org.eigenbase.util.property
Class Property.TriggerList

java.lang.Object
  java.util.AbstractCollection<E>
      java.util.AbstractList<E>
          java.util.ArrayList
              org.eigenbase.util.property.Property.TriggerList

All Implemented Interfaces:

Serializable, Cloneable, Iterable, Collection, List, RandomAccess

Enclosing class:

Property

private static class Property.TriggerList
extends ArrayList

A trigger list a list of triggers associated with a given property.

A trigger list is associated with a property key, and contains zero or more Trigger objects.

Each Trigger is stored in a WeakReference so that when the Trigger is only reachable via weak references the Trigger will be be collected and the contents of the WeakReference will be set to null.

Field Summary

Fields inherited from class java.util.AbstractList

modCount

Constructor Summary

private

Property.TriggerList()

Method Summary

(package private) void	add(Trigger trigger) Adds a Trigger, wrapping it in a WeakReference.
private Trigger	convert(Object o) Converts a trigger or a weak reference to a trigger into a trigger.
(package private) void	execute(Property property, String value) Executes every Trigger in this Property.TriggerList, passing in the property key whose change was the casue.
(package private) void	remove(Trigger trigger) Removes the given Trigger.

Methods inherited from class java.util.ArrayList

add, add, addAll, addAll, clear, clone, contains, ensureCapacity, get, indexOf, isEmpty, lastIndexOf, remove, remove, removeRange, set, size, toArray, toArray, trimToSize

Methods inherited from class java.util.AbstractList

equals, hashCode, iterator, listIterator, listIterator, subList

Methods inherited from class java.util.AbstractCollection

containsAll, removeAll, retainAll, toString

Methods inherited from class java.lang.Object

finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface java.util.List

containsAll, equals, hashCode, iterator, listIterator, listIterator, removeAll, retainAll, subList

Constructor Detail

Property.TriggerList

private Property.TriggerList()

Method Detail

add

void add(Trigger trigger)

Adds a Trigger, wrapping it in a WeakReference.

Parameters:

trigger -

remove

void remove(Trigger trigger)

Removes the given Trigger.

In addition, removes any WeakReference that is empty.

Parameters:

trigger -

execute

void execute(Property property,
             String value)
       throws Trigger.VetoRT

Executes every Trigger in this Property.TriggerList, passing in the property key whose change was the casue.

In addition, removes any WeakReference that is empty.

Synchronizes on property while modifying the trigger list.

Parameters:

property - The property whose change caused this property to fire

Throws:

Trigger.VetoRT

convert

private Trigger convert(Object o)

Converts a trigger or a weak reference to a trigger into a trigger. The result may be null.