程序包 java.beans

类 IndexedPropertyChangeEvent

java.lang.Object

java.util.EventObject

java.beans.PropertyChangeEvent

java.beans.IndexedPropertyChangeEvent

所有已实现的接口:

Serializable

public class IndexedPropertyChangeEvent
extends PropertyChangeEvent

An "IndexedPropertyChange" event gets delivered whenever a component that conforms to the JavaBeans™ specification (a "bean") changes a bound indexed property. This class is an extension of PropertyChangeEvent but contains the index of the property that has changed.

Null values may be provided for the old and the new values if their true values are not known.

An event source may send a null object as the name to indicate that an arbitrary set of if its properties have changed. In this case the old and new values should also be null.

从以下版本开始:

1.5

另请参阅:

序列化表格

字段概要

从类继承的字段 java.util.EventObject

source

构造器概要

构造器

构造器	说明
IndexedPropertyChangeEvent(Object source, String propertyName, Object oldValue, Object newValue, int index)	Constructs a new IndexedPropertyChangeEvent object.

方法概要

限定符和类型	方法	说明
int	getIndex()	Gets the index of the property that was changed.

从类继承的方法 java.util.EventObject

getSource

从类继承的方法 java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

从类继承的方法 java.beans.PropertyChangeEvent

getNewValue, getOldValue, getPropagationId, getPropertyName, setPropagationId, toString

构造器详细资料

IndexedPropertyChangeEvent

public IndexedPropertyChangeEvent(Object source,
                                  String propertyName,
                                  Object oldValue,
                                  Object newValue,
                                  int index)

Constructs a new IndexedPropertyChangeEvent object.

参数:

source - The bean that fired the event.

propertyName - The programmatic name of the property that was changed.

oldValue - The old value of the property.

newValue - The new value of the property.

index - index of the property element that was changed.

方法详细资料

getIndex

public int getIndex()

Gets the index of the property that was changed.

返回:

The index specifying the property element that was changed.