Using JSR 330 Standard Annotations
7.11 Using JSR 330 Standard Annotations
Starting with Spring 3.0, Spring offers support for JSR-330 standard annotations Dependency Injection. Those annotations are scanned in the same way as the Spring annotations. You just need to have the relevant jars in your classpath. Note If you are using Maven, the javax.inject artifact is available in the standard Maven repository http:repo1.maven.orgmaven2javaxinjectjavax.inject1 . You can add the following dependency to your file pom.xml: dependency groupId javax.inject groupId artifactId javax.inject artifactId version 1 version dependency Dependency Injection with Inject and Named Instead of Autowired , javax.inject.Inject may be used as follows: import javax.inject.Inject; public class SimpleMovieLister { private MovieFinder movieFinder; Inject public void setMovieFinderMovieFinder movieFinder { this .movieFinder = movieFinder; } public void listMovies { this .movieFinder.findMovies...; ... } } As with Autowired , it is possible to use Inject at the field level, method level and constructor- argument level. Furthermore, you may declare your injection point as a Provider , allowing for on- demand access to beans of shorter scopes or lazy access to other beans through a Provider.get call. As a variant of the example above: 4.3.9.RELEASE Spring Framework 120 import javax.inject.Inject; import javax.inject.Provider; public class SimpleMovieLister { private ProviderMovieFinder movieFinder; Inject public void setMovieFinderProviderMovieFinder movieFinder { this .movieFinder = movieFinder; } public void listMovies { this .movieFinder.get.findMovies...; ... } } If you would like to use a qualified name for the dependency that should be injected, you should use the Named annotation as follows: import javax.inject.Inject; import javax.inject.Named; public class SimpleMovieLister { private MovieFinder movieFinder; Inject public void setMovieFinder Namedmain MovieFinder movieFinder { this .movieFinder = movieFinder; } ... } Named and ManagedBean: standard equivalents to the Component annotation Instead of Component , javax.inject.Named or javax.annotation.ManagedBean may be used as follows: import javax.inject.Inject; import javax.inject.Named; NamedmovieListener ManagedBeanmovieListener could be used as well public class SimpleMovieLister { private MovieFinder movieFinder; Inject public void setMovieFinderMovieFinder movieFinder { this .movieFinder = movieFinder; } ... } It is very common to use Component without specifying a name for the component. Named can be used in a similar fashion: 4.3.9.RELEASE Spring Framework 121 import javax.inject.Inject; import javax.inject.Named; Named public class SimpleMovieLister { private MovieFinder movieFinder; Inject public void setMovieFinderMovieFinder movieFinder { this .movieFinder = movieFinder; } ... } When using Named or ManagedBean , it is possible to use component scanning in the exact same way as when using Spring annotations: Configuration ComponentScanbasePackages = org.example public class AppConfig { ... } Note In contrast to Component , the JSR-330 Named and the JSR-250 ManagedBean annotations are not composable. Please use Spring’s stereotype model for building custom component annotations. Limitations of JSR-330 standard annotations When working with standard annotations, it is important to know that some significant features are not available as shown in the table below: Table 7.6. Spring component model elements vs. JSR-330 variants Spring javax.inject. javax.inject restrictions comments Autowired Inject Inject has no required attribute; can be used with Java 8’s Optional instead. Component Named ManagedBean JSR-330 does not provide a composable model, just a way to identify named components. Scopesingleton Singleton The JSR-330 default scope is like Spring’s prototype . However, in order to keep it consistent with Spring’s general defaults, a JSR-330 bean declared in the Spring container is a singleton by default. In order to use a scope other than singleton , you 4.3.9.RELEASE Spring Framework 122 Spring javax.inject. javax.inject restrictions comments should use Spring’s Scope annotation. javax.inject also provides a Scope annotation. Nevertheless, this one is only intended to be used for creating your own annotations. Qualifier Qualifier Named javax.inject.Qualifier is just a meta-annotation for building custom qualifiers. Concrete String qualifiers like Spring’s Qualifier with a value can be associated through javax.inject.Named . Value - no equivalent Required - no equivalent Lazy - no equivalent ObjectFactory Provider javax.inject.Provider is a direct alternative to Spring’s ObjectFactory , just with a shorter get method name. It can also be used in combination with Spring’s Autowired or with non- annotated constructors and setter methods.7.12 Java-based container configuration
Parts
» Dependency Injection and Inversion of Control Framework Modules
» Usage scenarios Introduction to the Spring Framework
» Java EE 6 and 7 Groovy Bean Definition DSL
» Core Container Improvements General Web Improvements
» WebSocket, SockJS, and STOMP Messaging Testing Improvements
» JMS Improvements Caching Improvements
» Web Improvements New Features and Enhancements in Spring Framework 1
» WebSocket Messaging Improvements Testing Improvements
» Core Container Improvements New Features and Enhancements in Spring Framework 4.2
» Data Access Improvements JMS Improvements Web Improvements
» Core Container Improvements Data Access Improvements Caching Improvements
» JMS Improvements Web Improvements WebSocket Messaging Improvements Testing Improvements
