If the application's API layer is too fine-grained, you have to invoke both methods from the client layer.
如果应用程序的api层非常细粒度化，那么您需要调用客户机层中的两个方法。
2
This layer of services provides the ability to broker process execution through the aggregation of integration components to support coarse-grained business functions.
这一层的服务提供通过聚合集成组件支持粗粒度业务功能从而执行代理过程的能力。
3
Sometimes applications are written with a fine-grained API layer, requiring the client to make multiple calls to the API layer for a single logical unit of work (LUW).