java.lang.Object
- org.apache.lucene.document.FieldType

All Implemented Interfaces:

IndexableFieldType
```
public class FieldType
extends Object
implements IndexableFieldType
```
Describes the properties of a field.

Nested Class Summary

Nested Classes
Modifier and Type Class Description

static class FieldType.NumericType
Data type of the numeric value

Constructor Summary

Constructors
Constructor	Description
`FieldType()`	Create a new FieldType with default properties.
`FieldType(FieldType ref)`	Create a new mutable FieldType with all of the properties from `ref`

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`FieldInfo.DocValuesType`	`docValueType()`	DocValues `FieldInfo.DocValuesType`: if non-null then the field's value will be indexed into docValues.
`void`	`freeze()`	Prevents future changes.
`boolean`	`indexed()`	True if this field should be indexed (inverted)
`FieldInfo.IndexOptions`	`indexOptions()`	`FieldInfo.IndexOptions`, describing what should be recorded into the inverted index
`int`	`numericPrecisionStep()`	Precision step for numeric field.
`FieldType.NumericType`	`numericType()`	NumericType: if non-null then the field's value will be indexed numerically so that `NumericRangeQuery` can be used at search time.
`boolean`	`omitNorms()`	True if normalization values should be omitted for the field.
`void`	`setDocValueType(FieldInfo.DocValuesType type)`	Set's the field's DocValuesType
`void`	`setIndexed(boolean value)`	Set to `true` to index (invert) this field.
`void`	`setIndexOptions(FieldInfo.IndexOptions value)`	Sets the indexing options for the field:
`void`	`setNumericPrecisionStep(int precisionStep)`	Sets the numeric precision step for the field.
`void`	`setNumericType(FieldType.NumericType type)`	Specifies the field's numeric type.
`void`	`setOmitNorms(boolean value)`	Set to `true` to omit normalization values for the field.
`void`	`setStored(boolean value)`	Set to `true` to store this field.
`void`	`setStoreTermVectorOffsets(boolean value)`	Set to `true` to also store token character offsets into the term vector for this field.
`void`	`setStoreTermVectorPayloads(boolean value)`	Set to `true` to also store token payloads into the term vector for this field.
`void`	`setStoreTermVectorPositions(boolean value)`	Set to `true` to also store token positions into the term vector for this field.
`void`	`setStoreTermVectors(boolean value)`	Set to `true` if this field's indexed form should be also stored into term vectors.
`void`	`setTokenized(boolean value)`	Set to `true` to tokenize this field's contents via the configured `Analyzer`.
`boolean`	`stored()`	True if the field's value should be stored
`boolean`	`storeTermVectorOffsets()`	True if this field's token character offsets should also be stored into term vectors.
`boolean`	`storeTermVectorPayloads()`	True if this field's token payloads should also be stored into the term vectors.
`boolean`	`storeTermVectorPositions()`	True if this field's token positions should also be stored into the term vectors.
`boolean`	`storeTermVectors()`	True if this field's indexed form should be also stored into term vectors.
`boolean`	`tokenized()`	True if this field's value should be analyzed by the `Analyzer`.
`String`	`toString()`	Prints a Field for human consumption.

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

- Constructor Detail
  - FieldType
```
public FieldType(FieldType ref)
```
    Create a new mutable FieldType with all of the properties from ref
  - FieldType
```
public FieldType()
```
    Create a new FieldType with default properties.
- Method Detail
  - freeze
```
public void freeze()
```
    Prevents future changes. Note, it is recommended that this is called once the FieldTypes's properties have been set, to prevent unintentional state changes.
  - indexed
```
public boolean indexed()
```
    True if this field should be indexed (inverted)
    The default is false.
    
    Specified by:
    
    indexed in interface IndexableFieldType
    
    See Also:
    
    setIndexed(boolean)
  - setIndexed
```
public void setIndexed(boolean value)
```
    Set to true to index (invert) this field.
    
    Parameters:
    
    value - true if this field should be indexed.
    
    Throws:
    
    IllegalStateException - if this FieldType is frozen against future modifications.
    
    See Also:
    
    indexed()
  - stored
```
public boolean stored()
```
    True if the field's value should be stored
    The default is false.
    
