Class FieldInfo

Access to the Field Info file that describes document fields and whether or not they are indexed. Each segment has a separate Field Info file. Objects of this class are thread-safe for multiple readers, but only one thread can be adding documents at a time, with no other reader or writer threads accessing this object.

Inheritance
System.Object
FieldInfo
Assembly: DistributedLucene.Net.dll
Syntax
public sealed class FieldInfo : object

Constructors

Name Description
FieldInfo(String, Boolean, Int32, Boolean, Boolean, Boolean, IndexOptions, DocValuesType, DocValuesType, IDictionary<String, String>)

Sole Constructor.

@lucene.experimental

Properties

Name Description
Attributes

Returns internal codec attributes map. May be null if no mappings exist.
DocValuesGen

Gets or Sets the docValues generation of this field, or -1 if no docValues.

DocValuesType
HasDocValues

Returns true if this field has any docValues.
HasNorms

Returns true if this field actually has any norms.
HasPayloads

Returns true if any payloads exist for this field.
HasVectors

Returns true if any term vectors exist for this field.
IndexOptions

Returns IndexOptions for the field, or null if the field is not indexed

IsIndexed

Returns true if this field is indexed.
Name

Field's name

NormType

Returns DocValuesType of the norm. This may be NONE if the field has no norms.
Number

Internal field number

OmitsNorms

Returns true if norms are explicitly omitted for this field

Methods

Name Description
GetAttribute(String)

Get a codec attribute value, or null if it does not exist
PutAttribute(String, String)

Puts a codec attribute value.

this is a key-value mapping for the field that the codec can use to store additional metadata, and will be available to the codec when reading the segment via GetAttribute(String)

If a value already exists for the field, it will be replaced with the new value.

Extension Methods