Question

I implemented a Hibernate interceptor (extends EmptyInterceptor) and implemented the onFlushDirty method in order to set an object’s property to null when that object is saved. The code looks like this:

public boolean onFlushDirty(...) {
// looking for the property index
int i = 0;
for (i=0; i<propertyNames.length; i++) {
  if ("someProperty".equals(propertyNames[i])) {
    break;
  }
}

// setting it to null
currentState[i] = null;

Unfortunatelly, the record is still saved to the database even though i nullified the object. Strangely, when i modify that object, the change is save to the db.

Both the object and the property are entities.

Answer 1

The problem was with the entity being saved to the db even before the interceptor was run. This is because it is an entity and needs to be saved before hibernate can reference it in another entity.