Facultad De Informatica
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Detalles del recurso
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Facultad De Informatica
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| Id. |
42139286 |
| Idioma |
inglés
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| Titulo |
Facultad De Informatica |
| Autor(es) |
J. Correas,J. M. Gomez,M. Carro,D. Cabeza,M. Hermenegildo,J. Correas Et Al
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| Localización |
http://citeseer.ist.psu.edu/703750.html
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| Versión |
1.0 |
| Estado |
Final
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| Descripción |
This paper describes a model of persistence in (C)LP languages and two di#erent and practically
very useful ways to implement this model in current systems. The fundamental idea is that
persistence is a characteristic of certain dynamic predicates (i.e., those which encapsulate state).
The main e#ect of declaring a predicate persistent is that the dynamic changes made to such
predicates persist from one execution to the next one. After proposing a syntax for declaring
persistent predicates, a simple, file-based implementation of the concept is presented and some
examples shown. An additional implementation is proposed which stores persistent predicates
in an external database. The abstraction of the concept of persistence from its implementation
allows developing applications which can store their persistent predicates alternatively in files
or databases with only a few simple changes to a declaration stating the location and modality
used for persistent storage. The paper presents the model, the implementation approach in both
the cases of using files and relational databases, a number of optimizations of the process (using
information obtained from static global analysis and goal clustering), and performance results
from an implementation of these ideas.
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| Tipo |
pdf
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| Palabras clave |
J. Correas,J. M. Gomez,M. Carro,D. Cabeza,M. Hermenegildo,J. Correas Et Al Facultad De Informatica
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| Tipo de Interactividad |
Expositivo
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| Nivel de Interactividad |
muy bajo
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| Audiencia |
Estudiante
Profesor
Autor
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| Estructura |
Atomic |
| Coste |
no
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| Copyright |
sí
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unrestricted |
| Formatos |
pdf
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| Requerimientos técnicos |
Browser: Any
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| Relación |
[IsBasedOn] http://clip.dia.fi.upm.es/papers/persdb-tr1.pdf
[References] oai:CiteSeerPSU:365507
[References] oai:CiteSeerPSU:705122
[References] oai:CiteSeerPSU:82768
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| Fecha de contribución |
31-mar-2009 |
| Contacto |
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