Package org.zkoss.zk.ui.event.impl
Class EventQueueProviderImpl
- java.lang.Object
-
- org.zkoss.zk.ui.event.impl.EventQueueProviderImpl
-
- All Implemented Interfaces:
EventQueueProvider
- Direct Known Subclasses:
EventQueueProviderImpl
public class EventQueueProviderImpl extends java.lang.Object implements EventQueueProvider
A simple implementation ofEventQueueProvider
.- Since:
- 5.0.0
- Author:
- tomyeh
-
-
Field Summary
Fields Modifier and Type Field Description protected static java.lang.String
ATTR_EVENT_QUEUES
The attribute used to store the map of event queues.
-
Constructor Summary
Constructors Constructor Description EventQueueProviderImpl()
-
Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description <T extends Event>
EventQueue<T>lookup(java.lang.String name, java.lang.String scope, boolean autoCreate)
Returns the event queue with the specified name in the specified scope.<T extends Event>
EventQueue<T>lookup(java.lang.String name, Session sess, boolean autoCreate)
Returns the event queue with the specified name in the give session (i.e., the scope).<T extends Event>
EventQueue<T>lookup(java.lang.String name, WebApp wapp, boolean autoCreate)
Returns the event queue with the specified name in the give application (i.e., the scope).boolean
remove(java.lang.String name, java.lang.String scope)
Removes the event queue.boolean
remove(java.lang.String name, Session sess)
Removes the event queue of the specified session.boolean
remove(java.lang.String name, WebApp wapp)
Removes the event queue of the specified application.
-
-
-
Field Detail
-
ATTR_EVENT_QUEUES
protected static final java.lang.String ATTR_EVENT_QUEUES
The attribute used to store the map of event queues.- See Also:
- Constant Field Values
-
-
Method Detail
-
lookup
public <T extends Event> EventQueue<T> lookup(java.lang.String name, java.lang.String scope, boolean autoCreate)
Description copied from interface:EventQueueProvider
Returns the event queue with the specified name in the specified scope.Note:
- This method can be called only in an activated execution,
i.e.,
Executions.getCurrent()
not null. - By default,
EventQueueProviderImpl
is used. To customize it, refer toEventQueues
.
- Specified by:
lookup
in interfaceEventQueueProvider
- Parameters:
name
- the name of the event queue.scope
- the scope of the event queue. It must supportEventQueues.DESKTOP
andEventQueues.APPLICATION
. Developers might extend it to support other types of event queues.autoCreate
- whether to create the event queue if not found.- Returns:
- the event queue with the associated name, or null if not found and autoCreate is false
- This method can be called only in an activated execution,
i.e.,
-
lookup
public <T extends Event> EventQueue<T> lookup(java.lang.String name, Session sess, boolean autoCreate)
Description copied from interface:EventQueueProvider
Returns the event queue with the specified name in the give session (i.e., the scope).Unlike
EventQueueProvider.lookup(String, String, boolean)
, this method can be called without an activated execution.- Specified by:
lookup
in interfaceEventQueueProvider
sess
- the session that the event queue is located (i.e., the scope)
-
lookup
public <T extends Event> EventQueue<T> lookup(java.lang.String name, WebApp wapp, boolean autoCreate)
Description copied from interface:EventQueueProvider
Returns the event queue with the specified name in the give application (i.e., the scope).Unlike
EventQueueProvider.lookup(String, String, boolean)
, this method can be called without an activated execution.- Specified by:
lookup
in interfaceEventQueueProvider
wapp
- the Web application that the event queue is located (i.e., the scope)
-
remove
public boolean remove(java.lang.String name, java.lang.String scope)
Description copied from interface:EventQueueProvider
Removes the event queue.- Specified by:
remove
in interfaceEventQueueProvider
- Parameters:
name
- the name of the event queue.scope
- the scope of the event queue. It must supportEventQueues.DESKTOP
andEventQueues.APPLICATION
. Developers might extend it to support other types of event queues.- Returns:
- true if it is removed successfully
-
remove
public boolean remove(java.lang.String name, Session sess)
Description copied from interface:EventQueueProvider
Removes the event queue of the specified session.Unlike
EventQueueProvider.remove(String, String)
, this method can be called without an activated execution.- Specified by:
remove
in interfaceEventQueueProvider
- Parameters:
name
- the queue name.sess
- the session that the event queue is located (i.e., the session scope)- Returns:
- true if it is removed successfully
-
remove
public boolean remove(java.lang.String name, WebApp wapp)
Description copied from interface:EventQueueProvider
Removes the event queue of the specified application.Unlike
EventQueueProvider.remove(String, String)
, this method can be called without an activated execution.- Specified by:
remove
in interfaceEventQueueProvider
- Parameters:
name
- the queue name.wapp
- the Web application that the event queue is located (i.e., the application scope)- Returns:
- true if it is removed successfully
-
-