另一种方法是创建转换器组件，该组件使用一种类型的行为并产生另一种类型的属性。
Another approach is to create a converter component, which is a component that consumes an action of one type and produces a property of another type.
转换器必须在这里将请求字符串转换为所需的对象类型，然后返回这个对象，将它存储在相应的JSF组件中。
This is where the converter must convert the request string value into the desired object type, and then return the object for storage in the corresponding JSF component.
SQLJ有三个组件；转换器、定制器和运行时环境。
The SQLJ has three components: a translator, customizer, and a run-time environment.
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