...ORF可以做这项工作,但是要定义和开发这些Web services所要做的工作却是很繁重的;特别是,它涉及创建定制数据访问定义扩展(DADX)文件,它们是很复杂的,而且不基于任何标准。
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文档访问定义扩展 DADX ; Document Access Definition Extension
为文档访问定义扩展 Document Access Definition Extension
称为文档访问定义扩展 Document Access Definition Extension
基本的解决方案是定义可以用静态编译的代码访问的基类或者接口,然后生成的类扩展这个基类或者实现这个接口。
The basic solution is to define a base class or interface that can be accessed by the statically compiled code, then extend that base class or implement that interface in the generated class.
重温WSDL规范,看一看允许哪一种扩展;如果用来为访问Web服务定义SOAP绑定,您也可以学习WSDL的扩展机制。
Go over the WSDL specification to see what kinds of extensions are allowed; you can also study how WSDL's extension mechanism if used to define a SOAP binding for accessing Web services.
如果该变量的使用扩展到多个活动,您可以将变量定义为工作流级,这样任意元素都能访问它。
If the use of that variable spans multiple activities, you define the variable at the workflow level so that any element can access it.
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