SerialDataNode.java 文件源码

/** Create nodes for a given key.
 * @param key the key
 * @return child nodes for this key or null if there should be no
 *   nodes for this key
 */
protected Node[] createNodes(Object key) {
    Object ctx = bean;
    if (bean == null) return new Node[0];

    try {
        if (key instanceof BeanContextSupport) {
            BeanContextSupport bcs = (BeanContextSupport)key;

            if (((BeanContext) ctx).contains (bcs.getBeanContextPeer())) {
                // sometimes a BeanContextSupport occures in the list of
                // beans children even there is its peer. we think that
                // it is desirable to hide the context if the peer is
                // also present
                return new Node[0];
            }
        }

        return new Node[] { new BeanContextNode (key, task) };
    } catch (IntrospectionException ex) {
        // ignore the exception
        return new Node[0];
    }
}