org.apache.lucene.index
Enum FieldInfo.DocValuesType

java.lang.Object
  java.lang.Enum<FieldInfo.DocValuesType>
      org.apache.lucene.index.FieldInfo.DocValuesType

All Implemented Interfaces:

Serializable, Comparable<FieldInfo.DocValuesType>

Enclosing class:

FieldInfo

public static enum FieldInfo.DocValuesType
extends Enum<FieldInfo.DocValuesType>

DocValues types. Note that DocValues is strongly typed, so a field cannot have different types across different documents.

Enum Constant Summary

BINARY
A per-document byte[].

NUMERIC
A per-document Number

SORTED
A pre-sorted byte[].

SORTED_SET
A pre-sorted Set<byte[]>.

Method Summary

static FieldInfo.DocValuesType	valueOf(String name) Returns the enum constant of this type with the specified name.
static FieldInfo.DocValuesType[]	values() Returns an array containing the constants of this enum type, in the order they are declared.

Methods inherited from class java.lang.Enum

clone, compareTo, equals, finalize, getDeclaringClass, hashCode, name, ordinal, toString, valueOf

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Enum Constant Detail

NUMERIC

public static final FieldInfo.DocValuesType NUMERIC

A per-document Number

BINARY

public static final FieldInfo.DocValuesType BINARY

A per-document byte[]. Values may be larger than 32766 bytes, but different codecs may enforce their own limits.

SORTED

public static final FieldInfo.DocValuesType SORTED

A pre-sorted byte[]. Fields with this type only store distinct byte values and store an additional offset pointer per document to dereference the shared byte[]. The stored byte[] is presorted and allows access via document id, ordinal and by-value. Values must be <= 32766 bytes.

SORTED_SET

public static final FieldInfo.DocValuesType SORTED_SET

A pre-sorted Set<byte[]>. Fields with this type only store distinct byte values and store additional offset pointers per document to dereference the shared byte[]s. The stored byte[] is presorted and allows access via document id, ordinal and by-value. Values must be <= 32766 bytes.

Method Detail

values

public static FieldInfo.DocValuesType[] values()

Returns an array containing the constants of this enum type, in the order they are declared. This method may be used to iterate over the constants as follows:

for (FieldInfo.DocValuesType c : FieldInfo.DocValuesType.values())
    System.out.println(c);

Returns:

an array containing the constants of this enum type, in the order they are declared

valueOf

public static FieldInfo.DocValuesType valueOf(String name)

Returns the enum constant of this type with the specified name. The string must match exactly an identifier used to declare an enum constant in this type. (Extraneous whitespace characters are not permitted.)

Parameters:

name - the name of the enum constant to be returned.

Returns:

the enum constant with the specified name

Throws:

IllegalArgumentException - if this enum type has no constant with the specified name

NullPointerException - if the argument is null