book

Programming Grails

by Burt Beckwith

April 2013

Intermediate to advanced

364 pages

8h 51m

English

O'Reilly Media, Inc.

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Who This Book Is ForOther ResourcesConventions Used in This BookUsing Code ExamplesSafari® Books OnlineHow to Contact UsAcknowledgments
Installing GroovyGroovy ConsoleOptional TypingCollections and MapsPropertiesUsing the AST BrowserDecompiling with JD-GUIDecompiling with javapClosuresInterface CoercionProgrammatic ClosuresOwner, Delegate, and thisGroovy’s Contributions in the War Against VerbosityConstructorsChecked ExceptionsGroovy TruthSemicolonsOptional ReturnScopeParenthesesDefault ImportsDifferences Between Java and GroovyArray Initializationin and def Keywordsdo/while Loopsfor LoopsAnnotationsGroovy EqualityMultimethod DispatchGroovy StringsStatic thisThe Groovy JDK (GDK)DefaultGroovyMethods and InvokerHelperMetaprogramming and the MOPAdding MethodsIntercepting Method CallsgetProperty and setPropertymethodMissing and propertyMissingOperatorsNull-Safe DereferenceElvisSpreadSpaceshipField AccessasinMethod ReferenceOverload Your OperatorsBeing Too Groovydef Considered HarmfulClosures Versus MethodsTypeChecked, CompileStatic, and invokedynamic
Installing GrailsCreating an ApplicationA nte about the work directoryRunning the applicationThe Grails Command LineIDE SupportPluginsOptional PluginsThe cache pluginThe database-migration pluginThe hibernate pluginThe jquery pluginThe resources pluginThe tomcat pluginThe webxml pluginCore PluginsThe codecs pluginThe controllers pluginThe converters pluginThe core pluginThe dataSource pluginThe domainClass pluginThe filters pluginThe groovyPages pluginThe i18n pluginThe logging pluginThe mimeTypes pluginThe scaffolding pluginThe services pluginThe servlets pluginThe urlMappings pluginThe validation pluginConventionsController and View ConventionsData binding conventionsLayout conventionsURI conventionsService ConventionsDomain Class ConventionsMore Information
Data MappingNonpersistent Domain ClassesData ValidationCustom ValidationExtreme Custom ValidationValidation PluginsFriendly Error MessagesBlanks Versus NullsTransientsMapping CollectionsQueryingSaving, Updating, and DeletingNoSQL Support
Inversion of Control and Dependency InjectionComplex Dependency Configuration Using Spring SpELManually Injecting Dependencies at RuntimeBean ScopesTransactional Services@TransactionalTransaction ProxiesUnintentionally bypassing the bean proxyTransaction Utility MethodsBean Life Cycles and InterfacesBean PostprocessorsA Groovier WayBean AliasesInternationalizationResourcesResource Dependency InjectionResourceLocatorData Binding and ValidationData BindingValidationDatabase PersistenceThread-Local HoldersJdbcTemplateOther Database SupportSpring MVCFiltersUsing Spring MVC ControllersRemotingClient AccessJMSEJBsJMXEmailCache Abstraction
Mapping Domain ClassesDialectsDialect AutodetectionDialect CustomizationHibernate Without GORMhibernate.cfg.xmlHibernateUtilAuthorBookExperimenting with the APIsThe SessionwithSessionwithNewSessionOpen Session in ViewDisabling OSIVCustom User TypesOptimistic and Pessimistic LockingAccessing the Session’s Connectionschema-exportSQL LoggingProxiesequals, hashCode, and compareToCachingExamplesCaching APIevictingAccessing cachesQuery Caching Considered Harmful?HQLexecuteQueryQuery SyntaxReport QueriesSingle propertiesMultiple propertiesnew listAggregate FunctionsExpressionsCollectionsCollections PerformanceThe SolutionSession.createFilter()Custom ConfigurationsMapping Views and Subselect ClassesSubselect Domain ClassesSelecting with a POGOget(), load(), and read()get()load()read()PerformanceCachingLazy LoadingTransactional Write-Behind
JMSXA Support with the Atomikos PluginMailSending EmailSending Email AsynchronouslySending Email from Log4jTestingSOAP Web ServicesThe Server ApplicationThe Client ApplicationTCPMonRESTTCPMonJMX
External config FilesLoading the ConfigurationPartitioning Config FilesSplitting resources.groovyModularizing Within resources.groovyEnvironment-Specific Spring BeansBeans Closures in Config.groovyOptions for BuildConfig.groovyAdding Additional Source FoldersExtra Folders Under grails-app
Creating a PluginInitial StepsThe Plugin DescriptorMetadataLife Cycle CallbacksdoWithWebDescriptordoWithSpringdoWithDynamicMethodsdoWithApplicationContextonChangeonConfigChangeonShutdownSplitting Applications into PluginsInline PluginsBuilding and ReleasingAutomated TestingA mini DSL to describe versionsContinuous integrationTesting scriptsRunning the TestsCustom Plugin RepositoriesPlugin DocumentationCustom ArtifactsSome Notes on Plugin Development Workflow

OWASPA1: InjectionCommand injectionA2: Cross-Site Scripting (XSS)RemediesBest practicesA3: Broken Authentication and Session ManagementA4: Insecure Direct Object ReferencesRemediesA5: Cross-Site Request ForgeryRemediesA6: Security MisconfigurationRemediesA7: Insecure Cryptographic StorageBest practicesA8: Failure to Restrict URL AccessA9: Insufficient Transport Layer ProtectionA10: Unvalidated Redirects and ForwardsSecurity Pluginsspring-security-coreGetting startedAccess controlOther Plugins and LibrariesAntiSamyESAPIHDIVGeneral Best Practices
Cost SavingsWhat You Give UpCloud FoundryDatabase ApplicationsCreating an applicationScalingHTTP sessionsNoSQL, RabbitMQ, and SearchableMonitoring and the Cloud Foundry UI PluginThe cloud-foundry-ui PluginHerokuDatabase ApplicationsCreating an applicationScalingHTTP sessionsBuild PacksOther ProvidersOther Uses for Cloud Services
Grails FiltersHTTP FiltersGroovy AOPRegistering Metaclass InterceptorsError Code URL MappingsSpring AOPEnabling Spring AOPDefining AspectJ-Annotated AspectsCompile-Time Weaving
Why Doesn’t the Upgrade Script Do More?A General Approach to UpgradingUpgrading Petclinic: A Case StudyStep 1: Determine the changes in the applicationStep 2: Make the first round of changes in a new applicationStep 3: Make the second round of changesStep 4: Finishing upRunning the upgrade script insteadA Short History of GrailsGrails 1.2Grails 1.2.2Grails 1.2.4Grails 1.3Grails 1.3.1Grails 1.3.2Grails 1.3.4Grails 1.3.6Grails 1.3.7Grails 1.3.8Grails 1.3.9Grails 2.0Grails 2.0.2Grails 2.1.xGrails 2.2.xNotes on Upgrading

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About the Author

Burt Beckwith has been a software developer for 15 years, most of that as a JVM developer, and for the last four years working with Grails and Groovy. He is a core developer on the Grails team at SpringSource, and has created over 35 Grails plugins. Burt is a frequent speaker at conferences and user groups where he shares his passion for Grails and other Groovy-based technologies, in particular those that are related to persistence, security, and performance. He blogs at http://burtbeckwith.com/blog/.