Apresentação de Miguel Ping - 5º encontro PT.JUG.

1. Miguel Ping Introduction to Grails Framework 18/03/2010

3. Grails

4. Grails = Groovy on (G)Rails

5. Grails is MVC

6. Powered by Spring and Hibernate

7. Model/Domain Layer

8. View Layer

9. Controllers

10. DemoAgenda

11. Groovy + =

12. Java Class publicclassHelloWorld {privateString name;publicvoidsetName(String name) {this.name = name; }publicStringgetName() {return name; }publicStringgreet() {return"Hello "+ name; }publicstaticvoidmain(String[] args) {HelloWorldhelloWorld=newHelloWorld();helloWorld.setName("Groovy");System.out.println(helloWorld.greet()); }}

13. Groovy Class publicclassHelloWorld {privateString name;publicvoidsetName(String name) {this.name = name; }publicStringgetName() {return name; }publicStringgreet() {return"Hello "+ name; }publicstaticvoidmain(String[] args) {HelloWorldhelloWorld=newHelloWorld();helloWorld.setName("Groovy");System.out.println(helloWorld.greet()); }}

15. Public unless defined otherwise

16. Getters and Setters by default

17. String interpolation

18. Semicolons are optional

19. Type declarations are optional

20. Return keyword is optionalGroovy Features class HelloWorld {def namedefgreet() { "Hello ${name}" }}helloWorld =newHelloWorld(name: "Groovy")println helloWorld.greet()

22. Dynamically typed (types are “optional”)

23. Closures

24. Anonymous Inner Classes (recently)

25. Meta Object Protocol

26. Hence, MetaClasses and all the magic

27. Compiles down to bytecode

28. Excellent Java Interop (Groovy can call Java and vice-versa)

29. Lots of synthatic sugar

30. person?.address

31. def a = b ?:cGroovy Definition

32. Grails + =

34. SpringSource founded in 2004

35. G2One (The Groovy Grails Company) founded in 2007 by the Groovy and Grails project leads

36. November 2008: G2One was acquired by SpringSource

37. August 2009: SpringSource was acquired by VMware for $420m

38. SpringSource is now a division of VMware Overview

40. Heavily inspired on Rails framework

41. But takes advantage of Java technology like Spring and servlets

42. It means good Java (platform) integration

43. Produces .war artifacts deployable in any servlet container

44. Has some command-line scripts to ease the pain

45. > grails generate-all MyClass

46. > grails test-app -integration

47. Has a plugin architecture

48. > grails install-plugin jqueryOverview

49. Grails is a Full Stack Groovy Grails Sitemesh Plugins Hibernate Other Libraries Spring Java Virtual Machine / JDK

51. confConfiguration sources

52. controlllersController layer

53. domainModel layer

54. i18nInternationalized Resource Bundles

55. servicesService layer

56. taglibDynamic Tag Libraries

57. viewsGroovy Server Pages (GSP)

58. web-appStylesheets, Javascript, etc

59. scriptsCustom command-line scripts

60. srcOther project sources

61. groovyOther Groovy project sources

62. javaOther Java project sources

63. lib3th Party Libraries

65. Plus a DSL for domain constraints

66. Constraints/Validations

67. relationships

68. belongsTo, hasMany, mappedBy

69. max, min, blank, nullable, ... , custom

70. Implies validation

71. hasErrors(), validate()

72. DB operations

73. CRUD: save(), delete(), ...

74. Dynamic Finders

75. FindAllBy<Field> - Magick!!!Models

77. Taglib

78. Pagination, i18n, ajax, page navigation

79. Hyperlinks

81. Action is the closure name

82. Params are available in the controller’s closure

83. etc (including custom taglibs)

84. Partial render/Templates

85. Reusable, allows composition

86. g:render

87. LayoutsViews - GSPs

92. Grails is action-first, it means the controller runs before the view

93. Spring-managed beans

94. Can hook up with another beans through Spring DI

96. redirect,

97. return [beanName: bean]returns some data to the view Controllers

100. Spring Security / Acegi

101. RIA/AJAX: RichUI & GrailsUI

102. Testing (eg: Canoo, EasyB, etc)

103. Debugging plugins (eg: simple dashboard)

104. Optimization plugins (eg: js minifier)

105. Deployment plugins (eg: google-app-engine, amazon)

106. Other

107. Multi-tenant

108. Paypal

109. Openid

110. SpringWS

111. GWTPlugins

112. 2 classes Constraints Relations Scaffolding Dynamic Finders View Some GSP navigation Controllers CRUD AJAX Test Drive

113. Questions

115. grails create-controller [controller name]

116. grails create-domain-class [class name]

117. grails create-service [service name]

118. grails create-unit-test [test name]

119. grails create-tag-lib [taglib name]

120. grails generate-all [class name]

121. grails generate-views [class name]Command line scripts - development

123. grails compile

124. grails console

125. grails doc

126. grails install-plugin

127. grails run-app

128. grails warCommand line scripts - lifecycle

130. Database connections

131. conf/UrlMapping.groovy

132. Routing

133. conf/BootStrap.groovy

134. Bootstrap file

135. conf/Config.groovy

136. Configurations (MIME mappings, more…)Important Files

138. LessThanEquals

139. GreaterThan

140. GreaterThanEquals

141. Between

142. Like

143. Ilike (i.e. ignorecase like)

144. IsNotNull

145. IsNull

146. Not

147. Equal

148. NotEqual

149. And

150. OrDynamic Finders