net.israfil.foundation.valuemodel
Class ValueHolder<E>

java.lang.Object
  net.israfil.foundation.valuemodel.ValueHolder<E>

All Implemented Interfaces:

MutableValue<E>, Observable, Value<E>, Vetoable

public class ValueHolder<E>
extends java.lang.Object
implements MutableValue<E>

Author:

cgruber To change the template for this generated type comment go to Window>Preferences>Java>Code Generation>Code and Comments

Nested Class Summary

protected class	ValueHolder.CallbackObjectHolder
protected class	ValueHolder.ObserverHolder
protected class	ValueHolder.VetoerHolder

Constructor Summary

protected	ValueHolder()
	ValueHolder(E o)

Method Summary

void	addObservers(java.lang.String callback, java.lang.Object... observers) Add an observer to this object, with a callback method spec that will be invoked upon a data change.
void	addVetoers(java.lang.String callback, java.lang.Object... vetoers) Add one or more vetoers to this object, with a callback method spec that will be invoked upon a data change.
E	get()
void	removeObservers(java.lang.Object... observers) Remove observer from observable object.
void	removeVetoers(java.lang.Object... vetoers) Remove one or more vetoers from vetoable object.
void	set(E newValue)

Methods inherited from class java.lang.Object

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

Constructor Detail

ValueHolder

public ValueHolder(E o)

ValueHolder

protected ValueHolder()

Method Detail

get

public E get()

Specified by:

get in interface Value<E>

set

public void set(E newValue)

Specified by:

set in interface MutableValue<E>

addObservers

public void addObservers(java.lang.String callback,
                         java.lang.Object... observers)

Description copied from interface: Observable

Add an observer to this object, with a callback method spec that will be invoked upon a data change. The callback method should contain only one Object parameter which will be the sender when the callback is invoked.

Specified by:

addObservers in interface Observable

See Also:

org.israfil.maveric.Observable#addObserver(java.lang.Object, java.lang.String)

removeObservers

public void removeObservers(java.lang.Object... observers)

Description copied from interface: Observable

Remove observer from observable object.

Specified by:

removeObservers in interface Observable

See Also:

org.israfil.maveric.Observable#removeObserver(java.lang.Object)

addVetoers

public void addVetoers(java.lang.String callback,
                       java.lang.Object... vetoers)

Description copied from interface: Vetoable

Add one or more vetoers to this object, with a callback method spec that will be invoked upon a data change. The callback method should contain two parameters. The first is the notification source (the holder or whatever) and the new value. It also should return a boolean.

Specified by:

addVetoers in interface Vetoable

See Also:

org.israfil.maveric.Vetoable#addVetoer(java.lang.Object, java.lang.String)

removeVetoers

public void removeVetoers(java.lang.Object... vetoers)

Description copied from interface: Vetoable

Remove one or more vetoers from vetoable object.

Specified by:

removeVetoers in interface Vetoable

See Also:

org.israfil.maveric.Vetoable#removeVetoer(java.lang.Object)