sszuev commented on issue #2868:
URL: https://github.com/apache/jena/issues/2868#issuecomment-2536039961
@cdorn
Could you please provide a complete minimal example? I couldn't find the
`#deleteProperties()` method. Maybe this is some kind of extension external
method?
There are number of ways to delete triple\statement from a graph\model. The
`Model#remove()` method triggers corresponding event.
```java
public static void main(String[] args) {
var listener = new MCL();
var m =
OntModelFactory.createModel(OntSpecification.OWL2_DL_MEM_RDFS_INF);
m.register(listener);
var type = m.createOntClass("http://x";);
m.remove(type.getMainStatement());
Assertions.assertEquals(1, listener.added.size());
Assertions.assertEquals(1, listener.removed.size());
}
static class MCL extends ObjectListener {
private final List<Object> added = new ArrayList<>();
private final List<Object> removed = new ArrayList<>();
@Override
public void added(Object x) {
System.out.println("added: " + x);
added.add(x);
}
@Override
public void removed(Object x) {
System.out.println("removed: " + x);
removed.add(x);
}
}
```
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