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Grails/Groovyによる開発事例紹介

The document discusses Groovy, a dynamic language for the Java Virtual Machine. It has features from Python, Ruby, and Smalltalk, but uses Java-like syntax. Examples show Hello World programs in Java and Groovy. Later sections discuss Grails, a web framework for Groovy, and G*Magazine, a publication about Groovy. The document contains code samples for defining a Book domain class in Grails, implementing services with Spring Security annotations, writing Spock specifications, and Geb tests using the Page Object pattern.

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2011   9   23
2011   9   23
2011   9   23
JSR241

                • Groovyis an agile, dynamic
                 programming language for the Java
                 Virtual Machine.

                • Groovyincludes features found in
                 Python, Ruby, and Smalltalk, but
                 uses syntax similar to the Java
                 programming language.



2011   9   23
HelloWorld.java

       public class HelloWorld {
         public static void main(String[] args) {
           System.out.println("Hello, World!");
         }
       }




2011   9   23
HelloWorld.groovy

       public class HelloWorld {
         public static void main(String[] args) {
           System.out.println("Hello, World!");
         }
       }


                 Java



2011   9   23

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Grails/Groovyによる開発事例紹介

  • 1. 2011 9 23
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  • 4. JSR241 • Groovyis an agile, dynamic programming language for the Java Virtual Machine. • Groovyincludes features found in Python, Ruby, and Smalltalk, but uses syntax similar to the Java programming language. 2011 9 23
  • 5. HelloWorld.java public class HelloWorld { public static void main(String[] args) { System.out.println("Hello, World!"); } } 2011 9 23
  • 6. HelloWorld.groovy public class HelloWorld { public static void main(String[] args) { System.out.println("Hello, World!"); } } Java 2011 9 23
  • 7. HelloWorld.groovy println "Hello, World!" 2011 9 23
  • 8. Grails 2011 9 23
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  • 28. class Book { String title String isbn static constraints = { title blank:false isbn blank:false, unique:true } } 2011 9 23
  • 29. class Book { static mapWith = 'mongo' String title String isbn static constraints = { title blank:false isbn blank:false, unique:true } } 2011 9 23
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  • 36. class FolderService { void rename(Long id, String newName) { def folder = Folder.get(id) folder.name = newName folder.save() } List<Folder> findAll() { Folder.findAll() } } 2011 9 23
  • 37. class FolderService { @PreAuthorize("hasPermission(#id, 'sample.Folder', admin)") void rename(Long id, String newName) { def folder = Folder.get(id) folder.name = newName folder.save() } @PostFilter("hasPermission(filterObject, read)") List<Folder> findAll() { Folder.findAll() } } 2011 9 23
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  • 40. import spock.lang.* class HelloSpock extends Specification { def " "() { expect: name.size() == length where: name | length "Spock" | 5 "Kirk" | 4 "Scotty" | 6 } } 2011 9 23
  • 41. @Test public void test() { assert 1 + 1 * 2 == 4 } // Assertion failed: assert 1 + 1 * 2 == 4 | | | 3 2 false 2011 9 23
  • 42. 2011 9 23
  • 43. class LoginSpec extends GebSpec { def ' '() { when: ' ' to 'login' at { title == 'Login' } and: ' / ' $('input[name="username"]').value 'username' $('input[name="password"]').value 'password' $('input[name="login_button"]').click() then: ' ' at { title == 'Welcome' } } } 2011 9 23
  • 44. class LoginPage { static at = { title == 'Login'} static content = { username { $('input[name="username"]') } password { $('input[name="password"]') } loginButton { $('input[name="login_button"]') } } } 2011 9 23
  • 45. class LoginSpec extends GebSpec { def ' '() { given: ' ' to LoginPage when: ' / ' username = 'username' password = 'password' loginButton.click() then: ' ' at TopPage } } 2011 9 23
  • 46. class LoginSpec extends GebSpec { def ' '() { given: new User(username:'user', password:'pass').save() to LoginPage when: username = 'username' password = 'password' loginButton.click() then: at TopPage } } 2011 9 23
  • 47. class LoginSpec extends GebSpec { def ' '() { given: fixtureLoader.load { user User, username:'user', password:'pass' admin User, username:'admin', password:'pass' } to LoginPage when: username = 'username' password = 'password' loginButton.click() then: at TopPage } } 2011 9 23
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