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Annual Hawaii International conference on System Sciences (HICSS)

作者： J. Kempf A. Paepcke B. Beach J. Mohan B. Mahbod A. Snyder Programming Languages Department Hewlett Packard Laboratories

A description is given of a prototype persistent-object system, called DOOM, (Data-oriented object Manager), which was designed to explore issues in language-level persistence for object-oriented application platforms. In its first iteration, the language aspects of persistence were investigated, and a design which allowed the exchange of persistent objects between Common objects (Common Lisp extension) and objective-C/sup 2/ (C extension) was implemented. The system features a tight coupling between the languages; run-time support and a relational storage manager. In a second iteration, the coupling between the database and the language was loosened, and more characteristics of the database were exposed to the applications programmer. The language extensions introduced into Commonobject and objective-C/sup 2/ to support persistence are discussed, and the architectures of DOOM-I and DOOM-II are described. Some persistent-object systems similar to DOOM that have appeared in the recent literature are briefly reviewed, and DOOM is examined in the light of two of the other systems.< >

关键词： object oriented programming object oriented databases programming profession Relational databases File systems Prototypes programming environments Libraries Computer languages Laboratories

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Instant Pickles: Generating object-oriented Pickler Combinators for Fast and Extensible Serialization

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ACM SIGPLAN NOTICES 2013年第10期48卷 183-201页

作者： Miller, Heather Haller, Philipp Burmako, Eugene Odersky, Martin Ecole Polytech Fed Lausanne Lausanne Switzerland Typesafe Inc San Francisco CA USA

As more applications migrate to the cloud, and as "big data" edges into even more production environments, the performance and simplicity of exchanging data between compute nodes/devices is increasing in importance. An issue central to distributed programming, yet often under-considered, is serialization or pickling, i.e., persisting runtime objects by converting them into a binary or text representation. Pickler combinators are a popular approach from functional programming;their composability alleviates some of the tedium of writing pickling code by hand, but they don't translate well to object-oriented programming due to qualities like open class hierarchies and subtyping polymorphism. Furthermore, both functional pickler combinators and popular, Java-based serialization frameworks tend to be tied to a specific pickle format, leaving programmers with no choice of how their data is persisted. In this paper, we present object-oriented pickler combinators and a framework for generating them at compile-time, called scala/pickling, designed to be the default serialization mechanism of the Scala programming language. The static generation of OO picklers enables significant performance improvements, outperforming Java and Kryo in most of our benchmarks. In addition to high performance and the need for little to no boilerplate, our framework is extensible: using the type class pattern, users can provide both (1) custom, easily interchangeable pickle formats and (2) custom picklers, to override the default behavior of the pickling framework. In benchmarks, we compare scala/pickling with other popular industrial frameworks, and present results on time, memory usage, and size when pickling/unpickling a number of data types used in real-world, large-scale distributed applications and frameworks.

关键词： Serialization pickling meta-programming distributed programming Scala

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Integrating abstract data types with object-oriented programming by specification-based approach

Integrating abstract data types with object-oriented program...

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International conference on Computer languages

作者： Y. Zhong S. Ishizuka R. Enari Fuji Xerox Information Systems Company Limited Shinjuku Tokyo Japan Fuji Xerox Inf. Syst. Co. Ltd. Tokyo Japan

The authors show that the integration of two popular automation-based paradigms, namely, ADT and OOP, can be used to achieve a high level of productivity and reliability. They introduce a system, Stim, (Small talk implementation for algebraic specification of abstract data types), that directly implements the algebraic specification of ADT on Smalltalk-80. Stim takes as an input a hierarchical algebraic specification and generates Smalltalk-80 classes automatically. The authors use an example of specifying a full-scale filing system to illustrate the power of the system.< >

关键词： object oriented programming Productivity Software systems Information systems Software prototyping Prototypes Embedded software Computer languages Software reliability Maintenance

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Transformation of data flow analysis models to object oriented design 88

Transformation of data flow analysis models to object orient...

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conference proceedings on object-oriented programming systems, languages and applications

作者： Bruno Alabiso Microsoft Corporation 1601 NE 36th Way Redmond WA

ISBN: (纸本)9780897912846

This paper describes a strategy to transform Data Flow Analysis into object oriented Design. This transformation is performed by extracting information from the Data Flow Model, by enriching with Design decision and by finally producing an object oriented Design Model. Semiformal transformation rules are described. Also a special notation is introduced to describe the object oriented Design Model. The Model used to represent Data Flow Analysis is the one originally proposed by Yourdon, complemented with Ward-Mellor's Real Time extensions (the “Essential Model”).

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4th International Working conference on Statistical and Scientific Database Management, SSDBM 1988

4th International Working Conference on Statistical and Scie...

