A string constant identifies the specific event, and you can have one or more constants in each event class.

一个字符串常量识别一个特定事件，一个事件类中可以有一个或多个常量。

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In the specific context of JCSP, an abstract class called Guard is provided, which must be subclassed by event objects that are competing for selection by a process.

在JCSP的特定上下文中，提供了一个叫作Guard的抽象类，竞争进程选择的事件必须继续它。

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As part of the one-time setup, provide an event handler subscribed to that specific type of CustomEvent on the WjcDispenser instance or class.

作为一次性设置的一部分，在WjcDispenser实例或类上提供一个订阅到特定类型的CustomEvent的事件处理程序。

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