javafx.beans.property.ReadOnlySetPropertyBase Maven / Gradle / Ivy
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package javafx.beans.property;
import com.sun.javafx.binding.SetExpressionHelper;
import javafx.beans.InvalidationListener;
import javafx.beans.value.ChangeListener;
import javafx.collections.ObservableSet;
import javafx.collections.SetChangeListener;
/**
* Base class for all readonly properties wrapping an {@link javafx.collections.ObservableSet}.
* This class provides a default implementation to attach listener.
*
* @see ReadOnlySetProperty
*
* @param the type of the {@code Set} elements
* @since JavaFX 2.1
*/
public abstract class ReadOnlySetPropertyBase extends ReadOnlySetProperty {
private SetExpressionHelper helper;
/**
* Creates a default {@code ReadOnlySetPropertyBase}.
*/
public ReadOnlySetPropertyBase() {
}
@Override
public void addListener(InvalidationListener listener) {
helper = SetExpressionHelper.addListener(helper, this, listener);
}
@Override
public void removeListener(InvalidationListener listener) {
helper = SetExpressionHelper.removeListener(helper, listener);
}
@Override
public void addListener(ChangeListener> listener) {
helper = SetExpressionHelper.addListener(helper, this, listener);
}
@Override
public void removeListener(ChangeListener> listener) {
helper = SetExpressionHelper.removeListener(helper, listener);
}
@Override
public void addListener(SetChangeListener listener) {
helper = SetExpressionHelper.addListener(helper, this, listener);
}
@Override
public void removeListener(SetChangeListener listener) {
helper = SetExpressionHelper.removeListener(helper, listener);
}
/**
* This method needs to be called if the reference to the
* {@link javafx.collections.ObservableSet} changes.
*
* It sends notifications to all attached
* {@link javafx.beans.InvalidationListener InvalidationListeners},
* {@link javafx.beans.value.ChangeListener ChangeListeners}, and
* {@link javafx.collections.SetChangeListener}.
*
* This method needs to be called, if the value of this property changes.
*/
protected void fireValueChangedEvent() {
SetExpressionHelper.fireValueChangedEvent(helper);
}
/**
* This method needs to be called if the content of the referenced
* {@link javafx.collections.ObservableSet} changes.
*
* Sends notifications to all attached
* {@link javafx.beans.InvalidationListener InvalidationListeners},
* {@link javafx.beans.value.ChangeListener ChangeListeners}, and
* {@link javafx.collections.SetChangeListener}.
*
* This method is called when the content of the list changes.
*
* @param change the change that needs to be propagated
*/
protected void fireValueChangedEvent(SetChangeListener.Change change) {
SetExpressionHelper.fireValueChangedEvent(helper, change);
}
}