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4th International Working conference on Statistical and Scientific Database Management, SSDBM 1988

ISBN: (纸本)9783540505754

The proceedings contain 26 papers. The special focus in this conference is on Statistical and Scientific Database Management. The topics include: The classification problem with semantically heterogeneous data;database issues for a veterinary medical expert system;ranges and trackers in statistical databases;a data model, knowledge base, and natural language processing for sharing a large statistical database;precision-time tradeoffs: A paradigm for processing statistical queries on databases;interpretation of statistical queries to relational databases;GQL, a graphical query language for semantic databases;a conceptual model for the representation of statistical data in geographical information systems;spatial data base queries: Relational algebra versus computational geometry;Statistical data management requirements and the SQL standards—an evolving comparison;design of the user-interface for an object-oriented statistical data-base;knowledge browsing — front ends to statistical databases;statistical relational model;a model of summary data and its applications in statistical databases;Database management systems for statistical and scientific applications: Are commercially available DBMS good enough?;geographical database systems and statistical information;the analysis of geographical data: Data rich, technology adequate, theory poor;the representation of a temporal data model in the relational environment;knowledge based support for the management of statistical databases;a study of modified interpolation search in compressed, fully transposed, ordered files;design of statistical information media: Time performances and storage constraints;handling time in query languages;software and hardware enhancement of arithmetic coding;orthogonal range retrieval using bucket address hashing.

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OOPs: an environment for implementing protocols

OOPs: an environment for implementing protocols

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Annual Hawaii International conference on System Sciences (HICSS)

作者： S. Hickman R. Dunning Southern Methodist University Dallas TX USA Garland Division E-Systems Inc. Garland TX USA

A flavor-based object-oriented programming system (OOPs) has been used to implement the Open systems Interconnection (OSI) Transport Protocol Class 1 (basic error recovery). Experiences with this approach, including simulations of the class 1 protocol, are reported. The methodology used to implement protocols using object-oriented programming is presented.< >

关键词： object oriented modeling object oriented programming Petri nets Computer languages Explosions Transport protocols Specification languages Data structures Art

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OOPS-an object oriented programming system with integrated data management facility

OOPS-an object oriented programming system with integrated d...

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International conference on Data Engineering

作者： G. Schlageter R. Unland W. Wilkes R. Zieschang G. Maul M. Nagl R. Meyer Department of Computer Science FernUniversität Hagen Hagen Germany ESW Triumph-Adler Nurnberg Germany Department of Computer Science RWTH Aachen University Aachen Germany

OOPS is an object-oriented programming environment with integrated data management facilities. It is designed to especially support advanced applications, like engineering and office applications. Rich data modeling facilities, including the concepts of classification, generalization, and aggregation are provided. Additionally, complex semantic integrity constraints, exception-handling mechanisms, and triggers can be specified. Since all these facilities are integrated into a single language, the artificial distinction between database language and programming language is no longer existent. The main features of the programming language and the architecture of OOPS are presented.< >

关键词： object oriented programming object oriented modeling Application software Database systems Computer languages Computer science Software systems Hidden Markov models Data models Environmental management

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C++ language support for guaranteed initialization, safe termination and error recovery in robotics

C++ language support for guaranteed initialization, safe ter...

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IEEE International conference on Robotics and Automation (ICRA)

作者： I.J. Cox AT&T Bell Labaratories

Software issues related to the reliability of robot systems are considered. It is shown how more reliable robot systems can be built using data abstraction and object-oriented programming, as supported within C++, a general-purpose programming language. It is also shown how the constructor mechanism associated with C++ classes can be used to guarantee initialization and self-test of each subsystem of the robot. A complementary destructor mechanism can be used to guarantee safe termination of subsystems under most conditions. These mechanisms are completely transparent to both the user and his application program. Exception handling is discussed and it is shown how object-oriented programming facilities can be used to provide transparent recovery from subsystem failures during program execution, given some hardware redundancy. Most of the examples have been demonstrated and tested using C++ running on an autonomous robot vehicle.< >

关键词： Intelligent robots Hardware object oriented programming Redundancy Remotely operated vehicles Mobile robots Service robots Robot sensing systems Intelligent manufacturing systems Computer languages

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Integrating an object-oriented programming system with a database system 88

Integrating an object-oriented programming system with a dat...

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conference proceedings on object-oriented programming systems, languages and applications

作者： Won Kim Nat Ballou Jay Banerjee Hong-Tai Chou Jorge G. Garza Darrell Woelk Microelectronics and Computer Technology Corporation 3500 West Balcones Center Drive Austin Texas Unisys Corporation P.O. Box 64942 M.S. WE-3C St. Paul MN

ISBN: (纸本)9780897912846

There are two major issues to address to achieve integration of an object-oriented programming system with a database system. One is the language issue: an object-oriented programming language must be augmented with semantic data modeling concepts to provide a robust set of data modeling concepts to allow modeling of entities for important real-world applications. Another is the computational-model issue: application programmers should be able to access and manipulate objects as though the objects are in an infinite virtual memory; in other words, they should not have to be aware of the existence of a database system in their computations with the data structures the programming language allows. This paper discusses these issues and presents the solutions which we have incorporated into the ORION object-oriented database system at MCC.

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A programming environment supporting reuse of object-oriented software

A programming environment supporting reuse of object-oriente...

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International conference on Software Engineering (ICSE)

作者： H. Tarumi K. Agusa Y. Ohno Department of Information Science Kyoto University Kyoto Japan

ISBN: (纸本)0897912586

The authors have developed a programming environment for object-oriented programming. This environment supports reuse of classes, especially retrieval of them with an expert system. The user can find classes and methods by describing the features of objects and operations according to an object model proposed. The target programming language is MOMO, which has been developed to implement the object model. A description is given of the retrieval part of the environment.< >

关键词： programming environments object oriented modeling programming profession object oriented programming Expert systems Software libraries Terminology Information science Computer languages User interfaces

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