, Class, org.hibernate.search.engine.search.common.ValueConvert)

Default:

DEFAULT

valueModel

ValueModel valueModel

Returns:

The model value, determines how the data fetched from the backend should be converted.

See Also:

• ValueModel
• SearchProjectionFactory.field(String, Class, ValueModel)

Default:

DEFAULT