javax.help.event
Class HelpHistoryModelEvent

java.lang.Object
  java.util.EventObject
      javax.help.event.HelpHistoryModelEvent

All Implemented Interfaces:

java.io.Serializable

public class HelpHistoryModelEvent

extends java.util.EventObject

Notifies interested parties that a change in a Help History Model source has occurred.

See Also:

Serialized Form

Field Summary

Fields inherited from class java.util.EventObject

source

Constructor Summary

HelpHistoryModelEvent(java.lang.Object source, boolean previous, boolean next)
Represents a history change

Method Summary

boolean	isNext() Returns if action "next" is allowed
boolean	isPrevious() Returns if action "previous" is allowed.

Methods inherited from class java.util.EventObject

getSource, toString

Methods inherited from class java.lang.Object

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

Constructor Detail

HelpHistoryModelEvent

public HelpHistoryModelEvent(java.lang.Object source,
                             boolean previous,
                             boolean next)

Represents a history change

Parameters:

source - The source for this event.

previous - If true a previous action is allowed.

next - If true a next action is allowed.

Throws:

java.lang.IllegalArgumentException - if source is null.

Method Detail

isPrevious

public boolean isPrevious()

Returns if action "previous" is allowed.

Returns:

True if action is allowed, false otherwise.

isNext

public boolean isNext()

Returns if action "next" is allowed

Returns:

True if action is allowed, false otherwise.