if (changeSummary != null)
msgs = ((InternalEObject)changeSummary).eInverseRemove(this, EOPPOSITE_FEATURE_BASE - ModelPackageImpl.BASE_DATA_GRAPH_TYPE__CHANGE_SUMMARY, null, msgs);
if (newChangeSummary != null)
msgs = ((InternalEObject)newChangeSummary).eInverseAdd(this, EOPPOSITE_FEATURE_BASE - ModelPackageImpl.BASE_DATA_GRAPH_TYPE__CHANGE_SUMMARY, null, msgs);
msgs = basicSetChangeSummary(newChangeSummary, msgs);
if (msgs != null) msgs.dispatch();
}
else if (eNotificationRequired())
eNotify(new ENotificationImpl(this, Notification.SET, ModelPackageImpl.BASE_DATA_GRAPH_TYPE__CHANGE_SUMMARY, newChangeSummary, newChangeSummary));
}