org.dellroad.stuff.vaadin7

Class ReadOnlyProperty<V>

java.lang.Object

org.dellroad.stuff.vaadin7.ReadOnlyProperty<V>

Type Parameters:

V - the type of the property

All Implemented Interfaces:

Property<V>, Property.ReadOnlyStatusChangeNotifier, Property.ValueChangeNotifier, Serializable

Direct Known Subclasses:

SimpleItem.Property, SimpleProperty

public abstract class ReadOnlyProperty<V>
extends Object
implements Property<V>, Property.ValueChangeNotifier, Property.ReadOnlyStatusChangeNotifier

Support superclass for Propertys with read-only values. Provides a somewhat more space-efficient implementation than Vaadin's AbstractProperty, which is useful when there are many instances in memory.

See Also:

Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from interface com.vaadin.data.Property

Property.Editor, Property.ReadOnlyException, Property.ReadOnlyStatusChangeEvent, Property.ReadOnlyStatusChangeListener, Property.ReadOnlyStatusChangeNotifier, Property.Transactional<T>, Property.ValueChangeListener, Property.ValueChangeNotifier, Property.Viewer

Constructor Summary

Constructors

Constructor and Description
ReadOnlyProperty()

Method Summary

Modifier and Type	Method and Description
void	addListener(Property.ReadOnlyStatusChangeListener listener)
void	addListener(Property.ValueChangeListener listener)
void	addReadOnlyStatusChangeListener(Property.ReadOnlyStatusChangeListener listener)
void	addValueChangeListener(Property.ValueChangeListener listener)
protected void	fireValueChange() Issue a Property.ValueChangeEvent to all registered Property.ValueChangeListeners.
protected void	firstListenerAdded() Invoked when the first Property.ValueChangeListener has been added.
boolean	isReadOnly() Determine if this instance is read-only.
protected void	lastListenerRemoved() Invoked when the last Property.ValueChangeListener has been removed.
void	removeListener(Property.ReadOnlyStatusChangeListener listener)
void	removeListener(Property.ValueChangeListener listener)
void	removeReadOnlyStatusChangeListener(Property.ReadOnlyStatusChangeListener listener)
void	removeValueChangeListener(Property.ValueChangeListener listener)
void	setReadOnly(boolean readOnly) Change this instance's read-only setting.
void	setValue(V value) Change this instance's value.

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.vaadin.data.Property

getType, getValue

Constructor Detail

ReadOnlyProperty

public ReadOnlyProperty()

Method Detail

setValue

public void setValue(V value)

Change this instance's value.

The implementation in ReadOnlyProperty always throws Property.ReadOnlyException.

Specified by:

setValue in interface Property<V>

isReadOnly

public boolean isReadOnly()

Determine if this instance is read-only.

The implementation in ReadOnlyProperty always returns true.

Specified by:

isReadOnly in interface Property<V>

setReadOnly

public void setReadOnly(boolean readOnly)

Change this instance's read-only setting.

The implementation in ReadOnlyProperty throws UnsupportedOperationException if readOnly is false.

Specified by:

setReadOnly in interface Property<V>

fireValueChange

protected void fireValueChange()

Issue a Property.ValueChangeEvent to all registered Property.ValueChangeListeners.

firstListenerAdded

protected void firstListenerAdded()

Invoked when the first Property.ValueChangeListener has been added.

The implementation in ReadOnlyProperty does nothing.

lastListenerRemoved

protected void lastListenerRemoved()

Invoked when the last Property.ValueChangeListener has been removed.

The implementation in ReadOnlyProperty does nothing.

addValueChangeListener

public void addValueChangeListener(Property.ValueChangeListener listener)

Specified by:

addValueChangeListener in interface Property.ValueChangeNotifier

removeValueChangeListener

public void removeValueChangeListener(Property.ValueChangeListener listener)

Specified by:

removeValueChangeListener in interface Property.ValueChangeNotifier

addListener

public void addListener(Property.ValueChangeListener listener)

Specified by:

addListener in interface Property.ValueChangeNotifier

removeListener

public void removeListener(Property.ValueChangeListener listener)

Specified by:

removeListener in interface Property.ValueChangeNotifier

addReadOnlyStatusChangeListener

public void addReadOnlyStatusChangeListener(Property.ReadOnlyStatusChangeListener listener)

Specified by:

addReadOnlyStatusChangeListener in interface Property.ReadOnlyStatusChangeNotifier

removeReadOnlyStatusChangeListener

public void removeReadOnlyStatusChangeListener(Property.ReadOnlyStatusChangeListener listener)

Specified by:

removeReadOnlyStatusChangeListener in interface Property.ReadOnlyStatusChangeNotifier

addListener

public void addListener(Property.ReadOnlyStatusChangeListener listener)

Specified by:

addListener in interface Property.ReadOnlyStatusChangeNotifier

removeListener

public void removeListener(Property.ReadOnlyStatusChangeListener listener)

Specified by:

removeListener in interface Property.ReadOnlyStatusChangeNotifier