javafx.beans.property.ReadOnlyListWrapper Maven / Gradle / Ivy
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* by Oracle in the LICENSE file that accompanied this code.
*
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
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* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
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package javafx.beans.property;
import javafx.collections.ObservableList;
import static javafx.collections.ListChangeListener.Change;
/**
* This class provides a convenient class to define read-only properties. It
* creates two properties that are synchronized. One property is read-only
* and can be passed to external users. The other property is read- and
* writable and should be used internally only.
*
* @param the list element type
* @since JavaFX 2.1
*/
public class ReadOnlyListWrapper extends SimpleListProperty {
private ReadOnlyPropertyImpl readOnlyProperty;
/**
* The constructor of {@code ReadOnlyListWrapper}
*/
public ReadOnlyListWrapper() {
}
/**
* The constructor of {@code ReadOnlyListWrapper}
*
* @param initialValue
* the initial value of the wrapped value
*/
public ReadOnlyListWrapper(ObservableList initialValue) {
super(initialValue);
}
/**
* The constructor of {@code ReadOnlyListWrapper}
*
* @param bean
* the bean of this {@code ReadOnlyListWrapper}
* @param name
* the name of this {@code ReadOnlyListWrapper}
*/
public ReadOnlyListWrapper(Object bean, String name) {
super(bean, name);
}
/**
* The constructor of {@code ReadOnlyListWrapper}
*
* @param bean
* the bean of this {@code ReadOnlyListWrapper}
* @param name
* the name of this {@code ReadOnlyListWrapper}
* @param initialValue
* the initial value of the wrapped value
*/
public ReadOnlyListWrapper(Object bean, String name,
ObservableList initialValue) {
super(bean, name, initialValue);
}
/**
* Returns the readonly property, that is synchronized with this
* {@code ReadOnlyListWrapper}.
*
* @return the readonly property
*/
public ReadOnlyListProperty getReadOnlyProperty() {
if (readOnlyProperty == null) {
readOnlyProperty = new ReadOnlyPropertyImpl();
}
return readOnlyProperty;
}
/**
* {@inheritDoc}
*/
@Override
protected void fireValueChangedEvent() {
super.fireValueChangedEvent();
if (readOnlyProperty != null) {
readOnlyProperty.fireValueChangedEvent();
}
}
/**
* {@inheritDoc}
*/
@Override
protected void fireValueChangedEvent(Change change) {
super.fireValueChangedEvent(change);
if (readOnlyProperty != null) {
change.reset();
readOnlyProperty.fireValueChangedEvent(change);
}
}
private class ReadOnlyPropertyImpl extends ReadOnlyListPropertyBase {
@Override
public ObservableList get() {
return ReadOnlyListWrapper.this.get();
}
@Override
public Object getBean() {
return ReadOnlyListWrapper.this.getBean();
}
@Override
public String getName() {
return ReadOnlyListWrapper.this.getName();
}
@Override
public ReadOnlyIntegerProperty sizeProperty() {
return ReadOnlyListWrapper.this.sizeProperty();
}
@Override
public ReadOnlyBooleanProperty emptyProperty() {
return ReadOnlyListWrapper.this.emptyProperty();
}
}
}