| 摘要 |
One embodiment of the present invention provides a system for updating a content piece and delivering the updated content piece over a network. During operation, the system updates the content piece which corresponds to a original manifest and a set of objects referenced by the original manifest, and generates an update manifest for the updated content piece. The update manifest includes a reference to the original manifest and a reference to a set of update objects, and the set of update objects indicates differences between the content piece and the updated content piece. The system then publishes the update manifest and the set of update objects, thereby facilitating a requester for the updated content piece to retrieve the update manifest and the set of update manifest and to construct the updated content piece using the update manifest and the set of update objects. |
