# Enum Class A2AMetadata.Key

java.lang.Object
java.lang.Enum<A2AMetadata.Key>
com.google.adk.a2a.common.A2AMetadata.Key

All Implemented Interfaces:
  `Serializable, Comparable<A2AMetadata.Key>, Constable`

Enclosing class:
  `A2AMetadata`

public static enum A2AMetadata.Key extends Enum<A2AMetadata.Key>
Enum for A2A custom metadata keys.

- ## Nested Class Summary

  ### Nested classes/interfaces inherited from class Enum

  `Enum.EnumDesc<E>`

- ## Enum Constant Summary

  Enum Constants
  Enum Constant
  Description
  `AGGREGATED`
  `REQUEST`
  `RESPONSE`

- ## Method Summary

  Modifier and Type
  Method
  Description
  `String`
  `getValue()`
  `static A2AMetadata.Key`
  `valueOf(String name)`
  Returns the enum constant of this class with the specified name.
  `static A2AMetadata.Key[]`
  `values()`
  Returns an array containing the constants of this enum class, in the order they are declared.

  ### Methods inherited from class Enum

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

  ### Methods inherited from class Object

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

- ## Enum Constant Details

  - ### REQUEST

    public static final A2AMetadata.Key REQUEST

  - ### RESPONSE

    public static final A2AMetadata.Key RESPONSE

  - ### AGGREGATED

    public static final A2AMetadata.Key AGGREGATED

- ## Method Details

  - ### values

    public static A2AMetadata.Key[] 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 A2AMetadata.Key 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

  - ### getValue

    public String getValue()