INVESTIGADORES
MELGRATTI Hernan Claudio
artículos
Título:
From Theory to Practice in Transactional Composition of Web Services
Autor/es:
ROBERTO BRUNI; GIANLUIGI FERRARI; HERNÁN MELGRATTI; UGO MONTANARI; DANIELE STROLLO; EMILIO TUOSTO
Revista:
LECTURE NOTES IN COMPUTER SCIENCE
Editorial:
Springer
Referencias:
Lugar: Berlin / Heidelberg; Año: 2005 vol. 3670 p. 272 - 286
ISSN:
0302-9743
Resumen:
We address the problem of composing Web Services in long-running transactional business processes, where compensations must be dealt with appropriately. The framework presented in this paper is a Java API called Java Transactional Web Services (jtws), which provides suitable primitives for wrapping and invoking Web Services as activities in long-running transactions. jtws adheres to a process calculi formalisation of long-running transactions, called saga, which fixes unambiguously the implemented compensation policy. In particular, the primitives provided by jtws are in one-to-one correspondence with the primitives of sagas,and they are abstract enough to hide the complex details of their realization, thus favouring usability. Moreover, jtws orchestrates business processes in a distributed way.
