com.extjs.gxt.ui.client.widget
Class ComponentManager

java.lang.Object
  com.extjs.gxt.ui.client.event.BaseObservable
      com.extjs.gxt.ui.client.widget.ComponentManager

All Implemented Interfaces:

Observable

public class ComponentManager
extends BaseObservable

Provides a registry of all attached components. Only components currently part of the page (DOM) are part of the registry as all components register when attached, and unregister when detached.

    Collection components = ComponentManager.get().getAll();
    Component comp = ComponentManager.get().get("foo");
    for (Component c : components) {

    }
 

Events:

Register : ComponentManagerEvent(source, component)

Fires after the component is registered.

• source : this
• component : the registered component

Unregister : ComponentManagerEvent(source, component)

Fires after the component is unregistered.

• source : this
• component : the registered component

Method Summary

static ComponentManager	get() Returns the component manager instance.
<X extends Component> java.util.List<X>	get(java.lang.Class<?> clazz) Returns all component by class.
Component	get(java.lang.String id) Returns a component by id.
java.util.Collection<Component>	getAll() Returns a collection of all registered components.
void	register(Component component)
void	unregister(Component component)

Methods inherited from class com.extjs.gxt.ui.client.event.BaseObservable

addListener, fireEvent, fireEvent, getFiresEvents, getListeners, hasActiveEvent, hasListeners, hasListeners, removeAllListeners, removeListener, setFiresEvents

Methods inherited from class java.lang.Object

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

Method Detail

get

public static ComponentManager get()

Returns the component manager instance.

Returns:

the component manager

get

public <X extends Component> java.util.List<X> get(java.lang.Class<?> clazz)

Returns all component by class.

Parameters:

clazz - the class to match

Returns:

the list of matching components

get

public Component get(java.lang.String id)

Returns a component by id.

Parameters:

id - the component id

Returns:

the component or null if no match

getAll

public java.util.Collection<Component> getAll()

Returns a collection of all registered components.

Returns:

the collection of components

register

public void register(Component component)

unregister

public void unregister(Component component)