Package org.apache.sis.xml

## Enum XLink.Type

- Object
- - Enum<XLink.Type>
  - - Type

- All Implemented Interfaces:
    `Serializable`, `Comparable<XLink​.Type>`
  Enclosing class:
    XLink

      public static enum XLink.Type
      extends Enum<XLink.Type>

  The type of a `xlink`. This type can be determined from the set of non-null attribute values in a `XLink` instance.
  Since:
    0.3
  See Also:
    `XLink​.getType()`

  Defined in the `sis-metadata` module

- - ### Enum Constant Summary

    Enum Constants
    Enum Constant | Description
    --- | ---
    `ARC` | A traversal rule between resources.
    `AUTO` | A special value for computing the type automatically from the `XLink` attributes.
    `EXTENDED` | An extended, possibly multi-resource, link.
    `LOCATOR` | A pointer to an external resource.
    `RESOURCE` | An internal resource.
    `SIMPLE` | A simple link.
    `TITLE` | A descriptive title for another linking element.

  - ### Method Summary

    All Methods Static Methods Concrete Methods
    Modifier and Type | Method | Description
    --- | --- | ---
    `static XLink.Type` | `valueOf​(String name)` | Returns the enum constant of this type with the specified name.
    `static XLink.Type[]` | `values()` | Returns an array containing the constants of this enum type, in the order they are declared.

    - ### Methods inherited from class Enum

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

    - ### Methods inherited from class Object

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

- - ### Enum Constant Detail

    - #### SIMPLE

          public static final XLink.Type SIMPLE

      A simple link. Allows the `href`, `role`, `arcrole`, `title`, `show` and `actuate` attributes, all of them being optional.

    - #### EXTENDED

          public static final XLink.Type EXTENDED

      An extended, possibly multi-resource, link. Allows the `role` and `title` attributes, all of them being optional.

    - #### LOCATOR

          public static final XLink.Type LOCATOR

      A pointer to an external resource. Allows the `href`, `role`, `title` and `label` attributes, where `href` is mandatory and all other are optional.

    - #### RESOURCE

          public static final XLink.Type RESOURCE

      An internal resource. Allows the `role`, `title` and `label` attributes, all of them being optional.

    - #### ARC

          public static final XLink.Type ARC

      A traversal rule between resources. Allows the `arcrole`, `title`, `show`, `actuate` `from` and `to` attributes, all of them being optional.

    - #### TITLE

          public static final XLink.Type TITLE

      A descriptive title for another linking element.

    - #### AUTO

          public static final XLink.Type AUTO

      A special value for computing the type automatically from the `XLink` attributes. After a call to `XLink​.setType(AUTO)`, any call to `XLink​.getType()` will infer the type from the non-null attributes as according the table documented in the `XLink` javadoc.

  - ### Method Detail

    - #### values

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

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

    - #### valueOf

          public static XLink.Type 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