The transaction package contains all of the transaction management classes, including the four classes that represent the core transaction processing.

Transaction包中包含所有事务管理类，包括四个表示核心事务处理的类。

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The workload management administrator then maps transaction classes to service classes by creating definitions in workload management, which are used to assign the priority of the request.

然后，工作负荷管理的管理员通过在工作负荷管理中创建定义来将事务类映射到服务类，其适用于分配请求的优先级。

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The middleware is divided into some classes, such as database, remote procedure call (RPC), oriented message, object request agent, transaction processing management (TPM) or special PM.

中间件分数据库、远程过程调用、面向消息、对象请求代理、事务处理管程(TPM)或专用(PM)等类。

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