public final class SwingPropertyChangeSupport extends PropertyChangeSupport
java.beans.PropertyChangeSupport
这个子类功能几乎相同。
唯一的区别是如果使用SwingPropertyChangeSupport(sourceBean, true)
它确保只有在事件分派线程上通知侦听器 。
Constructor and Description |
---|
SwingPropertyChangeSupport(Object sourceBean)
构造一个SwingPropertyChangeSupport对象。
|
SwingPropertyChangeSupport(Object sourceBean, boolean notifyOnEDT)
构造一个SwingPropertyChangeSupport对象。
|
Modifier and Type | Method and Description |
---|---|
void |
firePropertyChange(PropertyChangeEvent evt)
将属性更改事件触发到已注册的跟踪器,以跟踪所有属性的更新或具有指定名称的属性。
|
boolean |
isNotifyOnEDT()
返回
notifyOnEDT 属性。
|
addPropertyChangeListener, addPropertyChangeListener, fireIndexedPropertyChange, fireIndexedPropertyChange, fireIndexedPropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, getPropertyChangeListeners, getPropertyChangeListeners, hasListeners, removePropertyChangeListener, removePropertyChangeListener
public SwingPropertyChangeSupport(Object sourceBean)
sourceBean
- 要作为任何事件来源的bean。
NullPointerException
- 如果
sourceBean
是
null
public SwingPropertyChangeSupport(Object sourceBean, boolean notifyOnEDT)
sourceBean
- 要作为任何事件来源的bean
notifyOnEDT
- 是否仅在
事件调度线程上通知侦听
器
NullPointerException
- 如果
sourceBean
是
null
public void firePropertyChange(PropertyChangeEvent evt)
如果给定事件的旧值和新值相等且非空值,则不会触发事件。
如果isNotifyOnEDT()
是true
并调出了事件调度线程,这个实现使用SwingUtilities.invokeLater
发送事件分派线程上的通知。 这样可以确保监听者只能在事件发送线程中被通知。
firePropertyChange
在
PropertyChangeSupport
evt
- 要解雇的
PropertyChangeEvent
NullPointerException
- 如果
evt
是
null
public final boolean isNotifyOnEDT()
notifyOnEDT
属性。
notifyOnEDT
属性
SwingPropertyChangeSupport(Object sourceBean, boolean notifyOnEDT)
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