PortletSessionImpl.java 文件源码

public Enumeration<String> getAttributeNames(int scope) {
    // Return all attribute names in the nested HttpSession object.
    if (scope == PortletSession.APPLICATION_SCOPE) {
        return httpSession.getAttributeNames();
    }
    // Return attribute names with the portlet-scoped prefix.
    Vector<String> portletScopedNames = new Vector<String>();
    for (Enumeration<String> en = httpSession.getAttributeNames();
    en.hasMoreElements(); ) {
        String name = en.nextElement();
        if (isInCurrentPortletScope(name)) {
            portletScopedNames.add(
                    PortletSessionUtil.decodeAttributeName(name));
        }
    }
    return portletScopedNames.elements();

}