摘要:
A system and method for synchronizing a database comprising raw data and metadata derived from the raw data, but when the metadata has not yet been updated. The raw data and the metadata are first synchronized, with the raw data having been assigned a version number. After synchronization, any stale metadata will be updated and assigned the same version number as the raw data.
摘要:
Various embodiments of the present invention are directed to systems and methods for synchronizing mixed elements (MEs) comprising structure data and unstructured filestreams between peer computer systems in a hardware/software interface system environment that does not permit snapshotting of large unstructured ME filestreams during synchronization. For several such embodiments, the method comprises synchronizing the ME in two steps, one for snapshotting the structured data component of the ME (as well as the cv of the filestream but not the filestream itself) and one for locking and transmitting the filestream to the receiving sync peer if and only if, after being locked, it is determined that the filestream is unchanged from the time of the ME data component snapshot.
摘要:
Various embodiments of the present invention are directed to conflict handling for conflicts that occur in a peer-to-peer synchronization system, where the ability to correctly and efficiently handle conflicts minimizes data loss while retaining good usability and reduces the need for user intervention during synchronization. Conflict handling in the synchronization service is divided into three stages: (1) conflict detection; (2) automatic conflict resolution and logging; and (3) conflict inspection and resolution. Certain embodiments are directed to a conflict handling schema comprising one or more of the follow conflict handling elements: (a) schematized representation of conflicts; (b) detection of conflicts; (c) logging of conflicts into a durable store; (d) automatic resolution of conflicts according to a flexible and configurable azqsxqxwdconflict resolution policy; (e) composable and extensible conflict handlers to filter and resolve conflicts; (f) automatic detection and removal of obsolete conflicts; and (g) programmatic conflict resolutions.
摘要:
Administering digital security is disclosed. Data and method items are stored on a computer system in a volume. The volume is divided up into non-overlapping security zones. Each item exists in a security zone. Security rules are granted to principals where the security rules apply to items in a particular zone. The security rules specify what principals have what rights; such as read, write delete and execute; to what items. Administrative rights can be delegated by principals by splitting a security zone to form two security zones. Principals who have administrative rights to the security zone assign additional principals to one of the security zones while maintaining all administrative rights to the other zone. Thus principals can retain certain administrative rights to certain items exclusively to themselves while delegating administrative rights to other items to other principals.
摘要:
Direction based pointing services are enabled for a portable electronic device including a positional component for receiving positional information as a function of a location of the portable electronic device, a directional component that outputs direction information as a function of an orientation of the portable electronic device and a location based engine that processes the positional information and the direction information to determine points of interest relative to the portable electronic device as a function of at least the positional information and the direction information. A set of scenarios with respect to movable endpoints of interest in the system emerge.
摘要:
Filtering trees for selectively notifying subscribers of events are provided, and are constructed with OR nodes to substantially reduce their size. The filtering trees have nodes representing event variables that ultimately branch to leaf nodes thereunder, and the leaf nodes identify which of a set of queries are satisfied by an actual event. A mechanism recursively merges nodes of trees into a single tree, and uses OR nodes when nodes cannot be combined, to essentially add a parallel path in the resulting tree to traverse. Nodes that can be combined are those that represent the same event variable, and may have data points that are merged into a combined node. Threshold gains in efficiency may be evaluated to determine whether the original trees should be kept instead of the resulting tree.
摘要:
Systems and methods for reporting the occurrence of events in a computer system to event subscriber software. A computer system includes an event-filtering component that receives notification of the occurrence of events, filters the events, and reports selected events to the subscriber software. The event-filtering component can expose standardized interfaces to the event providers that report events and to the subscriber software to which events are reported. Filtering can be facilitated by event-filtering definitions written in a query language and associated with the subscriber software. The definitions are processed in the context of an object-oriented, hierarchical classification of event classes that comprehend any possible events that can be reported by the event providers. When reported events satisfy one or more query-based filtering definitions, the events are passed to the appropriate subscriber software. Otherwise, the events are discarded. Events can be filtered and grouped according to the time of their occurrence. Filtering can be further simplified by registering event-reporting definitions defining the scope of events to be reported by particular event providers.
摘要:
Several embodiments of the present invention employ synchronization adapters for synchronizing information between “WinFS” and non-“WinFS” data sources. Examples of adapters include an adapter that synchronizes address book information between a “WinFS” contacts folder and a non-WinFS mailbox. In these instances, adapter developers might use the “WinFS” synchronization core services API described herein for accessing services provided by the “WinFS” synchronization platform in order to develop schema transformation code between the “WinFS” schema and the non-“WinFS” data source schema. Additionally, the adapter developer provides protocol support for communicating changes with the non-“WinFS” data source. A synchronization adapter is invoked and controlled by using the synchronization controller API and reports progress and errors using this API.
摘要:
Direction based pointing services are enabled for a portable electronic device including a positional component for receiving positional information as a function of a location of the portable electronic device, a directional component that outputs direction information as a function of an orientation of the portable electronic device and a location based engine that processes the positional information and the direction information to determine points of interest relative to the portable electronic device as a function of at least the positional information and the direction information. A set of scenarios with respect to non-movable endpoints of interest in the system emerge and these scenarios and other embodiments are described in more detail below.
摘要:
Various embodiments of the present invention are directed to conflict handling for conflicts that occur in a peer-to-peer synchronization system, where the ability to correctly and efficiently handle conflicts minimizes data loss while retaining good usability and reduces the need for user intervention during synchronization. Conflict handling in the synchronization service is divided into three stages: (1) conflict detection; (2) automatic conflict resolution and logging; and (3) conflict inspection and resolution. Certain embodiments are directed to a conflict handling schema comprising one or more of the follow conflict handling elements: (a) schematized representation of conflicts; (b) detection of conflicts; (c) logging of conflicts into a durable store; (d) automatic resolution of conflicts according to a flexible and configurable azqsxqxwdconflict resolution policy; (e) composable and extensible conflict handlers to filter and resolve conflicts; (f) automatic detection and removal of obsolete conflicts; and (g) programmatic conflict resolutions.