例如，在窗体上放置按钮时，按钮的设计器就是确定该按钮的外观和行为的实体。
For example, when you drop a button on a form, the button's designer is the entity that determines the appearance and behavior of the button.
实体bean被设计成自包含组件，这些组件配置有部署描述符，无需更改任何代码就可以将它们部署到任何J2EE应用程序服务器。
Entity beans are designed to be self-contained components that are configured with a deployment descriptor and can be deployed into any J2EE application server without any code changes.
不过，您仍然能够通过添加基于实体数据模型的新对象数据源，然后将这些对象拖到设计器来创建数据绑定控件。
However, you can still create data-bound controls by adding a new object data source that is based on the Entity data Model, and then dragging those objects to the designer.
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