AbstractScope.java 文件源码

@SuppressWarnings("unchecked")
protected Object _get(Map map, String name, ObjectFactory factory, boolean registerCb) {
    Object o = map.get(name);
    if(o == null) {
        o = factory.getObject();
        map.put(name, o);

        if(registerCb && defaultDestructionCallback != null) {
            try {
                Constructor c = defaultDestructionCallback.getConstructor(Scope.class,String.class);
                registerDestructionCallback(name, (Runnable) c.newInstance(this,name));
            } catch(Exception e) {
                log.error("Could not setup destruction callback: " + name, e);
            }
        }
    }
    return o;
}