BPM技術文檔7 | 溫室小花.技術.博客

8.1.1 OVS

介面：IWDOVSDialog、IWDOVSSuggester、IWDOVSController、IWDOVSProvider、IWDWindow、IWDExternalControllerInterface、IWDComponentUsage

可將context中的屬性的數據類型直接設置為某個JAVA類，如在context中創建一個dialog的屬性，並將該屬性的數據類型設為com.sap.tc.webdynpro.progmodel.api.IWDOVSDialog，表示該屬性可實現對話框的打開、關閉等操作。

其中IWDOVSController傳遞給IWDOVSDialog、IWDOVSSuggester，用於控制dialog與web dynpor的數據通訊

IWDOVSProvider Web Dynpro uses this interface to get a component handling the OVS. Web Dynpro only needs the interface window of this component to supply the popup window

IWDExternalControllerInterface

Common Interface for all External Interfaces of Controllers. Important: All members in this interface MUST be prefixed with “wd” to avoid collisions with application code

IWDComponentUsage

API of component usages. A component usage provides access to the interfaces of an embedded component and manages the life cycle of an embedded component instance.