Publikationen

Autor	Mitschke, Ralf; Erdweg, Sebastian; Köhler, Mirko; Mezini, Mira; Salvaneschi, Guido
Datum	2014
Art	Conference Proceedings
Abstrakt	An incremental computation updates its result based on a change to its input, which is often an order of magnitude faster than a recomputation from scratch. In particular, incrementalization can make expensive computations feasible for settings that require short feedback cycles, such as interactive systems, IDEs, or (soft) real-time systems. This paper presents i3QL, a general-purpose programming language for specifying incremental computations. i3QL provides a declarative SQL-like syntax and is based on incremental versions of operators from relational algebra, enriched with support for general recursion. We integrated i3QL into Scala as a library, which enables programmers to use regular Scala code for non-incremental subcomputations of an i3QL query and to easily integrate incremental computations into larger software projects. To improve performance, i3QL optimizes user-defined queries by applying algebraic laws and partial evaluation. We describe the design and implementation of i3QL and its optimizations, demonstrate its applicability, and evaluate its performance.
ISBN	978-1-4503-2585-1
Serie	OOPSLA '14
In	Proceedings of the 2014 ACM International Conference on Object Oriented Programming Systems Languages & Applications, p.417-432
Publisher	ACM
Schlüssel	TUD-CS-2014-1102
Url	https://tubiblio.ulb.tu-darmstadt.de/id/eprint/98206

i3QL: Language-Integrated Live Data Views