public void componentChanged(AdvancedChangeEvent event) {
for (FormalDefinitionComponent comp : this.getComponents()) {
if (!event.comesFrom(comp.getClass())) continue;
if (comp instanceof Alphabet) {
switch (event.getType()) {
case ITEM_REMOVED:
this.purgeOfSymbols((Alphabet) comp, (Collection<Symbol>) event.getArg(0));
return;
case ITEM_MODIFIED:
Symbol from = (Symbol) event.getArg(0);
Symbol to = (Symbol) event.getArg(1);
applySymbolMod(from.getString(), to.getString());
}
}
if (comp instanceof UsesSymbols) {
updateAlphabets(event.getType());
return;
}
}
}
public <T extends FormalDefinitionComponent> T getComponentOfClass(Class<T> clz) {
for (FormalDefinitionComponent comp : this.getComponents()) {
if (clz.isAssignableFrom(comp.getClass())) return clz.cast(comp);
}
return null;
}