Providing Entity-Specific Local Services for Staging

When creating your data handlers, you must leverage your app’s local services to perform Staging-related tasks for its entities. When the Staging framework operates on entities (i.e., staged models), it often cannot manage important information from the entity’s local services alone; instead, you’re forced to reinvent basic functionality so the Staging framework can access it. This is caused by services not sharing a common ancestor (i.e., interface or base class).

The Staged Model Repository framework removes this barrier by linking an app’s staged model to a local service. This lets the Staging framework call a staged model repository independently based on the entity being processed. This gives you access to entity-specific methods tailored specifically for the staged model data you’re handling.

Figure 1: Staged Model Repositories provide a Staging-specific layer of functionality for your local services.

Figure 1: Staged Model Repositories provide a Staging-specific layer of functionality for your local services.

What kind of entity-specific methods are we talking about here? Your data handlers only expose a specific set of actions, like export and import methods. The Staged Model Repository framework provides CRUD operations for a specific staged model that are not exposed using local services.

The staged model repository does not avoid using your app’s local services. It only provides an additional layer that provides Staging-specific functionality. So how does this work? A brief Staging process is outlined below:

  • *StagedModelDataHandler de-serializes the provided LAR file’s XML into a model.
  • *StagedModelRepository updates the model based on the environment and business logic, providing entity-specific CRUD operations for Staging purposes (e.g., UUID manipulation).
  • Local services are called from the *StagedModelRepository and handles the remainder of the process.

Pretty cool, right? Read on to learn how to implement and use the Staged Model Repository framework in your app.

« Developing Staged Model Data HandlersImplementing the Staged Model Repository Framework »
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