会话虚包模式可用于已知的和未知的参与者。
The Session Facade pattern can be used with both known and unknown actors.
这种模式的参与者如图34.2所示(改自[alur])。
The participants of the pattern are shown in Figure 34.2 (adapted from [Alur]).
在此模式下，向所有参与者提供所有服务。
In this case, all the services are available to all the participants.
在此模式下，向所有参与者提供所有服务。
In this case, all the services are available to all the participants.
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