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| java.lang.Object
 javax.swing.ActionMap
All known Subclasses: javax.swing.plaf.ActionMapUIResource,
| ActionMap | | public class ActionMap implements Serializable(Code) | | ActionMap provides mappings from
Objects
(called keys or Action names)
to Actions.
An ActionMap is usually used with an InputMap
to locate a particular action
when a key is pressed. As with InputMap,
an ActionMap can have a parent
that is searched for keys not defined in the ActionMap.
As with InputMap if you create a cycle, eg:
ActionMap am = new ActionMap();
ActionMap bm = new ActionMap():
am.setParent(bm);
bm.setParent(am);
some of the methods will cause a StackOverflowError to be thrown.
See Also: InputMap
version:
1.21 05/05/07
author:
Scott Violet
since:
1.3 |
| Constructor Summary | |
| public | ActionMap()
Creates an ActionMap with no parent and no mappings. |
| Method Summary | |
| public Object[] | allKeys()
Returns an array of the keys defined in this ActionMap and
its parent. | | public void | clear()
Removes all the mappings from this ActionMap. | | public Action | get(Object key)
Returns the binding for key, messaging the
parent ActionMap if the binding is not locally defined. | | public ActionMap | getParent()
Returns this ActionMap's parent. | | public Object[] | keys()
Returns the Action names that are bound in this ActionMap. | | public void | put(Object key, Action action)
Adds a binding for key to action. | | public void | remove(Object key)
Removes the binding for key from this ActionMap. | | public void | setParent(ActionMap map)
Sets this ActionMap's parent. | | public int | size()
Returns the number of bindings in this
ActionMap . |
| ActionMap | | public ActionMap()(Code) | | Creates an ActionMap with no parent and no mappings.
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| allKeys | | public Object[] allKeys()(Code) | | 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.
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| clear | | public void clear()(Code) | | Removes all the mappings from this ActionMap.
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| get | | public Action get(Object key)(Code) | | Returns the binding for key, messaging the
parent ActionMap if the binding is not locally defined.
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| getParent | | public ActionMap getParent()(Code) | | Returns this ActionMap's parent.
the ActionMap that is the parent of this one,or null if this ActionMap has no parent |
| keys | | public Object[] keys()(Code) | | Returns the Action names that are bound in this ActionMap.
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| put | | public void put(Object key, Action action)(Code) | | 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).
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| remove | | public void remove(Object key)(Code) | | Removes the binding for key from this ActionMap.
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| setParent | | public void setParent(ActionMap map)(Code) | | Sets this ActionMap's parent.
Parameters:
map - the ActionMap that is the parent of this one |
| size | | public int size()(Code) | | Returns the number of bindings in this
ActionMap .
the number of bindings in this ActionMap |
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