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package javafx.beans.property;

import javafx.beans.InvalidationListener;
import javafx.beans.value.ChangeListener;

import com.sun.javafx.binding.ExpressionHelper;

Base class for all readonly properties wrapping an int. This class provides a default implementation to attach listener.
See Also:
Since:JavaFX 2.0
/** * Base class for all readonly properties wrapping an {@code int}. This class provides a default * implementation to attach listener. * * @see ReadOnlyIntegerProperty * @since JavaFX 2.0 */
public abstract class ReadOnlyIntegerPropertyBase extends ReadOnlyIntegerProperty { ExpressionHelper<Number> helper; @Override public void addListener(InvalidationListener listener) { helper = ExpressionHelper.addListener(helper, this, listener); } @Override public void removeListener(InvalidationListener listener) { helper = ExpressionHelper.removeListener(helper, listener); } @Override public void addListener(ChangeListener<? super Number> listener) { helper = ExpressionHelper.addListener(helper, this, listener); } @Override public void removeListener(ChangeListener<? super Number> listener) { helper = ExpressionHelper.removeListener(helper, listener); }
Sends notifications to all attached InvalidationListeners and ChangeListeners. This method needs to be called, if the value of this property changes.
/** * Sends notifications to all attached * {@link javafx.beans.InvalidationListener InvalidationListeners} and * {@link javafx.beans.value.ChangeListener ChangeListeners}. * * This method needs to be called, if the value of this property changes. */
protected void fireValueChangedEvent() { ExpressionHelper.fireValueChangedEvent(helper); } }