Programming Groovy: Dynamic Productivity for the Java Developer

Venkat Subramaniam. Programming Groovy: Dynamic Productivity for the Java Developer. The Pragmatic Programmers, LLC, Raleigh, NC, and Dallas, TX, 2008.

Groovy Recipes: Greasing the Wheels of Java.

Scott Davis. Groovy Recipes: Greasing the Wheels of Java. The Pragmatic Programmers, LLC, Raleigh, NC, and Dallas, TX, 2008.

Grails A Quick-Start Guide:Dave Klein (DK)

http://www.infoq.com/cn/articles/klein-grailsquickstartguide 1 Introduction 10 1.1 Let Me Tell You About Grails. . . . . . . . . . . . . . . . 10 1.2 How Does Grails Do It? . . . . . . . . . . . . . . . . . . . 11 1.3 Why This Book? . . . . . . . . . . . . . . . . . . . . . . . 12 1.4 Who Should Read This Book . . . . . . . . . . . . . . . 13 1.5 Source Code . . . . . . . . . . . . . . . . . . . . . . . . . 13 1.6 Enough Groovy to Be Dangerous . . . . . . . . . . . . . 14 1.7 Groovy Syntax Compared to Java . . . . . . . . . . . . 14 1.8 Groovy Strings . . . . . . . . . . . . . . . . . . . . . . . . 16 1.9 Groovy Closures . . . . . . . . . . . . . . . . . . . . . . . 17 1.10 Groovy Collections . . . . . . . . . . . . . . . . . . . . . 18 1.11 Where to from Here? . . . . . . . . . . . . . . . . . . . . 22 1.12 Acknowledgments . . . . . . . . . . . . . . . . . . . . . . 23 2 Our Project 25 2.1 Introducing TekDays.com . . . . . . . . . . . . . . . . . 26 2.2 Meet Our Customer . . . . . . . . . . . . . . . . . . . . . 26 2.3 Iteration Zero . . . . . . . . . . . . . . . . . . . . . . . . 28 2.4 Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . 34 3 Laying the Foundation 35 3.1 Creating a Domain Class . . . . . . . . . . . . . . . . . . 35 3.2 More About Domain Classes . . . . . . . . . . . . . . . 37 3.3 Testing Our Domain Class . . . . . . . . . . . . . . . . . 38 3.4 Taking Control of Our Domain . . . . . . . . . . . . . . 41 3.5 Modifying Code That Doesn’t Exist . . . . . . . . . . . . 42 3.6 Bootstrapping Some Test Data . . . . . . . . . . . . . . 45 3.7 Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . 49 4 Building Relationships 53 4.1 The TekUser Domain Class . . . . . . . . . . . . . . . . 53 4.2 One-to-One Relationships . . . . . . . . . . . . . . . . . 55 4.3 One-to-Many Relationships . . . . . . . . . . . . . . . . 60 4.4 Collections of Simple Data Types . . . . . . . . . . . . . 62 4.5 Adding a Sponsor Class . . . . . . . . . . . . . . . . . . 64 4.6 Many-to-Many Relationships . . . . . . . . . . . . . . . 66 4.7 Finishing Up the Domain Model . . . . . . . . . . . . . 71 4.8 Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . 73 5 Beyond Scaffolding 75 5.1 Generating Scaffolding Code . . . . . . . . . . . . . . . 75 5.2 Anatomy of a Grails Controller . . . . . . . . . . . . . . 76 5.3 Grails Views with Groovy Server Pages . . . . . . . . . . 83 5.4 Configuring a Database . . . . . . . . . . . . . . . . . . 94 5.5 Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . 97 6 Getting Things Done 98 6.1 Changing All Our Views at Once . . . . . . . . . . . . . 98 6.2 Modifying the Scaffolded Views . . . . . . . . . . . . . . 99 6.3 Event Task List . . . . . . . . . . . . . . . . . . . . . . . 106 6.4 Grails Service Classes . . . . . . . . . . . . . . . . . . . 108 6.5 Integration Testing . . . . . . . . . . . . . . . . . . . . . 111 6.6 Modifying the Task Class . . . . . . . . . . . . . . . . . 113 6.7 Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . 114 7 Forum Messages and UI Tricks 116 7.1 Restricting Messages to an Event . . . . . . . . . . . . . 116 7.2 Of Templates and Ajax . . . . . . . . . . . . . . . . . . . 122 7.3 Display Message Threads with a Custom Tag . . . . . . 128 7.4 Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . 133 8 Knock, Knock: Who’s There? Grails Security 135 8.1 Grails Security Options . . . . . . . . . . . . . . . . . . 135 8.2 Logging In . . . . . . . . . . . . . . . . . . . . . . . . . . 136 8.3 Filters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 139 8.4 Logging Out . . . . . . . . . . . . . . . . . . . . . . . . . 142 8.5 Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . 144 9 Big-Picture Views 146 9.1 Home Page Makeover . . . . . . . . . . . . . . . . . . . . 146 9.2 Creating a New Controller . . . . . . . . . . . . . . . . . 149 9.3 Designing the Dashboard View . . . . . . . . . . . . . . 150 9.4 Adding the Dashboard Action . . . . . . . . . . . . . . . 156 9.5 Adding a Menu . . . . . . . . . . . . . . . . . . . . . . . 158 9.6 Linking to the Dashboard . . . . . . . . . . . . . . . . . 160 9.7 Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . 162 10 Seek, and You Shall Find 163 10.1 Search Using Dynamic Finders . . . . . . . . . . . . . . 163 10.2 Hibernate Criteria Builder . . . . . . . . . . . . . . . . . 166 10.3 The Big Guns: The Searchable Plug-In . . . . . . . . . . 170 10.4 Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . 177 11 Icing on the Cake 178 11.1 The Grails UI Plug-In . . . . . . . . . . . . . . . . . . . . 178 11.2 The Twitter Plug-In . . . . . . . . . . . . . . . . . . . . . 183 11.3 Making the Event Page Customizable with the Blurb Plug-In . . . . . . . . . . . . . . . . . . . . . . . . . . . . 189 11.4 User-Friendly URLs . . . . . . . . . . . . . . . . . . . . . 193 11.5 Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . 196 12 Deployment and Beyond 198 12.1 Using a JNDI Data Source . . . . . . . . . . . . . . . . . 198 12.2 Creating and Deploying a WAR . . . . . . . . . . . . . . 200 12.3 Next Steps . . . . . . . . . . . . . . . . . . . . . . . . . . 201 12.4 Parting Thoughts . . . . . . . . . . . . . . . . . . . . . . 202 A Additional CSS Rules 203 B Resources 205 B.1 Online Resources . . . . . . . . . . . . . . . . . . . . . . 205 B.2 Meet the G3 Community . . . . . . . . . . . . . . . . . . 206 B.3 Other Resources . . . . . . . . . . . . . . . . . . . . . . 210 B.4 IDE Support . . . . . . . . . . . . . . . . . . . . . . . . . 211 C Bibliography 213 Index 214

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