CA2312814A1 - Apparatus and method for allowing object-oriented programs created with different framework versions to communicate - Google Patents

Apparatus and method for allowing object-oriented programs created with different framework versions to communicate Download PDF

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Publication number
CA2312814A1
CA2312814A1 CA002312814A CA2312814A CA2312814A1 CA 2312814 A1 CA2312814 A1 CA 2312814A1 CA 002312814 A CA002312814 A CA 002312814A CA 2312814 A CA2312814 A CA 2312814A CA 2312814 A1 CA2312814 A1 CA 2312814A1
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Canada
Prior art keywords
information
alternate
version
stream
class
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA002312814A
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French (fr)
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CA2312814C (en
Inventor
Marc Jablonski
Mark Davis
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Apple Inc
Original Assignee
Object Technology Licensing Corporation
Marc Jablonski
Mark Davis
Apple Inc.
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Application filed by Object Technology Licensing Corporation, Marc Jablonski, Mark Davis, Apple Inc. filed Critical Object Technology Licensing Corporation
Publication of CA2312814A1 publication Critical patent/CA2312814A1/en
Application granted granted Critical
Publication of CA2312814C publication Critical patent/CA2312814C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F9/00—Arrangements for program control, e.g. control units
    • G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
    • G06F9/46—Multiprogramming arrangements
    • G06F9/54—Interprogram communication
    • G06F9/541—Interprogram communication via adapters, e.g. between incompatible applications
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F9/00—Arrangements for program control, e.g. control units
    • G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
    • G06F9/44—Arrangements for executing specific programs
    • G06F9/448—Execution paradigms, e.g. implementations of programming paradigms
    • G06F9/4488—Object-oriented
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S707/00—Data processing: database and file management or data structures
    • Y10S707/99951—File or database maintenance
    • Y10S707/99952—Coherency, e.g. same view to multiple users
    • Y10S707/99953—Recoverability
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S707/00—Data processing: database and file management or data structures
    • Y10S707/99951—File or database maintenance
    • Y10S707/99952—Coherency, e.g. same view to multiple users
    • Y10S707/99954—Version management

Abstract

A set of stream writer and reader class and methods enable object frameworks to communicate with each other despite problems with missing classes due to mismatched versions. The stream writers are modified to deal with a new version of a class that extends from a class in an existing version by writing alternate object information compatible with the existing version when the future object class information is streamed. In this manner, alternate object information is written for each older version. The information for each of the alternate objects corresponding to each oder version is added after the existing object information as an extension with the length of the extension written at the beginning. The stream readers are modified so that when an older version stream reader reads the object information and does not understand the first alternate object (which might correspond to a later version), it skips the length specified for that extension and reads the second alternate object. If the second alternate object information is not understood, the reader skips the non-understood object information and continues with each alternate object. If none of the alternates is understood, then an exception is thrown. In one embodiment, the information for alternate objects which are not used is not discarded, but is instead saved in a temporary storage. Then, if the object is streamed out again, the stored information is added back into the stream.
CA002312814A 1997-12-08 1998-12-08 Apparatus and method for allowing object-oriented programs created with different framework versions to communicate Expired - Lifetime CA2312814C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US08/986,996 1997-12-08
US08/986,996 US6272521B1 (en) 1997-12-08 1997-12-08 Apparatus and method for allowing object-oriented programs created with different framework versions to communicate
PCT/US1998/025993 WO1999030226A2 (en) 1997-12-08 1998-12-08 Apparatus and method for allowing object-oriented programs created with different framework versions to communicate

Publications (2)

Publication Number Publication Date
CA2312814A1 true CA2312814A1 (en) 1999-06-17
CA2312814C CA2312814C (en) 2005-06-28

Family

ID=25532971

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002312814A Expired - Lifetime CA2312814C (en) 1997-12-08 1998-12-08 Apparatus and method for allowing object-oriented programs created with different framework versions to communicate

Country Status (6)

Country Link
US (1) US6272521B1 (en)
EP (1) EP1038219B1 (en)
JP (1) JP2001526421A (en)
CA (1) CA2312814C (en)
DE (1) DE69802839T2 (en)
WO (1) WO1999030226A2 (en)

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US6628305B1 (en) * 1998-11-09 2003-09-30 International Business Machines Corporation Architecture and definition of an extensible, object-oriented graphical user interface framework for managing and administering heterogenous digital library datastores
US6477701B1 (en) * 1999-09-30 2002-11-05 Seiko Epson Corporation Version-adaptive serialization and deserialization of program objects in an object-oriented environment
US7016922B1 (en) * 2000-04-27 2006-03-21 Autodesk, Inc. Intelligent object versioning
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US9622058B1 (en) 2000-06-02 2017-04-11 Timothy G. Newman Apparatus, system, methods and network for communicating information associated with digital images
US6877162B1 (en) * 2000-07-31 2005-04-05 Hewlett-Packard Company Method and system for extendable class-based shared data-types
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US8694504B2 (en) * 2003-03-05 2014-04-08 Spore, Inc. Methods and systems for technology analysis and mapping
US7020666B2 (en) * 2003-03-07 2006-03-28 Microsoft Corporation System and method for unknown type serialization
US7404186B2 (en) * 2003-05-28 2008-07-22 Microsoft Corporation Signature serialization
US7386836B2 (en) * 2003-06-09 2008-06-10 International Business Machines Corporation Maintaining multiple valid concurrent serialized object versions
GB2409735A (en) * 2003-12-30 2005-07-06 Ibm Method and system for change management of interfaces in distributed computer systems
EP1634186A2 (en) * 2004-04-30 2006-03-15 Microsoft Corporation End-user application customization using rules
WO2005111850A2 (en) * 2004-04-30 2005-11-24 Microsoft Corporation End-user application customization using rules
US7912863B1 (en) 2004-07-30 2011-03-22 Microsoft Corporation Compositional lifting of operations over structural types
US7774376B1 (en) * 2004-07-30 2010-08-10 Microsoft Corporation Type-system extensions for object-oriented language based on coercive subtyping with restrictions
US7543002B2 (en) * 2004-12-02 2009-06-02 Bea Systems, Inc. Mechanism to load first version classes into a runtime environment running a second version of the class
US20060195411A1 (en) * 2005-02-28 2006-08-31 Microsoft Corporation End user data activation
US7996443B2 (en) * 2005-02-28 2011-08-09 Microsoft Corporation Schema grammar and compilation
DE102005009529A1 (en) * 2005-03-02 2006-09-07 Siemens Ag Method for data processing with integration of two frameworks via a generic block to communicate between the frameworks
US7756839B2 (en) * 2005-03-31 2010-07-13 Microsoft Corporation Version tolerant serialization
US7904881B2 (en) * 2006-07-26 2011-03-08 Intel Corporation Using a virtual stack for fast and composable stack cutting
US7801926B2 (en) 2006-11-22 2010-09-21 Microsoft Corporation Programmable logic and constraints for a dynamically typed storage system
US20100251212A1 (en) * 2009-03-30 2010-09-30 Microsoft Corporation Version Type Traversal
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Also Published As

Publication number Publication date
WO1999030226A2 (en) 1999-06-17
CA2312814C (en) 2005-06-28
EP1038219A2 (en) 2000-09-27
DE69802839D1 (en) 2002-01-17
WO1999030226A3 (en) 1999-07-22
EP1038219B1 (en) 2001-12-05
DE69802839T2 (en) 2002-08-01
US6272521B1 (en) 2001-08-07
JP2001526421A (en) 2001-12-18

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Effective date: 20181210