R. Morrison, A.L. Brown, R.C.H. Connor, and A. Dearle. The Napier88 Reference Manual. Technical Report PPRR-77-89, Universities of Glasgow and St. Andrews, 1989. (p 98)  Home/Search   Document Not in Database   Summary   Related Articles   Check

....structured typed data. The architecture is primarily intended for a network file server, but many of its features are equally applicable to this work. 7. 4 Custom Storage Systems There are a number of applications such as persistent programming languages such as PS ALGOL [Atkinson83] or Napier88 [Morrison89], and Database Management Systems (DBMS) Date90] whose performance is highly dependent on disk I O, and which have disk access patterns which differ significantly from conventional or multimedia file access patterns. A true multi service operating system should equally well be able to support ....

R. Morrison, A.L. Brown, R.C.H. Connor, and A. Dearle. The Napier88 Reference Manual. Technical Report PPRR-77-89, Universities of Glasgow and St. Andrews, 1989. (p 98)

....has been used to construct the persistent programming system for Napier88 and is powerful enough to support languages with similar type systems. 2 1 Introduction In recent years a range of single programming language systems have been developed that are supported by a persistent store[atk82,atk83b,ros83,bro85,that86,bro89]. Examples of such systems include Argus[lis84] Galileo[alb85a] PS algol[psa88] and Smalltalk[gol83] Although each of these systems is based on a subtly different concept of persistence a common approach is to utilise a layered architecture. This paper presents the design of one such layered ....

....data from the potential side effects of both hard and soft failures. The techniques for recovering from hard failures range from taking complete dumps on removable media to maintaining multiple on line copies. These techniques are out with the scope of this paper and are discussed elsewhere[bro89]. For the purposes of this paper we shall only consider techniques that allow the simulation of stability with respect to soft failures. 7 2.3.1 Soft failures A soft failure may occur during a series of updates thereby preventing a logical operation from completing. As a result, the data held ....

Brown A.L. (Ph.D. Thesis) Persistent Object Stores. Universities of Glasgow and St.Andrews PPRR-71, Scotland, 1989.

....of programming languages [FiHa88] and so on. The term is usually associated with object oriented systems [CDRS86, MaSt86, HoZd87, WoKi87, KBC 87, VBD89] and with the family of persistent strongly typed programming languages such as DBPL [ScMa92, MRSS92] Galileo [ACO85] and Napier88 [MBCD89]. In these languages strong typing to a great extent forces a fixed format of data structures; unfixed formats are called bulk data and they present problems for these languages. Fixed formats of data structures have many advantages, in particular, they allow compact data representation and ....

R. Morrison, A.L. Brown, R. Connor, A. Dearle. The Napier88 Reference Manual. Universities of Glasgow and St.Andrews PPRR-77, 1989

....approach. The white box approach is in contrast to the black box approach adopted by some persistence systems. The black box approach hides or abstracts the persistent store away from programmers (Richardson Carey, 1989; Agrawal Gehani, 1990; Bancilhon, et al. 1988; Andrews Harris, 1987; Morrison, Baker, Connor, Dearle, 1989). In these systems programmers do not (need to) know the storage scheme in the persistent store. The white box approach adopted by pC helps programmers to understand the concepts of persistence. Novice pC programmers see that persistent object structures are object structures, previously ....

MORRISON R., BAKER C., CONNOR R.C.H., AND DEARLE A. (1989): The Napier88 Reference Manual, Technical Report PPRR-77-89, Universities of Glasgow and St.

....have to be changed in order to reflect the changing user needs. That is, schema evolution in traditional databases corresponds to class evolution in object oriented database systems, to type evolution in applications developed in strongly typed persistent programming languages (e.g. Napier88 [Morrison et al. 1989]) and, at a higher level, to changes to application models described in the framework of conceptual data models (e.g. the Entity Relationship Model [Chen 1976] The remainder of this introduction contains a more detailed description of the concept of schema evolution and its impact on the rest of ....

Morrison, R., Brown, F., Connor, R. and Dearle, A., The Napier88 Reference Manual, Universities of Glasgow and St. Andrews, PPRR-77-89, 1989.

....a layered architecture. This paper presents the design of one such layered architecture that can be used to support a persistent object store where the protection is enforced by a high level type system. The architecture has been used to construct the persistent programming system for Napier88[mor88] and is powerful enough to support languages with similar type systems, for example Galileo, Hope [per87] and Staple[mcn89] The architecture is able to support programming languages that utilise the concept of orthogonal persistence. Orthogonal persistence requires the persistence ....

Morrison R., Brown A.L., Connor R. & Dearle A. The Napier88 Reference Manual. Universities of Glasgow and St.Andrews PPRR-77, Scotland, 1989.

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A.L. Brown. (Ph.D. Thesis) Persistent Object Stores. Universities of Glasgow and St.Andrews. PPRR-71, Scotland, 1989

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