/**
* Sets a value on a model object. If the feature is multi-valued, only the single value that
* the wrapper represents is set.
*/
protected void setValue(IResource object, IReference property, Object value) {
if (object.getApplicableCardinality(property).getSecond() != 1) {
@SuppressWarnings("unchecked")
List<Object> list = ((List<Object>) object.get(property));
list.set(index, value);
} else {
object.set(property, value);
}
}
/**
* Returns a value from a model object. If the feature is multi-valued, only the single value
* that the wrapper represents is returned.
*/
@Override
protected Object getValue(IResource object, IReference property) {
// When the value is changed, the property sheet page doesn't update
// the property sheet viewer input
// before refreshing, and this gets called on the obsolete wrapper.
// So, we need to read directly from the
// model object.
//
// return value;
Object result = object.get(property);
if (object.getApplicableCardinality(property).getSecond() != 1) {
// If the last object was deleted and the selection was in the
// property sheet view, the obsolete wrapper will
// reference past the end of the list.
//
List<?> list = (List<?>) result;
result = index >= 0 && index < list.size() ? list.get(index) : value;
}
return result;
}