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Content Provider | ACM Digital Library |
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Author | Erdweg, Sebastian Mitschke, Ralf Salvaneschi, Guido Köhler, Mirko Mezini, Mira |
Abstract | 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. |
Starting Page | 417 |
Ending Page | 432 |
Page Count | 16 |
File Format | |
ISBN | 9781450325851 |
DOI | 10.1145/2660193.2660242 |
Language | English |
Publisher | Association for Computing Machinery (ACM) |
Publisher Date | 2014-10-15 |
Publisher Place | New York |
Access Restriction | Subscribed |
Subject Keyword | Reactive programming Incremental computation Scala |
Content Type | Text |
Resource Type | Article |
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