| 摘要 |
Orders are processed within an Order Processing Environment which includes an Order Processing Container, Relationship Registry, and Factory Registry. The Order Processing Environment is extended by a Reference Resolvement Function Component. The RRFC provides the basic functionality for resolving References defined in the Order Document at runtime and make the referenced data available as a usual input parameter for the resources involved in the Order Processing. Each Task in the Order may contain Resource Property References and Resource Property Relationship References which are pointers to properties of resources. These references are resolved by the RRFC during the Order Processing before the Order Document is delegated from one resource to the next. When resolving a Reference, the value of the referenced Resource Property is determined and the Reference is replaced by this value so that it can be used by the resource having it defined in its Task section as a usual input parameter. Hence, by using References, resources are able to get access to the properties of other resources that participate in the Order Processing or are contained in the Resource Topology tree and use them as an input parameter for executing their own Task without having to know where the data is gathered from.
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