org.eclipse.core.databinding.observable.value
Class SelectObservableValue

java.lang.Object
  

org.eclipse.core.databinding.observable.AbstractObservable
      

org.eclipse.core.databinding.observable.value.AbstractObservableValue
          
org.eclipse.core.databinding.observable.value.SelectObservableValue

All Implemented Interfaces:

IObservable, IObservableValue

public class SelectObservableValue
extends 
AbstractObservableValue

An observable value which behaves similarly to the <select> and <option> HTML tags. A SelectObservableValue has a number of options added to it via the addOption(Object, IObservableValue) method. The value of the SelectObservableValue is the value of whichever option's observable has a value of Boolean.TRUE, or null if none of the observable's values are Boolean.TRUE.

Since:

1.2

Restriction:

This class is not intended to be subclassed by clients.

Constructor Summary
SelectObservableValue ()           Constructs a SelectObservableValue on the default realm.
SelectObservableValue ( Object valueType)           Constructs a SelectObservableValue on the default realm, with the given value type.
SelectObservableValue ( Realm realm)           Constructs a SelectObservableValue on the specified realm.
SelectObservableValue ( Realm realm, Object valueType)           Constructs a SelectObservableValue on the given realm, with the given value type.

 

Method Summary
protected  void	addListener ( Object listenerType, IObservablesListener listener)
void	addOption ( Object value, IObservableValue observable)           Adds an option to this SelectObservableValue.
protected   Object	clone ()
protected   Object	doGetValue ()
protected  void	doSetValue ( Object value)           Template method for setting the value of the observable.
protected  void	fireEvent ( ObservableEvent event)
protected  void	firstListenerAdded ()
Realm	getRealm ()
Object	getValueType ()           The value type of this observable value, or null if this observable value is untyped.
protected  boolean	hasListeners ()
protected  void	lastListenerRemoved ()
protected  void	removeListener ( Object listenerType, IObservablesListener listener)

 

Methods inherited from class org.eclipse.core.databinding.observable.value. AbstractObservableValue
addValueChangeListener, fireChange, fireValueChange, getValue, isStale, removeValueChangeListener, setValue

 

Methods inherited from class org.eclipse.core.databinding.observable. AbstractObservable
addChangeListener, addDisposeListener, addStaleListener, checkRealm, dispose, fireStale, isDisposed, removeChangeListener, removeDisposeListener, removeStaleListener

 

Methods inherited from class java.lang. Object
equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

 

Methods inherited from interface org.eclipse.core.databinding.observable. IObservable
addChangeListener, addDisposeListener, addStaleListener, dispose, getRealm, isDisposed, removeChangeListener, removeDisposeListener, removeStaleListener

 

Constructor Detail

SelectObservableValue

public SelectObservableValue()

Constructs a SelectObservableValue on the default realm.

SelectObservableValue

public SelectObservableValue(
Realm realm)

Constructs a SelectObservableValue on the specified realm.

Parameters:

realm - the realm

SelectObservableValue

public SelectObservableValue(
Object valueType)

Constructs a SelectObservableValue on the default realm, with the given value type.

Parameters:

valueType - the value type

SelectObservableValue

public SelectObservableValue(
Realm realm,
                             
Object valueType)

Constructs a SelectObservableValue on the given realm, with the given value type.

Parameters:

realm - the realm

valueType - the value type

firstListenerAdded

protected void firstListenerAdded()

lastListenerRemoved

protected void lastListenerRemoved()

getValueType

public 
Object getValueType()

Description copied from interface: IObservableValue

The value type of this observable value, or null if this observable value is untyped.

Returns:

the value type, or null

public void addOption(
Object value,
                      
IObservableValue observable)

protected 
Object doGetValue()

protected void doSetValue(
Object value)

protected void addListener(
Object listenerType,
                           
IObservablesListener listener)

protected void removeListener(
Object listenerType,
                              
IObservablesListener listener)

protected boolean hasListeners()

protected void fireEvent(
ObservableEvent event)

public 
Realm getRealm()

protected 
Object clone()
                throws 
CloneNotSupportedException