Class FieldType

Describes the properties of a field.

Inheritance

System.Object

FieldType

Implements

IIndexableFieldType

Namespace: Lucene.Net.Documents

Assembly: Lucene.Net.dll

Syntax

public class FieldType : object, IIndexableFieldType

Constructors

FieldType()

Create a new FieldType with default properties.

Declaration

public FieldType()

FieldType(FieldType)

Create a new mutable FieldType with all of the properties from ref

Declaration

public FieldType(FieldType ref)

Parameters

Type	Name	Description
FieldType	ref

Properties

DocValueType

Sets the field's DocValuesType, or set to NONE if no DocValues should be stored.

The default is NONE (no DocValues).

Declaration

public virtual DocValuesType DocValueType { get; set; }

Property Value

Type	Description
DocValuesType

IndexOptions

Sets the indexing options for the field.

The default is DOCS_AND_FREQS_AND_POSITIONS.

Declaration

public virtual IndexOptions IndexOptions { get; set; }

Property Value

Type	Description
IndexOptions

IsIndexed

Set to true to index (invert) this field. The default is false.

Declaration

public virtual bool IsIndexed { get; set; }

Property Value

Type	Description
System.Boolean

IsStored

Set to true to store this field. The default is false.

Declaration

public virtual bool IsStored { get; set; }

Property Value

Type	Description
System.Boolean

IsTokenized

Set to true to tokenize this field's contents via the configured Analyzer. The default is false.

Declaration

public virtual bool IsTokenized { get; set; }

Property Value

Type	Description
System.Boolean

NumericPrecisionStep

Sets the numeric precision step for the field.

This has no effect if NumericType returns NONE.

The default is PRECISION_STEP_DEFAULT.

Declaration

public virtual int NumericPrecisionStep { get; set; }

Property Value

Type	Description
System.Int32

NumericType

Specifies the field's numeric type, or set to null if the field has no numeric type. If non-null then the field's value will be indexed numerically so that NumericRangeQuery can be used at search time.

Declaration

public virtual NumericType NumericType { get; set; }

Property Value

Type	Description
NumericType

OmitNorms

Set to true to omit normalization values for the field. The default is false.

Declaration

public virtual bool OmitNorms { get; set; }

Property Value

Type	Description
System.Boolean

StoreTermVectorOffsets

Set to true to also store token character offsets into the term vector for this field. The default is false.

Declaration

public virtual bool StoreTermVectorOffsets { get; set; }

Property Value

Type	Description
System.Boolean

StoreTermVectorPayloads

Set to true to also store token payloads into the term vector for this field. The default is false.

Declaration

public virtual bool StoreTermVectorPayloads { get; set; }

Property Value

Type	Description
System.Boolean

StoreTermVectorPositions

Set to true to also store token positions into the term vector for this field. The default is false.

Declaration

public virtual bool StoreTermVectorPositions { get; set; }

Property Value

Type	Description
System.Boolean

StoreTermVectors

Set to true if this field's indexed form should be also stored into term vectors. The default is false.

Declaration

public virtual bool StoreTermVectors { get; set; }

Property Value

Type	Description
System.Boolean

Methods

Freeze()

Prevents future changes. Note, it is recommended that this is called once the FieldType's properties have been set, to prevent unintentional state changes.

Declaration

public virtual void Freeze()

ToString()

Prints a FieldType for human consumption.

Declaration

public override sealed string ToString()

Returns

Type	Description
System.String

Implements

IIndexableFieldType