public static Set<DeletionHook> getHooks(KnowledgeBase kb) {
DeletionHookFrameStore frameStore = getFrameStore(kb, false);
if (frameStore == null) {
return null;
} else {
return frameStore.getHooks();
}
}
public static void addDeletionHook(KnowledgeBase kb, DeletionHook hook) {
DeletionHookFrameStore frameStore = getFrameStore(kb, true);
frameStore.addHook(hook);
}
public static void removeDeletionHook(KnowledgeBase kb, DeletionHook hook) {
DeletionHookFrameStore frameStore = getFrameStore(kb, false);
if (frameStore != null) {
frameStore.removeHook(hook);
}
}