    Specified by:
    
    stored in interface IndexableFieldType
    
    See Also:
    
    setStored(boolean)
  - setStored
```
public void setStored(boolean value)
```
    Set to true to store this field.
    
    Parameters:
    
    value - true if this field should be stored.
    
    Throws:
    
    IllegalStateException - if this FieldType is frozen against future modifications.
    
    See Also:
    
    stored()
  - tokenized
```
public boolean tokenized()
```
    True if this field's value should be analyzed by the Analyzer.
    This has no effect if IndexableFieldType.indexed() returns false.
    The default is true.
    
    Specified by:
    
    tokenized in interface IndexableFieldType
    
    See Also:
    
    setTokenized(boolean)
  - setTokenized
```
public void setTokenized(boolean value)
```
    Set to true to tokenize this field's contents via the configured Analyzer.
    
    Parameters:
    
    value - true if this field should be tokenized.
    
    Throws:
    
    IllegalStateException - if this FieldType is frozen against future modifications.
    
    See Also:
    
    tokenized()
  - storeTermVectors
```
public boolean storeTermVectors()
```
    True if this field's indexed form should be also stored into term vectors.
    This builds a miniature inverted-index for this field which can be accessed in a document-oriented way from IndexReader.getTermVector(int,String).
    This option is illegal if IndexableFieldType.indexed() returns false.
    The default is false.
    
    Specified by:
    
    storeTermVectors in interface IndexableFieldType
    
    See Also:
    
    setStoreTermVectors(boolean)
  - setStoreTermVectors
```
public void setStoreTermVectors(boolean value)
```
    Set to true if this field's indexed form should be also stored into term vectors.
    
    Parameters:
    
    value - true if this field should store term vectors.
    
    Throws:
    
    IllegalStateException - if this FieldType is frozen against future modifications.
    
    See Also:
    
    storeTermVectors()
  - storeTermVectorOffsets
```
public boolean storeTermVectorOffsets()
```
    True if this field's token character offsets should also be stored into term vectors.
    This option is illegal if term vectors are not enabled for the field (IndexableFieldType.storeTermVectors() is false)
    The default is false.
    
    Specified by:
    
    storeTermVectorOffsets in interface IndexableFieldType
    
    See Also:
    
    setStoreTermVectorOffsets(boolean)
  - setStoreTermVectorOffsets
```
public void setStoreTermVectorOffsets(boolean value)
```
    Set to true to also store token character offsets into the term vector for this field.
    
    Parameters:
    
    value - true if this field should store term vector offsets.
    
    Throws:
    
    IllegalStateException - if this FieldType is frozen against future modifications.
    
    See Also:
    
    storeTermVectorOffsets()
  - storeTermVectorPositions
```
public boolean storeTermVectorPositions()
```
    True if this field's token positions should also be stored into the term vectors.
    This option is illegal if term vectors are not enabled for the field (IndexableFieldType.storeTermVectors() is false).
    The default is false.
    
    Specified by:
    
    storeTermVectorPositions in interface IndexableFieldType
    
    See Also:
    
    setStoreTermVectorPositions(boolean)
  - setStoreTermVectorPositions
```
public void setStoreTermVectorPositions(boolean value)
```
    Set to true to also store token positions into the term vector for this field.
    
    Parameters:
    
    value - true if this field should store term vector positions.
    
    Throws:
    
    IllegalStateException - if this FieldType is frozen against future modifications.
    
    See Also:
    
    storeTermVectorPositions()
  - storeTermVectorPayloads
```
public boolean storeTermVectorPayloads()
```
    True if this field's token payloads should also be stored into the term vectors.
    This option is illegal if term vector positions are not enabled for the field (IndexableFieldType.storeTermVectors() is false).
    The default is false.
    
    Specified by:
    
    storeTermVectorPayloads in interface IndexableFieldType
    
    See Also:
    
    setStoreTermVectorPayloads(boolean)
  - setStoreTermVectorPayloads
```
public void setStoreTermVectorPayloads(boolean value)
```
    Set to true to also store token payloads into the term vector for this field.
    
    Parameters:
    
    value - true if this field should store term vector payloads.
    
    Throws:
    
    IllegalStateException - if this FieldType is frozen against future modifications.
    
