拆分条件以字节数的形式在适配器中指定。
You specify the split criterion in the adapter as a number of bytes.
如果以前没有做过，那么现在可以这样做，此刻，资源适配器通常使用来自ActivationSpec的信息与后端系统建立某种形式的远程连接。
If it has not done so already, this is the point at which a resource adapter might typically make some form of remote connection to a back-end system using the information from the ActivationSpec.
资源适配器通常采用资源存档 (.rar) 文件的形式，需导入到 RAD 工作区。
The resource adapter, usually in the form of a resource archive (.rar) file is imported into the RAD workspace.
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