• ANTLR - Not Your Parent's Parser Generator


    Start Time:

    Jan 12, 2017 6:00 PM

    End Time:

    Jan 12, 2017 9:00 PM

    Location:
    Constant Contact Reservoir Place
    1601 Trapelo Road Waltham MA 021451
    1


    Speaker: Robert Smieja

    ANTLR (ANother Tool for Language Recognition) is a parser generator that is used in many tools and frameworks (Groovy, Hibernate, Clover, and more). Come learn about the the history of ANTLR, and how to start using ANTLR4 in your own Java projects.

    Do you remember Lex & Yacc from the “good old” C days? Perhaps you cut your parser-generator-teeth on Bison – or Frown, or Lemon, or PLY – or one of many others. Whatever you've used before, this meeting is the time to come up to speed on ANTLR. If you're like me, it's been many years since you've taken a serious look at grammars and parsing. In fact, the current trend is to develop so-called “DSL” libraries that make a carrier language read like different language – but that is all smoke and mirrors. A full DSL needs a parser, and a parser needs a parser generator.

    ANTLR is one of the more powerful generators available to the Java community. It's well grounded in theoretical computer science, is a mature tool with good IDE integration, and has a committed ecosystem. During this presentation, we will give a quick review of grammar specification, discuss lexical & parser technologies, and then go deeper into what differentiates ANTLR from the pack. Included in the presentation will be a review of working code and runtime demonstration of parsing in action – of an input source that you might find surprising, delightful, and (most importantly) useful in your day-to-day work.

    Speaker Biography

    Robert Smieja is a software engineer at Vantiv in Lowell. He recently graduated from WPI in 2015 and he enjoys spending his free time exploring the JVM ecosystem.




NEJUG Calendar

Recent Events
    • So What’s Going On With Java EE?


      Thursday March, 12, 2020 06:00 PM
      Microsoft
      5 Wayside Rd Burlington MA 01803
      0

    NOTE: Registration is ONLY via MeetUp:

    MeetUp Registration: So What’s Going On With Java EE?.


    What does JavaEE’s reincarnation as JakartaEE mean for developers? Author and JakartaEE ambassador Reza Rahman will discuss the recent history and present-day state of JakartaEE. He will then demonstrate the latest JakartaEE updates and coming attractions in Servlets, JPA, CDI, Jakarta REST, Security features, and other technologies.

    • Creating Resilient Micro-Services


      Thursday February, 13, 2020 06:00 PM

      1

    NOTE: Registration is ONLY via MeetUp:

    MeetUp Registration: Creating Resilient Micro-Services.


    The foundation of Application Resiliency is often found in the application code where Fault Tolerance is baked into the application at the time of designing and coding….

    This presentation starts with building resiliency ground-up by baking the basic crucial patterns into the application. Resiliency4j provides the out of the box integration with Spring Boot, a defacto standard micro-service framework.

    The patterns discussed include:

    • Rate Limiter
    • Retry
    • Bulkhead
    • Circuit Breaker
    • Timeouts
    • Distilling Java Containers


      Thursday January, 09, 2020 06:00 PM
      Microsoft
      5 Wayside Rd Burlington MA 01803
      1

    Register at our NEJUG MeetUp events page

    Three evolutionary ecosystems work well together: Java, Containers, and Kubernetes. Past versions of Java were never designed to be "container aware." This has led some to stray from the JVM to consider other shiny languages for Containers.

    But wait, let’s discover what Java 9, 10, 11, 12, 13 (…) has done to get our applications into efficiently distilled containers that pack nicely into Kubernetes.

    • Annual NEJUG Holiday Party - 2019!


      Thursday December, 12, 2019 06:00 PM
      Bertucci's
      475 Winter St Waltham MA 02451
      3

    The NEJUG Holiday Party is scheduled for our normal second Thursday of the month, December 12, 2019, but it is not a normal presentation meeting. Instead, it's an "all fun time" event where we get to chat, eat, drink, network, and socialize. Come, join us for dinner, great conversation and raffle prizes. Buy your tickets now and get the early bird discount!

    CLICK HERE 🡆  NEJUG Holiday Party Tickets (at EventBrite)

    Menu items include:

    • Appetizers
    • Salad
    • Bread Rolls
    • Chicken Parma
    • Four Cheese Ravioli
    • Rigatoni with Broccoli & Chicken
    • Desserts
    • Soft drinks, tea, and coffee are included.
    • Cash bar also available.
    • NO PIZZA - That's for regular meetings...

     

    Space is limited to 50 guests so buy your tickets early! Tickets for yourself and your guests are available here: https://www.eventbrite.com/e/nejug-holiday-2019-tickets-72434753297

     

    Corporate Sponsors:

    We are looking for additional corporate sponsors to help maximize the fun! Contact Avi Neer at avineer@gmail.com / (508) 523-2884 to share a sponsor idea or contact for monetary support, raffles items, or door prizes. Sponsors will be acknowledged with a logo and link on our website, and will have a short time slot during the event to speak directly with the attendees.

     

    Thanks to our primary Holiday Party sponsor:

    John Galt contributes to the success of organizations and individuals throughout the United States by expertly matching them with one another. Founded in 1997, they have worked with thousands of organizations and individuals over the years to enable them to achieve success. Their focus is on contract technology professionals in disciplines which are critical to an organization’s success.