/**
* Returns the old value from the {@link FeatureChange}s map for the <code>feature</code>, if it
* exists.
*/
@Override
public Object getValueFeatureValue(Object element, Object feature, Object correspondingValue) {
// first get the value from the FeatureChange, if it exists
FeatureChange change = getFeatureChange(element, feature);
if (change != null) {
return change.getOldValue();
}
return astCacheElementModelAdapter != null
? astCacheElementModelAdapter.getValueFeatureValue(element, feature, correspondingValue)
: super.getValueFeatureValue(element, feature, correspondingValue);
}
/**
* Filters out added {@link CodeSyncElement}s. Returns the new containment list from the {@link
* FeatureChange}s map for the <code>feature</code>, if it exists.
*/
@SuppressWarnings("unchecked")
@Override
public Iterable<?> getContainmentFeatureIterable(
Object element, Object feature, Iterable<?> correspondingIterable) {
// first get the children from the FeatureChange, if it exists
Iterable<?> result;
FeatureChange change = getFeatureChange(element, feature);
if (change != null) {
result = (Iterable<?>) change.getOldValue();
} else {
result =
astCacheElementModelAdapter != null
? astCacheElementModelAdapter.getContainmentFeatureIterable(
element, feature, correspondingIterable)
: super.getContainmentFeatureIterable(element, feature, correspondingIterable);
}
return new FilteredIterable<Object, Object>((Iterator<Object>) result.iterator()) {
protected boolean isAccepted(Object candidate) {
if (candidate instanceof CodeSyncElement && ((CodeSyncElement) candidate).isAdded())
return false;
return true;
}
};
}