public void addAEExtension(AEExtension ext) {
Class<? extends AEExtension> clazz = ext.getClass();
if (extensions.containsKey(clazz))
throw new IllegalStateException("already contains AE Extension:" + clazz);
ext.setApplicationEntity(this);
extensions.put(clazz, ext);
}
public boolean removeAEExtension(AEExtension ext) {
if (extensions.remove(ext.getClass()) == null) return false;
ext.setApplicationEntity(null);
return true;
}
