Information exchange operator for a tuplespace

Details Information exchange operator for a tuplespace Information exchange operator for a tuplespace

1998-01-27

1999-10-26

Homere, Jean R.

Data processing: database and file management or data structures

Database design

Data structure types

707 2, 707 4, 707 10, 39520033, 39520049, G06F 1730

Patent

active

059744200

ABSTRACT:
A method, apparatus, and article of manufacture for exchanging information in a computer-implemented database system. The present invention implements this exchange using a new operator known as a Rhonda operator. A Rhonda operator includes a tuple and template as arguments and, when performed, atomically swaps its tuple with a tuple from another Rhonda operator when both their templates match. More specifically, if two processes perform Rhonda operations, and each process' template argument matches the other process' tuple argument, then each process receives the other process' tuple as a result. This atomic synchronization can be performed for two or more Rhonda operators at a time.

REFERENCES:
patent: 5396623 (1995-03-01), McCall et al.
patent: 5815556 (1998-09-01), Thuresson et al.
patent: 5848141 (1998-12-01), Beck et al.
patent: 5854837 (1998-12-01), Trader et al.
Nejdl et al., "Evaluating recursive queries in distributed databases", IEEE Transactions on Knowledge and Data Engineering, vol. 5, No.1, Abstract Only, Feb. 1993.

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