SessionListenerBridge.java 文件源码

@Override
public void attributeUpdated(final Session session, final String name, final Object value, final Object old) {
    if(name.startsWith(IO_UNDERTOW)) {
        return;
    }
    final HttpSessionImpl httpSession = SecurityActions.forSession(session, servletContext, false);
    if (old != value) {
        if (old instanceof HttpSessionBindingListener) {
            ((HttpSessionBindingListener) old).valueUnbound(new HttpSessionBindingEvent(httpSession, name, old));
        }
        applicationListeners.httpSessionAttributeReplaced(httpSession, name, old);
    }
    if (value instanceof HttpSessionBindingListener) {
        ((HttpSessionBindingListener) value).valueBound(new HttpSessionBindingEvent(httpSession, name, value));
    }
}