For using other security realms with the credential store, for example ones that use digital certificates, you need to implement the required callback handlers.

为了使用凭据库的其他安全领域(例如，使用数字证书的安全领域)，您需要实现所需的回调处理程序。

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In your model, a service not only identifies the provided interface, but may also identify required interfaces (such as callback interfaces).

在你的模型中，服务不仅识别提供的接口，而且识别需要的接口(例如回调接口)。

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This file provides an implementation of all the methods defined in the remote interface, in addition to methods required by the application server (for example, callback methods).

该文件提供在远程接口中定义的所有方法以及应用服务器所需的方法(例如回调方法)的实现。

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