From sequential programs to multi-tier applications by program transformation

14 years 4 months ago

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Modern applications are designed in multiple tiers to separate concerns. Since each tier may run at a separate location, middleware is required to mediate access between tiers. However, introducing this middleware is tiresome and error-prone. We propose a multi-tier calculus and a splitting transformation to address this problem. The multi-tier calculus serves as a sequential core programming language for constructing a multi-tier application. The application can be developed in the sequential setting. Splitting extracts one process per tier from the sequential program such that their concurrent execution behaves like the original program. The splitting transformation starts from an assignment of primitive operations to tiers. A program analysis determines communication requirements and inserts remote procedure calls. The next transformation step performs resource pooling: it optimizes the communication behavior by transforming sequences of remote procedure calls to a stream-based pro...

Matthias Neubauer, Peter Thiemann

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