Querying Versioned Software Repositories

  • Dietrich Christopeit
  • Michael Böhlen
  • Carl-Christian Kanne
  • Arturas Mazeika
Part of the Lecture Notes in Computer Science book series (LNCS, volume 6909)

Abstract

Large parts of today’s data is stored in text documents that undergo a series of changes during their lifetime. For instance during the development of a software product the source code changes frequently. Currently, managing such data relies on version control systems (VCSs). Extracting information from large documents and their different versions is a manual and tedious process. We present Qvestor, a system that allows to declaratively query documents. It leverages information about the structure of a document that is available as a context-free grammar and allows to declaratively query document versions through a grammar annotated with relational algebra expressions. We define and illustrate the annotation of grammars with relational algebra expressions and show how to translate the annotations to easy to use SQL views.

Keywords

Source Code Relational Algebra Parse Tree Node Data Grammar Rule 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag Berlin Heidelberg 2011

Authors and Affiliations

  • Dietrich Christopeit
  • Michael Böhlen
  • Carl-Christian Kanne
  • Arturas Mazeika

There are no affiliations available

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