We do not have to specify transaction boundaries manually in this example.
在这个例子中，我们不会手动指定事务的边界。
Within its boundaries, specify which cloud service type the provider hosts and the consumers rents and subscribe, what threshold policies are applied, and how the security policy is applied.
在安全策略边界内，指定由提供商托管并由使用者租用和预订的云服务类型、应用的阈值策略以及应用安全策略的方式。
ActivitySession: it provides both a way to extend transaction boundaries beyond method invocation and to specify EJB activation and passivation by means of these new boundaries.
ActivitySession：它提供了一种扩展事务边界和通过这些新边界指定ejb的激活和钝化的方法。
ActivitySession: it provides both a way to extend transaction boundaries beyond method invocation and to specify EJB activation and passivation by means of these new boundaries.
ActivitySession：它提供了一种扩展事务边界和通过这些新边界指定ejb的激活和钝化的方法。
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