XMLStreamReader 接口基本上定义了基于指针的 API（虽然标记常量在其超类型 XMLStreamConstants 接口中定义）。

The XMLStreamReader interface essentially defines the cursor-based API (though the token constants are defined in its super-type, interface XMLStreamConstants).

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请注意，由于Click - to - Action完全基于HTML标记，因此可将其用于在门户页面上表示为标记的所有类型的组件之间的通信。

Note that click-to-action, because it is based on HTML markup only, can be used to communicate between all sorts of components that are represented as markup on a portal page.

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