package jas.hist.util;
import java.util.EventObject;
/**
* An event which is fired by a SliceAdapter when a new slice is added or removed
*/
public class SliceEvent extends EventObject
{
/**
* Creates a new object representing a hypertext link event.
*
* @param source the object responsible for the event
* @param type the event type
* @param u the affected URL
*/
public SliceEvent(Object source, EventType type, int index)
{
super(source);
this.type = type;
this.index = index;
}
/**
* Gets the type of event.
*
* @return the type
*/
public EventType getEventType()
{
return type;
}
/**
* Gets the index of the slice
*
* @return the index
*/
public int getIndex()
{
return index;
}
private int index;
private EventType type;
/**
* Defines the ENTERED, EXITED, and ACTIVATED event types, along
* with their string representations, returned by toString().
*/
public static final class EventType
{
private EventType(String s)
{
typeString = s;
}
/**
* Entered type.
*/
public static final EventType SLICEADDED = new EventType("SLICEADDED");
/**
* Exited type.
*/
public static final EventType SLICEREMOVED = new EventType("SLICEREMOVED");
/**
* Converts the type to a string.
*
* @return the string
*/
public String toString()
{
return typeString;
}
private String typeString;
}
}