blob: 288e018a3298df6d1c120758cca7355a0cce6b16 (
plain) (
blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
|
package tools.refinery.store.query.viatra.internal.update;
import org.eclipse.viatra.query.runtime.matchers.tuple.Tuples;
import tools.refinery.store.query.viatra.internal.ViatraModelQueryAdapterImpl;
import tools.refinery.store.query.view.TuplePreservingRelationView;
import tools.refinery.store.tuple.Tuple;
public class TuplePreservingRelationViewUpdateListener<T> extends RelationViewUpdateListener<T> {
private final TuplePreservingRelationView<T> view;
TuplePreservingRelationViewUpdateListener(ViatraModelQueryAdapterImpl adapter,
TuplePreservingRelationView<T> view) {
super(adapter);
this.view = view;
}
@Override
public void put(Tuple key, T fromValue, T toValue, boolean restoring) {
boolean fromPresent = view.filter(key, fromValue);
boolean toPresent = view.filter(key, toValue);
if (fromPresent == toPresent) {
return;
}
var translated = Tuples.flatTupleOf(view.forwardMap(key));
processUpdate(translated, toPresent);
}
}
|