    See Also:
    
    storeTermVectorPayloads()
  - omitNorms
```
public boolean omitNorms()
```
    True if normalization values should be omitted for the field.
    This saves memory, but at the expense of scoring quality (length normalization will be disabled), and if you omit norms, you cannot use index-time boosts.
    The default is false.
    
    Specified by:
    
    omitNorms in interface IndexableFieldType
    
    See Also:
    
    setOmitNorms(boolean)
  - setOmitNorms
```
public void setOmitNorms(boolean value)
```
    Set to true to omit normalization values for the field.
    
    Parameters:
    
    value - true if this field should omit norms.
    
    Throws:
    
    IllegalStateException - if this FieldType is frozen against future modifications.
    
    See Also:
    
    omitNorms()
  - indexOptions
```
public FieldInfo.IndexOptions indexOptions()
```
    FieldInfo.IndexOptions, describing what should be recorded into the inverted index
    The default is FieldInfo.IndexOptions.DOCS_AND_FREQS_AND_POSITIONS.
    
    Specified by:
    
    indexOptions in interface IndexableFieldType
    
    See Also:
    
    setIndexOptions(org.apache.lucene.index.FieldInfo.IndexOptions)
  - setIndexOptions
```
public void setIndexOptions(FieldInfo.IndexOptions value)
```
    Sets the indexing options for the field:
    
    Parameters:
    
    value - indexing options
    
    Throws:
    
    IllegalStateException - if this FieldType is frozen against future modifications.
    
    See Also:
    
    indexOptions()
  - setNumericType
```
public void setNumericType(FieldType.NumericType type)
```
    Specifies the field's numeric type.
    
    Parameters:
    
    type - numeric type, or null if the field has no numeric type.
    
    Throws:
    
    IllegalStateException - if this FieldType is frozen against future modifications.
    
    See Also:
    
    numericType()
  - numericType
```
public FieldType.NumericType numericType()
```
    NumericType: if non-null then the field's value will be indexed numerically so that NumericRangeQuery can be used at search time.
    The default is null (no numeric type)
    
    See Also:
    
    setNumericType(NumericType)
  - setNumericPrecisionStep
```
public void setNumericPrecisionStep(int precisionStep)
```
    Sets the numeric precision step for the field.
    
    Parameters:
    
    precisionStep - numeric precision step for the field
    
    Throws:
    
    IllegalArgumentException - if precisionStep is less than 1.
    
    IllegalStateException - if this FieldType is frozen against future modifications.
    
    See Also:
    
    numericPrecisionStep()
  - numericPrecisionStep
```
public int numericPrecisionStep()
```
    Precision step for numeric field.
    This has no effect if numericType() returns null.
    The default is NumericUtils.PRECISION_STEP_DEFAULT
    
    See Also:
    
    setNumericPrecisionStep(int)
  - toString
```
public final String toString()
```
    Prints a Field for human consumption.
    
    Overrides:
    
    toString in class Object
  - docValueType
```
public FieldInfo.DocValuesType docValueType()
```
    DocValues FieldInfo.DocValuesType: if non-null then the field's value will be indexed into docValues.
    The default is null (no docValues)
    
    Specified by:
    
    docValueType in interface IndexableFieldType
    
    See Also:
    
    setDocValueType(org.apache.lucene.index.FieldInfo.DocValuesType)
  - setDocValueType
```
public void setDocValueType(FieldInfo.DocValuesType type)
```
    Set's the field's DocValuesType
    
    Parameters:
    
    type - DocValues type, or null if no DocValues should be stored.
    
    Throws:
    
    IllegalStateException - if this FieldType is frozen against future modifications.
    
    See Also:
    
    docValueType()

Class FieldType

Nested Class Summary

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Constructor Detail

FieldType

FieldType

Method Detail

freeze

indexed

setIndexed

stored

setStored

tokenized

setTokenized

storeTermVectors

setStoreTermVectors

storeTermVectorOffsets

setStoreTermVectorOffsets

storeTermVectorPositions

setStoreTermVectorPositions

storeTermVectorPayloads

setStoreTermVectorPayloads

omitNorms

setOmitNorms

indexOptions

setIndexOptions

setNumericType

numericType

setNumericPrecisionStep

numericPrecisionStep

toString

docValueType

setDocValueType