Keymap (Java SE 9 & JDK 9 )
Keywords: javax.swing.text.Keymap interface

Module java.desktop
Package javax.swing.text

## Interface Keymap

-     public interface Keymap

  A collection of bindings of KeyStrokes to actions. The bindings are basically name-value pairs that potentially resolve in a hierarchy.

- - ### Method Summary

    All Methods Instance Methods Abstract Methods
    Modifier and Type | Method | Description
    --- | --- | ---
    `void` | `addActionForKeyStroke​(KeyStroke key, Action a)` | Adds a binding to the keymap.
    `Action` | `getAction​(KeyStroke key)` | Fetches the action appropriate for the given symbolic event sequence.
    `Action[]` | `getBoundActions​()` | Fetches all of the actions defined in this keymap.
    `KeyStroke[]` | `getBoundKeyStrokes​()` | Fetches all of the keystrokes in this map that are bound to some action.
    `Action` | `getDefaultAction​()` | Fetches the default action to fire if a key is typed (i.e. a KEY_TYPED KeyEvent is received) and there is no binding for it.
    `KeyStroke[]` | `getKeyStrokesForAction​(Action a)` | Fetches the keystrokes that will result in the given action.
    `String` | `getName​()` | Fetches the name of the set of key-bindings.
    `Keymap` | `getResolveParent​()` | Fetches the parent keymap used to resolve key-bindings.
    `boolean` | `isLocallyDefined​(KeyStroke key)` | Determines if the given key sequence is locally defined.
    `void` | `removeBindings​()` | Removes all bindings from the keymap.
    `void` | `removeKeyStrokeBinding​(KeyStroke keys)` | Removes a binding from the keymap.
    `void` | `setDefaultAction​(Action a)` | Set the default action to fire if a key is typed.
    `void` | `setResolveParent​(Keymap parent)` | Sets the parent keymap, which will be used to resolve key-bindings.

- - ### Method Detail

    - #### getName

          String getName​()

      Fetches the name of the set of key-bindings.
      Returns:
        the name

    - #### getDefaultAction

          Action getDefaultAction​()

      Fetches the default action to fire if a key is typed (i.e. a KEY_TYPED KeyEvent is received) and there is no binding for it. Typically this would be some action that inserts text so that the keymap doesn't require an action for each possible key.
      Returns:
        the default action

    - #### setDefaultAction

          void setDefaultAction​(Action a)

      Set the default action to fire if a key is typed.
      Parameters:
        `a` - the action

    - #### getAction

          Action getAction​(KeyStroke key)

      Fetches the action appropriate for the given symbolic event sequence. This is used by JTextController to determine how to interpret key sequences. If the binding is not resolved locally, an attempt is made to resolve through the parent keymap, if one is set.
      Parameters:
        `key` - the key sequence
      Returns:
        the action associated with the key sequence if one is defined, otherwise `null`

    - #### getBoundKeyStrokes

          KeyStroke[] getBoundKeyStrokes​()

      Fetches all of the keystrokes in this map that are bound to some action.
      Returns:
        the list of keystrokes

    - #### getBoundActions

          Action[] getBoundActions​()

      Fetches all of the actions defined in this keymap.
      Returns:
        the list of actions

    - #### getKeyStrokesForAction

          KeyStroke[] getKeyStrokesForAction​(Action a)

      Fetches the keystrokes that will result in the given action.
      Parameters:
        `a` - the action
      Returns:
        the list of keystrokes

    - #### isLocallyDefined

          boolean isLocallyDefined​(KeyStroke key)

      Determines if the given key sequence is locally defined.
      Parameters:
        `key` - the key sequence
      Returns:
        true if the key sequence is locally defined else false

    - #### addActionForKeyStroke

          void addActionForKeyStroke​(KeyStroke key,
                                     Action a)

      Adds a binding to the keymap.
      Parameters:
        `key` - the key sequence
        `a` - the action

    - #### removeKeyStrokeBinding

          void removeKeyStrokeBinding​(KeyStroke keys)

      Removes a binding from the keymap.
      Parameters:
        `keys` - the key sequence

    - #### removeBindings

          void removeBindings​()

      Removes all bindings from the keymap.

    - #### getResolveParent

          Keymap getResolveParent​()

      Fetches the parent keymap used to resolve key-bindings.
      Returns:
        the keymap

    - #### setResolveParent

          void setResolveParent​(Keymap parent)

      Sets the parent keymap, which will be used to resolve key-bindings. The behavior is unspecified if a `Keymap` has itself as one of its resolve parents.
      Parameters:
        `parent` - the parent keymap