org.biojava.utils
Class IndexedChangeHub

java.lang.Object
  org.biojava.utils.IndexedChangeHub

All Implemented Interfaces:

ChangeHub

public abstract class IndexedChangeHub
extends Object
implements ChangeHub

implements Changeable support with a ChangeHub that stores ChangeListener by key.

Since:

1.3

Author:

Thomas Down (original implementation), David Huen (refactoring)

Nested Class Summary

protected class

IndexedChangeHub.ListenerMemento

Constructor Summary

IndexedChangeHub()

Method Summary

void	addListener(Object key, ChangeListener listener, ChangeType ct) add a ChangeListener associated with given key.
protected void	diddleQueue()
void	firePostChange(Object key, ChangeEvent cev) invoke the firePostChangeEvent on all ChangeListeners associated with a specific key.
void	firePreChange(Object key, ChangeEvent cev) invoke the firePreChangeEvent on all ChangeListeners associated with a specific key.
protected abstract boolean	isMyChangeEvent(ChangeEvent cev, IndexedChangeHub.ListenerMemento lm)
void	removeListener(Object key, ChangeListener listener, ChangeType ct) remove a ChangeListener associated with given key.

Methods inherited from class java.lang.Object

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

Constructor Detail

IndexedChangeHub

public IndexedChangeHub()

Method Detail

isMyChangeEvent

protected abstract boolean isMyChangeEvent(ChangeEvent cev,
                                           IndexedChangeHub.ListenerMemento lm)

addListener

public void addListener(Object key,
                        ChangeListener listener,
                        ChangeType ct)

Description copied from interface: ChangeHub

add a ChangeListener associated with given key.

Specified by:

addListener in interface ChangeHub

removeListener

public void removeListener(Object key,
                           ChangeListener listener,
                           ChangeType ct)

Description copied from interface: ChangeHub

remove a ChangeListener associated with given key.

Specified by:

removeListener in interface ChangeHub

firePreChange

public void firePreChange(Object key,
                          ChangeEvent cev)
                   throws ChangeVetoException

Description copied from interface: ChangeHub

invoke the firePreChangeEvent on all ChangeListeners associated with a specific key.

Specified by:

firePreChange in interface ChangeHub

Throws:

ChangeVetoException

firePostChange

public void firePostChange(Object key,
                           ChangeEvent cev)

Description copied from interface: ChangeHub

invoke the firePostChangeEvent on all ChangeListeners associated with a specific key.

Specified by:

firePostChange in interface ChangeHub

diddleQueue

protected void diddleQueue()