Column.Density (Lucene 10.5.1 core API)
Description: declaration: package: org.apache.lucene.document.column, class: Column, enum: Density

Package org.apache.lucene.document.column

# Enum Class Column.Density

java.lang.Object
java.lang.Enum<Column.Density>
org.apache.lucene.document.column.Column.Density

All Implemented Interfaces:
  `Serializable`, `Comparable<Column.Density>`, `Constable`

Enclosing class:
  `Column`

public static enum Column.Density extends Enum<Column.Density>
Whether a column has a value for every document in the batch. This is a contract the column asserts up-front so the indexing chain can pick the right code path without probing the data.

- ## Nested Class Summary

  ## Nested classes/interfaces inherited from class java.lang.Enum

  `Enum.EnumDesc<E extends Enum<E>>`

- ## Enum Constant Summary

  Enum Constants
  Enum Constant
  Description
  `DENSE`
  The column has a value for every batch-local doc-id in `[0, numDocs)`, in order.
  `SPARSE`
  The column may be missing values or have multiple values for some doc-ids.

- ## Method Summary

  Modifier and Type
  Method
  Description
  `static Column.Density`
  `valueOf(String name)`
  Returns the enum constant of this class with the specified name.
  `static Column.Density[]`
  `values()`
  Returns an array containing the constants of this enum class, in the order they are declared.

  ### Methods inherited from class java.lang.Enum

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

  ### Methods inherited from class java.lang.Object

  `getClass, notify, notifyAll, wait, wait, wait`

- ## Enum Constant Details

  - ### DENSE

    public static final Column.Density DENSE
    The column has a value for every batch-local doc-id in `[0, numDocs)`, in order.

  - ### SPARSE

    public static final Column.Density SPARSE
    The column may be missing values or have multiple values for some doc-ids.

- ## Method Details

  - ### values

    public static Column.Density[] values()
    Returns an array containing the constants of this enum class, in the order they are declared.
    Returns:
      an array containing the constants of this enum class, in the order they are declared

  - ### valueOf

    public static Column.Density valueOf(String name)
    Returns the enum constant of this class with the specified name. The string must match exactly an identifier used to declare an enum constant in this class. (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 class has no constant with the specified name
      `NullPointerException` - if the argument is null