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## javax.jdo.annotations
Enum NullValue

    java.lang.Object
      java.lang.Enum<NullValue>
          javax.jdo.annotations.NullValue

All Implemented Interfaces:
  java.io.Serializable, java.lang.Comparable<NullValue>

    public enum NullValue

extends java.lang.Enum<NullValue>

Enumeration of the "null-value" behavior values. This corresponds to the "null-value" attribute of the "field" and "property" elements.

Since:
  2.1
Version:
  2.1

Enum Constant Summary
`DEFAULT`
`EXCEPTION`
`NONE`

Method Summary
`static NullValue` | `valueOf(java.lang.String name)` Returns the enum constant of this type with the specified name.
`static NullValue[]` | `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

### NONE

    public static final NullValue NONE

### EXCEPTION

    public static final NullValue EXCEPTION

### DEFAULT

    public static final NullValue DEFAULT

Method Detail

### values

    public static NullValue[] 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 (NullValue c : NullValue.values())
          System.out.println(c);

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

### valueOf

    public static NullValue valueOf(java.lang.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:
    `java.lang.IllegalArgumentException` - if this enum type has no constant with the specified name
    `java.lang.NullPointerException` - if the argument is null

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