passivation feature 是什么?

lzjkevin

在读到 user guide 时, 看到有一句
Information about the forthcoming passivation feature is provided throughout the Developer's
Guide (including the coding standards) for preview/planning purposes only; passivation is not
supported in Release 12.

passivation feature 是什么? 能举个例子说明一下吗?

lzjkevin

在 OTN 上找到以下解释
http://forums.oracle.com/forums/thread.jspa?threadID=859349
The process of saving application state to a secondary medium (in the case of OA Framework,
database tables) is called passivation.

OR

The process of saving object state to a secondary medium. This is similar to Java I/O serialization, but passivation is a more generic concept. Serialization is one way to save data.

Consider a multi-page purchase order creation flow where the user describes the order in the first page, enters one or more line items in the second page, and reviews the order before submitting it in the third page. The purchase order data (its state) must remain intact between each of the browser requests for the transaction to be completed successfully.

NOTE:-->Set the Retention Level for root application modules only. Do not set it for nested application modules as their passivation behavior is determined by the root application module's configuration. For example, do not set this property for application modules associated with LOVs and attachment pages as these application modules are nested under the main page's root application module. However, because they are passivated with the root application module, nested application modules must observe all the state management coding standards.

Set each root application module's Retention Level to MANAGE_STATE.
Reason why---> This allows OA Framework to recover connections and memory under resource load, support session failover, and other pending features such as Save For Later and JVM failover.


还在消化中, 如果谁能帮我更好理解这个, 感激不尽

sumury

不要搞这个东西。

不是说了嘛。passivation is not supported in Release 12.

它的功能简单的说是为了在页面超时以后，再操作界面时，保持原来页面上的值和状态。

主要是为以后考虑的，就像老美考虑使用虫洞一样，不知道是以后什么时候的事情了。

lzjkevin

回复 sumury 的帖子


    嗯, 谢谢解释

lzjkevin

那请问一下, R12 这种需求如何实现呢?

lzjkevin

顶一下