org.jfree.ui.action

Class DowngradeActionMap

java.lang.Object

org.jfree.ui.action.DowngradeActionMap

public class DowngradeActionMap
extends Object

An actionmap, which is JDK 1.2.2 compatible.

This implementation does not implement the ActionMap interface of JDK 1.3 or higher to maintain the compatibility with JDK 1.2 which does not know this interface.

The usage is still the same.

Author:

Thomas Morger

Constructor Summary

Constructors

Constructor and Description
DowngradeActionMap() Default Constructor.

Method Summary

Methods

Modifier and Type	Method and Description
Object[]	allKeys() Returns an array of the keys defined in this ActionMap and its parent.
void	clear() Removes all the mappings from this ActionMap.
Action	get(Object key) Returns the binding for key, messaging the parent ActionMap if the binding is not locally defined.
DowngradeActionMap	getParent() Returns this ActionMap's parent.
Object[]	keys() Returns the Action names that are bound in this ActionMap.
void	put(Object key, Action action) Adds a binding for key to action.
void	remove(Object key) Removes the binding for key from this ActionMap.
void	setParent(DowngradeActionMap map) Sets this ActionMap's parent.
int	size() Returns the number of bindings.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

DowngradeActionMap

public DowngradeActionMap()

Default Constructor. Creates a new empty map.

Method Detail

setParent

public void setParent(DowngradeActionMap map)

Sets this ActionMap's parent.

Parameters:

map - the ActionMap that is the parent of this one

getParent

public DowngradeActionMap getParent()

Returns this ActionMap's parent.

Returns:

the ActionMap that is the parent of this one, or null if this ActionMap has no parent

put

public void put(Object key,
       Action action)

Adds a binding for key to action. If action is null, this removes the current binding for key.

In most instances, key will be action.getValue(NAME).

Parameters:

key - the key for the action.

action - the action to be added.

get

public Action get(Object key)

Returns the binding for key, messaging the parent ActionMap if the binding is not locally defined.

Parameters:

key - the key to be queried.

Returns:

the action for this key, or null if there is no such action.

remove

public void remove(Object key)

Removes the binding for key from this ActionMap.

Parameters:

key - the key to be removed.

clear

public void clear()

Removes all the mappings from this ActionMap.

keys

public Object[] keys()

Returns the Action names that are bound in this ActionMap.

Returns:

the keys which are directly bound to this map.

size

public int size()

Returns the number of bindings.

Returns:

the number of entries in this map.

allKeys

public Object[] allKeys()

Returns an array of the keys defined in this ActionMap and its parent. This method differs from keys() in that this method includes the keys defined in the parent.

Returns:

all keys of this map and all parents.