Did Atlassion build JIRA Query Language (JQL) from scratch?

My company is looking at advanced search and reporting solutions, and are considering (among other options) creating something akin to JIRA's JQL for maximum fl开发者_C百科exibility.

My googling leads me to believe Atlassian built JQL from scratch, at least as a language with syntax and a parser, but I thought I'd try SO before concluding. Anyone know, at a high level, how they did it? Was there one or more Open Source project they based it on?

(Kudos to Atlassian either way - JQL is gorgeous!)

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I think they did it from scratch. The underlying architecture is crisp but quite complex. It took me a good few hours to get it, just reading the source and minimal user docs.

~Matt

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Atlassian built JQL on top of Apache Lucene. You might want to take a look at Elasticsearch or Solr, which are open source alternatives, also built on Lucene.

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I have been using Jira for a year and I notice "Apache Lucene" on the the directory, and before this I got a job wherein I was force to learn apache solr. So in conclusion, Jira is using Apache Lucene as a searching library which is also used was being used in Solr.

for more info read this: http://www.lucenetutorial.com/lucene-vs-solr.html