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Tomas Grails
 

Tomas Grails

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    Tomas Grails Tomas Grails Presentation Transcript

    • What can Grails do for me? An intro to Grails for Flex and Java developers Flex on Java Exchange, London, June, 2010 Tomas Lin ( @tomaslin ) Wednesday, 16 June 2010
    • Life is too short for XML Wednesday, 16 June 2010
    • Agenda • Who is this guy? • 4 Cool Things About Grails. • Building a Grails app. • Flex and Grails - grails flex scaffold demo. • Flex and Grails - blazeds4 plugin demo • Questions? Wednesday, 16 June 2010
    • Who is this guy? • Don’t worry, I’m not trying to sell you anything. • Currently a senior developer at DMC digital • Java / UI Developer since 2000. • Worked with Grails and Flex for about 2.5 years. • Canadian citizen born in Taiwan, raised in Guatemala and working in the UK. Wednesday, 16 June 2010
    • Blue Ember Grills Flex 3 & Grails Wednesday, 16 June 2010
    • Suzuki Canada Flex 3 & Grails Wednesday, 16 June 2010
    • Dan Aykroyd Wines HTML, CSS, Flex 3, Grails Wednesday, 16 June 2010
    • Empora.com Content Management System Adobe AIR Wednesday, 16 June 2010
    • Grails • An open source web framework inspired by Rails and Django. • http://www.grails.org • Supported by VMWare / SpringSource Wednesday, 16 June 2010
    • Grails • Sky.com • Walmart • Wired • LinkedIn • Businessweek.in • Suzuki.ca • Tacobell.ca • Deutsche Bank Wednesday, 16 June 2010
    • 4 cool things about Grails Wednesday, 16 June 2010
    • Cool Thing #1: Ready to Go Spring Framework Hibernate ( GORM ) Quartz ( jobs ) Sitemesh ( layouts ) Spring MVC ( webflow ) Prototype / Scriptaculous Ant Ivy HSQLDB Tomcat Wednesday, 16 June 2010
    • Cool Thing #2 : Groovy • Java’s best friend • Dynamic JVM language with full support for Java objects and libraries. • Compiles to Java Bytecode. • Closures, builders, dynamic typing, etc... • More relaxed, script-like syntax • Features of Smalltalk, Python, Ruby Wednesday, 16 June 2010
    • Text Text Java . But also Groovy . original author of this slide is Marcel Overdijk - Wednesday, 16 June 2010
    • • Dynamic types using the def keyword • Optional return types • Everything is public by default • Optional semicolons, parentheses • Variable interpolation via GStrings • Automatic setters and getters original author of this slide is Marcel Overdijk - Wednesday, 16 June 2010
    • Healthy ecosystem • gPars - parallel processing • Groovy++ - static typing • Spock - data / behaviour driven testing and specifications framework • Gaelyk - lightweight web framework for the Google App Engine • Tellurium - automatic UI based testing framework based on Selenium. • Griffon - Swing / Desktop applications. Wednesday, 16 June 2010
    • Cool Thing #3 : 426 Plugins Wednesday, 16 June 2010
    • Cool Thing #4: Flex + Flash Integration BlazeDS GraniteDS Grails Flex Scaffold Openlaszlo JW FLV Media Library sIFR Red5 Video Wednesday, 16 June 2010
    • Building a Grails application ( woohoo! ) Wednesday, 16 June 2010
    • Wednesday, 16 June 2010
    • Wednesday, 16 June 2010
    • Wednesday, 16 June 2010
    • Grails Flex Scaffold • Developed by Cubika in Argentina • Flex 3, Cairngorm, Stark Security @eapfel Wednesday, 16 June 2010
    • Wednesday, 16 June 2010
    • BlazeDS plugin • Developed by Sébastien Arbogast • BlazeDS, Spring-Flex Integration • Spring Security @ sarbogast Wednesday, 16 June 2010
    • Wednesday, 16 June 2010
    • Web Services • Sometimes we can’t use BlazeDS / AMF • REST - built in content negotiation • SOAP / WSDL - via plugins like XFire, CXF or Spring WS Wednesday, 16 June 2010
    • Wednesday, 16 June 2010
    • Notes • The Java introspector in Flash Builder 4 does not work with Groovy classes, but you can use the DTO plugin to automatically generate Java DTOs and cast between Java / Groovy. • There are a few plugins that aid with Hibernate LazyInitialization issues. Gorm Labs, for example, dehydrates Hibernate sessions before being sent across the wire. • IDE Support is actually quite good. My IntelliJ trial expired yesterday. STS and Netbeans also do Grails. Wednesday, 16 June 2010
    • Other uses. • Tag libraries for embedding SWFs, providing alternative content for SEO. • Adding server side search via Lucene or Solr. • Deployment platform for Amazon / App Engine. • A nice proxy to bypass Flash Security restrictions. • Backend glue to PHP / Clojure. • Data import / massaging. Wednesday, 16 June 2010
    • Wednesday, 16 June 2010
    • Flex / Grails Wish List • Flash Builder extension for Grails • UI Testing automation • Integration with Model Driven Development / LiveCycle services. • A clear way to deal with Hibernate sessions. • A way to template frameworks like Parsley, Robotlegs or PureMVC • Better integration with messaging options. Wednesday, 16 June 2010
    • Why do I like Grails? • Allows me to build backends to my Flex applications quickly and effectively. • Integrates well with existing Java libraries. • Lets me try new things fairly risk free. • Encourages modular development / re-use. • Constantly getting better. • Makes writing web applications fun. Wednesday, 16 June 2010
    • Learn More! Wednesday, 16 June 2010 grails.org/books
    • Learn More! • http://www.grails.org • Come to the user group meetings. • Third Monday every month. Here. • Grails mailing list. • twitter: @tomaslin • email: tomaslin@gmail.com Wednesday, 16 June 2010
    • Questions? Wednesday, 16 June 2010