Package VASSAL.property

Interface PropertySupport

All Known Implementing Classes:

ConcurrentPropertySupport

public interface PropertySupport

An interface for handling PropertyListeners. PropertyContainers may delegate listener handling to instances of this class.

Since:

3.2.0

Author:

Joel Uckelman

Method Summary

Modifier and Type	Method	Description
<T> void	addPropertyListener(Property<T> prop, PropertyListener<? super T> listener)	Adds a listener for a specific Property.
void	addPropertyListener(PropertyListener<Object> listener)	Adds a listener for all changes.
<T> void	fireChanged(Object src, Property<T> prop, T oldVal, T newVal)	Notifies listeners of a property change.
List<PropertyListener<Object>>	getPropertyListeners()	Returns a list of PropertyListeners listening to all changes.
<T> List<PropertyListener<? super T>>	getPropertyListeners(Property<T> prop)	Returns a list of PropertyListeners listening to a given Property.
boolean	hasListeners()	Checks whether there are PropertyListeners for all changes.
<T> boolean	hasListeners(Property<T> prop)	Checks whether there are PropertyListeners for a given Property.
<T> void	removePropertyListener(Property<T> prop, PropertyListener<? super T> listener)	Removes a listener for a specific Property.
void	removePropertyListener(PropertyListener<Object> listener)	Removes a listener for all changes.

Method Details

addPropertyListener

void addPropertyListener(PropertyListener<Object> listener)

Adds a listener for all changes.

Parameters:

listener - the listener to add

removePropertyListener

void removePropertyListener(PropertyListener<Object> listener)

Removes a listener for all changes.

Parameters:

listener - the listener to remove

hasListeners

boolean hasListeners()

Checks whether there are PropertyListeners for all changes.

Returns:

true if there are listeners

getPropertyListeners

List<PropertyListener<Object>> getPropertyListeners()

Returns a list of PropertyListeners listening to all changes.

Returns:

a list of listeners

addPropertyListener

<T> void addPropertyListener(Property<T> prop,
 PropertyListener<? super T> listener)

Adds a listener for a specific Property.

Parameters:

prop - the Property to listen on

listener - the listener to add

removePropertyListener

<T> void removePropertyListener(Property<T> prop,
 PropertyListener<? super T> listener)

Removes a listener for a specific Property.

Parameters:

prop - the Property listened on

listener - the listener to remove

getPropertyListeners

<T> List<PropertyListener<? super T>> getPropertyListeners(Property<T> prop)

Returns a list of PropertyListeners listening to a given Property.

Parameters:

prop - the Property listened on

Returns:

a list of listeners

hasListeners

<T> boolean hasListeners(Property<T> prop)

Checks whether there are PropertyListeners for a given Property.

Returns:

true if there are listeners for the given property

fireChanged

<T> void fireChanged(Object src,
 Property<T> prop,
 T oldVal,
 T newVal)

Notifies listeners of a property change.

Parameters:

src - the source of the change

prop - the changed Property

oldVal - the old value of the Property

newVal - the new value of the Property