However, the mediation programming model provides a Service data Object (SDO) interface to all messages and a common API for accessing properties and metadata.
然而，中介程序模型提供一个所有消息的服务数据对象(Service Data Object,SDO)接口，以及访问这些不同种类消息属性和元数据的通用API。
Service Data Object (SDO): SDO complements SCA by providing a common way to access many different kinds of data
ServiceDataObject (SDO)：SDO提供了访问许多不同种类数据的公共方法，从而对SCA进行了补充。
Service Data Object (SDO): SDO complements SCA by providing a common way to access many different kinds of data
ServiceDataObject (SDO)：SDO提供了访问许多不同种类数据的公共方法，从而对SCA进行了补充。
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