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TwitterOct2008.pdf
 

TwitterOct2008.pdf

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    TwitterOct2008.pdf TwitterOct2008.pdf Presentation Transcript

    • BAY AREA SCALA ENTHUSIASTS WELCOME TO TWITTER! HELP YOURSELF TO BEER AND SUCH IN THE KITCHEN.
    • ROBEY STEVE ALEX TWITTER’S SCALA HEADS
    • STYLE GUIDELINES
    • IMPORTS ENUMERATE ALL ALL IMPORTS MUST BE IMPORTS AT THE TOP OF THE FILE USE WILDCARDS FOR MORE THAN SIX USE BRACE NOTATION FOR MULTIPLE ITEMS IN A PACKAGE AVOID “RELATIVE” IMPORTS
    • IMPLICITS AVOID THEM! THEY MAKE DEBUGGING CONFUSING DOCUMENT THOROUGHLY IF YOU HAVE TO USE THEM RESTRICT TO THE SMALLEST POSSIBLE SCOPE
    • REFLECTION (JAVA) AVOID IT! SLOW POTENTIALLY CONFUSING
    • COMMENTS MANDATORY VSCALADOC SCALADOC EVERY CLASS AND NON-TRIVIAL METHOD WRITE IN PASSIVE VOICE, EX: “RETURNS A LIST[STATUS] OF 20 STATUSES FOR THE GIVEN USER.”
    • WHITESPACE 2 SPACES, NO TABS NO TRAILING WHITESPACE KEEP LINES TO 100 COLUMNS MAX
    • LOGGING USE ONLY JAVA.UTIL.LOGGING.LOGGER NOTHING GOES TO STDOUT/STDERR NAME THE LOGGING OBJECT/VARIABLE “LOG”
    • PROJECT LAYOUT MAVEN CONVENTIONS FOR DIRECTORY STRUCTURE, EX: SRC/[MAIN|TEST]/[SCALA|JAVA]/COM/TWITTER/FOO DEPLOY JARS USE ANT + IVY AS THE BUILD SYSTEM
    • VARIABLE NOMENCLATURE DON’T EXCESSIVELY ABBREVIATE VARIABLE NAMES IT’S OKAY TO USE I, J, K, ETC. FOR INDICES USE “RV” FOR TEMPORARY RETURN VALUES
    • THANKS FOR COMING!