Friday, August 16, 2013

Early Access Release #5 for Solr 4.x Deep Dive is now available for download on

Okay, it's hot off the e-presses: Solr 4.x Deep Dive, Early Access Release #5 is now available for purchase and download as an e-book for $9.99 on at:
(That link says "1", but it apparently correctly redirects to EAR #5.)
Summary of changes:
  • Coverage of Real-time Get component
  • Coverage of Terms Component
  • Coverage of Term Vectors Component
  • Coverage of Highlighting Component
  • Round a decimal number. I added a JavaScript script for the StatelessScriptUpdate processor which takes an input field, a number of decimal digits (default is zero), an output field (defaults to replacing the input field), and an optional flag for whether the rounded decimal number should have its type changed to integer (default is to stay as a float decimal.) Handles multivalued fields.
  • Append a field onto another field. This is just a use of the Clone and Concat update processors, using various delimiters. Also an example that uses the Ignore Field update processor to remove the source field after it has been appended.
  • Map country code to continent code. This JavaScript script for the StatelessScriptUpdate processor can do the mapping in-place or output to another field. Option for case of output string (default is lower case). Handles multivalued fields. Unmappable input values are preserved as-is.
Total of 281 pages of additional content.
Please feel free to email or comment on this blog for any questions or issues related to the book.

-- Jack Krupansky


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