| New Data binding: Missing event deregistration? [message #296317] |
Tue, 20 December 2005 09:25  |
Eclipse User |
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Hello,
I am just studying the new and very promising data binding
library. In org.eclipse.jface.databinding.internal.NestedUpdatableValue
I stumbled across the c'tor:
public NestedUpdatableValue(IDataBindingContext databindingContext,
final IUpdatableValue outerUpdatableValue,
Object feature, Class featureType) {
this.databindingContext = databindingContext;
this.feature = feature;
this.featureType = featureType;
updateInnerUpdatableValue(outerUpdatableValue);
IChangeListener outerChangeListener = new IChangeListener() {
public void handleChange(ChangeEvent changeEvent) {
Object oldValue = getValue();
updateInnerUpdatableValue(outerUpdatableValue);
fireChangeEvent(ChangeEvent.CHANGE, oldValue, getValue());
}
};
outerUpdatableValue.addChangeListener(outerChangeListener);
}
which registers an IChangeListener on its argument outerUpdatableValue.
According to usual resource management rules, the class
NestedUpdatableValue should ensure that removeChangeListener is
correctly envoked, but I could not find any corresponding
deregistration. Is this a bug or just my ignorance?
Greetings from Bremen,
Daniel Krügler
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