import org.simantics.db.AsyncReadGraph;
import org.simantics.db.procedure.AsyncListener;
-public class AsyncListenerAdapter<T> implements AsyncListener<T> {
+public abstract class AsyncListenerAdapter<T> implements AsyncListener<T> {
@Override
public void exception(AsyncReadGraph graph, Throwable t) {
}
@Override
- public boolean isDisposed() {
- return false;
- }
+ public abstract boolean isDisposed();
}