Dynamic configuration of a persistence provider

摘要

Provided are techniques for updating a physical data structure type. A persistence provider is updated with dynamic configuration data for the updated physical data structure type while an application is executing. The application that is executing is allowed to access the updated physical data structure type using the updated persistence provider to map an application level object type to the updated physical data structure type without restarting the application.

主权项

1. A method, comprising:
providing, using a processor of a computer, a persistence provider that maps application level object types defined under a persistence object model that an application processes with physical data structure types defined under a physical data model for a database; and while an application that includes the persistence provider continues to execute, dynamically updating the persistence provider at runtime to access a new object of an application level object type by:
adding, using a processor of a computer, a data element of a physical data structure type defined under the physical data model, wherein the physical data structure type is a type of a database object;obtaining dynamic configuration data that describes a structure of the added data element of the physical data structure type and that provides a mapping between the added data element of the physical data structure type and a new object of the application level object type defined under the persistence object model;in response to receiving a refresh event to update the persistence provider, updating the persistence provider with the dynamic configuration data for the added data element of the physical data structure type and with the mapping; andaccessing, with the application, the added data element of the physical data structure type using the updated persistence provider to map the new object of the application level object type to the added data element of the physical data structure type.