PROCOL(ID:1655/pro011)

J. van den Bos, Erasmus U, Rotterdam. A concurrent object- oriented language with protocols, delegation, persistence and constraints.

Structures:
References:
  • van den Bos, Jan "PROCOL: a protocol-constrained concurrent object-oriented language" pp149-151 view details Abstract: PROCOL is a simple concurrent object-oriented language supporting a distributed, incremental and dynamic object environment. Its communication is based on unidirectional messages. Objects are only bound during actual message transfer and not during the processing of the message. This short duration object binding promotes parallelism. The communication leading to access has to obey an explicit protocol in each object. It takes the form of a specification of the occurrence and sequencing of the interaction between the object and its communication partners. The use of such protocols fosters structured, safer and potentially verifiable communication between objects. DOI
          in SIGPLAN Notices 24(04) April 1989 incoroporating Proceedings of the 1988 ACM SIGPLAN workshop on Object-based concurrent programming, San Diego view details
  • van den Bos, J.; and Laffra, C. "PROCOL: a parallel object language with protocols" pp95-102 view details Abstract: PROCOL is a parallel C-based object-oriented language with communication based on one-way synchronous messages. Objects execute in parallel unless engaged in communication. Communication partners are defined by object instance identifiers, or by type. Therefore send-receive mappings may be 1-1, n-1, or 1-n, though only 1 message is transferred. PROCOL controls object access by a novel concept: an explicit per-object protocol. This protocol is a specification of the occurrence and sequencing of the communication between the object and its partners. Thus protocols support structured, safer and potentially verifiable information exchange between objects. Protocols also act as a composition rule over client objects, thereby offering a 'part-of' hierarchy of these cooperating objects. DOI
          in SIGPLAN Notices 24(10) October 1989 incorporating the Proceedings of the Conference on Object Oriented Programming Systems Languages and Applications, New Orleans (OOPSLA 89) view details
  • van den Bos, Jan, et al "PROCOL A Concurrent Object Language with Protocols, Delegation and Constraints", pp511-538 view details
          in Acta Informatica 28(6) July, 1991 view details
  • Philippsen, Michael "A survey of concurrent object-oriented languages" pp917-980 view details
          in Concurrency: Practice and Experience 2000 v12 view details