public class IndexedPropertyChangeEvent
extends PropertyChangeEvent
| java.lang.Object | |||
| java.util.EventObject | |||
| java.beans.PropertyChangeEvent | |||
| java.beans.IndexedPropertyChangeEvent | |||
只要符合JavaBeansTM规范的组件（“bean”）更改绑定的索引属性，就会传递“IndexedPropertyChange”事件。 此类是PropertyChangeEvent的扩展，但包含已更改的属性的索引。
如果它们的真实值未知，则可以为旧值和新值提供空值。
事件源可能会发送一个空对象作为名称，以指示任意一组属性是否已更改。 在这种情况下，旧值和新值也应该为空。
Inherited fields |
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 From class java.util.EventObject
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Public constructors |
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IndexedPropertyChangeEvent(Object source, String propertyName, Object oldValue, Object newValue, int index) 构造一个新的 |
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公共方法(Public methods) |
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int |
getIndex() 获取已更改的属性的索引。 |
继承方法(Inherited methods) |
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From class java.beans.PropertyChangeEvent
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From class java.util.EventObject
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From class java.lang.Object
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IndexedPropertyChangeEvent (Object source, String propertyName, Object oldValue, Object newValue, int index)
构造一个新的 IndexedPropertyChangeEvent对象。
| 参数(Parameters) | |
|---|---|
source |
Object: The bean that fired the event. |
propertyName |
String: The programmatic name of the property that was changed. |
oldValue |
Object: The old value of the property. |
newValue |
Object: The new value of the property. |
index |
int: index of the property element that was changed. |
int getIndex ()
获取已更改的属性的索引。
| 返回(Returns) | |
|---|---|
int |
The index specifying the property element that was changed. |
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