NETWORK OPERATING SYSTEM

• US 20090177734A1
• Filed: 09/29/2008
• Published: 07/09/2009
• Est. Priority Date: 09/28/2007
• Status: Active Grant

• Current Assignee: Xcerion AB
• Original Assignee: Xcerion AB
• Inventors: Arthursson, Daniel
• Granted Patent: US 8,620,863 B2
• Time in Patent Office: Days
• US Class Current: 709/203
• CPC Class Codes: G06F 8/65 Updates security arrangements therefor G06F21/57
• CPC Class Codes: G06F 9/455 Emulation; Interpretation; Software simulation, e.g. virtualisation or emulation of application or operating system execution engines
• CPC Class Codes: G06F 9/45504 Abstract machines for programme code execution, e.g. Java virtual machine [JVM], interpreters, emulators
• CPC Class Codes: G06F 9/45529 Embedded in an application, e.g. JavaScript in a Web browser
• CPC Class Codes: G06F 9/54 Interprogram communication
• CPC Class Codes: G06F 9/542 Event management; Broadcasting; Multicasting; Notifications
• CPC Class Codes: H04L 67/01 Protocols
• CPC Class Codes: H04L 67/02 based on web technology, e.g. hypertext transfer protocol [HTTP]
• CPC Class Codes: H04L 67/1095 Replication or mirroring of data, e.g. scheduling or transport for data synchronisation between network nodes
• CPC Class Codes: H04L 67/56 Provisioning of proxy services store-and-forward switching systems in data switching networks H04L12/54
• CPC Class Codes: H04L 67/568 Storing data temporarily at an intermediate stage, e.g. caching

Abstract

Generally described, the present invention is directed to a network operating system that provides more effective ways of leveraging the connectivity of computer networks. In one embodiment, an XML virtual machine is implemented that accepts high-level application code written in an XML programming language as input. Functionality is provided to interpret or translate the application code written in an XML programming language into code that is suitable for execution across computer platforms. Moreover, the XML virtual machine supports the Model View Controller (MVC) design paradigm that facilitates true data abstraction from applications to a common data model. Multi-instance applications, with each instance potentially supporting multiple views, may be created and executed.

Claims

1. A message server for providing clients notifications concerning subscribed objects, the message server comprising:

a processor;

a computer-readable storage medium having stored thereon;

at least one subscription list associated with a client; and

at least one message chain associated with a subscribed object, the at least one message chain comprising a reference to an object comprising a set of references to subscription lists containing the object; and

a computer-readable storage medium having computer-executable instructions stored thereon that, when executed by the processor, cause the message server to perform a method for providing clients notifications concerning subscribed objects, the method comprising;

receiving a notification that a subscribed object has been updated;

locating a message chain associated with the subscribed object; and

sending a notification to the client associated with each subscription list in the set of references to subscription lists in the message chain.