Package org.eclipse.jface.resource

Class ResourceRegistry

java.lang.Object

org.eclipse.core.commands.common.EventManager

org.eclipse.jface.resource.ResourceRegistry

Direct Known Subclasses:

ColorRegistry, FontRegistry

public abstract class ResourceRegistry
extends EventManager

Abstract base class for various JFace registries.

Since:

3.0

Constructor Summary

Constructors

Constructor	Description
ResourceRegistry()

Method Summary

Modifier and Type	Method	Description
void	addListener(IPropertyChangeListener listener)	Adds a property change listener to this registry.
protected abstract void	clearCaches()	Disposes all currently allocated resources.
protected void	fireMappingChanged(String name, Object oldValue, Object newValue)	Fires a PropertyChangeEvent.
abstract Set<String>	getKeySet()
abstract boolean	hasValueFor(String key)	Return whether or not the receiver has a value for the supplied key.
void	removeListener(IPropertyChangeListener listener)	Removes the given listener from this registry.

Methods inherited from class org.eclipse.core.commands.common.EventManager

addListenerObject, clearListeners, getListeners, isListenerAttached, removeListenerObject

Methods inherited from class java.lang.Object

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

Constructor Details

ResourceRegistry

public ResourceRegistry()

Method Details

addListener

public void addListener(IPropertyChangeListener listener)

Adds a property change listener to this registry.

Parameters:

listener - a property change listener

clearCaches

protected abstract void clearCaches()

Disposes all currently allocated resources.

getKeySet

public abstract Set<String> getKeySet()

Returns:

the set of keys this manager knows about. This collection should be immutable.

hasValueFor

public abstract boolean hasValueFor(String key)

Return whether or not the receiver has a value for the supplied key.

Parameters:

key - the key

Returns:

true if there is a value for this key

fireMappingChanged

protected void fireMappingChanged(String name,
 Object oldValue,
 Object newValue)

Fires a PropertyChangeEvent.

Parameters:

name - the name of the symbolic value that is changing.

oldValue - the old value.

newValue - the new value.

removeListener

public void removeListener(IPropertyChangeListener listener)

Removes the given listener from this registry. Has no effect if the listener is not registered.

Parameters:

listener - a property change listener