» Introduction to the Spring IoC container and beans
» Container overview The IoC container
» Bean overview The IoC container
» Dependencies The IoC container
» y.Baz beans The IoC container
» driverClassName = username = The IoC container
» email = spouse-ref = The IoC container
» y.Bar bean y.Foo constructor-arg y.Foo c:bar-ref baz-ref = y.Foo c:_0-ref _1-ref =
» y.z.MyValueCalculator b.c.ReplacementComputeValue Bean scopes
» y.Foo property Customizing the nature of a bean
» Bean definition inheritance The IoC container
» Container Extension Points The IoC container
» Annotation-based container configuration The IoC container
» Classpath scanning and managed components
» Using JSR 330 Standard Annotations
» Java-based container configuration The IoC container
» Environment abstraction The IoC container
» Registering a LoadTimeWeaver Additional Capabilities of the ApplicationContext
» The BeanFactory The IoC container
» Introduction The Resource interface
» Built-in Resource implementations Resources
» The ResourceLoaderAware interface Resources
» Resources as dependencies Application contexts and Resource paths
» Introduction Validation, Data Binding, and Type Conversion
» Validation using Spring’s Validator interface
» Resolving codes to error messages Bean manipulation and the BeanWrapper
» Spring Type Conversion Validation, Data Binding, and Type Conversion
» Spring Field Formatting Validation, Data Binding, and Type Conversion
» Configuring a global date time format
» Spring Validation Validation, Data Binding, and Type Conversion
» Introduction Feature Overview Spring Expression Language SpEL
» Expression Evaluation using Spring’s Expression Interface
» Expression support for defining bean definitions
» Language Reference Spring Expression Language SpEL
» 3e0 4 .getValueDouble. 4e0 2 .getValueDouble.
» Classes used in the examples
» Introduction Aspect Oriented Programming with Spring
» Schema-based AOP support Aspect Oriented Programming with Spring
» y.service.DefaultFooService y.SimpleProfiler aop:config
» Choosing which AOP declaration style to use
» Mixing aspect types Proxying mechanisms
» Introduction Pointcut API in Spring
» Advisor API in Spring Using the ProxyFactoryBean to create AOP proxies
» Concise proxy definitions Spring AOP APIs
» Creating AOP proxies programmatically with the ProxyFactory Manipulating advised objects
» Using the auto-proxy facility
» Using TargetSources Spring AOP APIs
» Mock Objects Unit Testing support Classes
» Overview Goals of Integration Testing
» JDBC Testing Support Annotations
» Spring TestContext Framework Integration Testing
» loginAction-ref = username = userPreferences-ref = theme =
» PetClinic Example Integration Testing
» Understanding the Spring Framework transaction abstraction
» Synchronizing resources with transactions
» Declarative transaction management Transaction Management
» y.service.DefaultFooService Transaction Management
» y.service.DefaultFooService y.SimpleProfiler y.service.DefaultFooService
» y.SimpleProfiler Transaction Management
» Programmatic transaction management Transaction Management
» Choosing between programmatic and declarative transaction management Transaction bound event
» Application server-specific integration Transaction Management
» Introduction Consistent exception hierarchy
» Annotations used for configuring DAO or Repository classes
» Introduction to Spring Framework JDBC
» Using the JDBC core classes to control basic JDBC processing and error handling
» Controlling database connections Data access with JDBC
» JDBC batch operations Data access with JDBC
» Simplifying JDBC operations with the SimpleJdbc classes
» Modeling JDBC operations as Java objects
» Common problems with parameter and data value handling
» Embedded database support Data access with JDBC
» Initializing a DataSource Data access with JDBC
» Introduction to ORM with Spring
» General ORM integration considerations
» Hibernate Object Relational Mapping ORM Data Access
» JDO Object Relational Mapping ORM Data Access
» Introduction Marshaller and Unmarshaller
» Using Marshaller and Unmarshaller
» XML Schema-based Configuration JAXB
» Castor Marshalling XML using OX Mappers
» XMLBeans JiBX Marshalling XML using OX Mappers
» XStream Marshalling XML using OX Mappers
» Introduction to Spring Web MVC framework
» The DispatcherServlet Web MVC framework
» Handler mappings Web MVC framework
» Resolving views Web MVC framework
» Using flash attributes Web MVC framework
» Building URIs Web MVC framework
» Using locales Web MVC framework
» Using themes Web MVC framework
» Spring’s multipart file upload support
» Handling exceptions Web MVC framework
» Web Security Convention over configuration support
» y.RegistrationController HTTP caching support
» Code-based Servlet container initialization
» Configuring Spring MVC Web MVC framework
» simpleDateFormat = Web MVC framework
» Introduction Thymeleaf Groovy Markup Templates
» Velocity FreeMarker View technologies
» Document views PDFExcel Property
» Feed Views JSON Mapping View
» Introduction Integrating with other web frameworks
» Common configuration Integrating with other web frameworks
» JavaServer Faces 1.2 Apache Struts 2.x
» Introduction Portlet MVC Framework
» The DispatcherPortlet Portlet MVC Framework
» The ViewRendererServlet Controllers Portlet MVC Framework
» Handler mappings Portlet MVC Framework
» Views and resolving them Multipart file upload support
» Handling exceptions Annotation-based controller configuration
» absolute-ordering absolute-ordering WebSocket API
» SockJS Fallback Options WebSocket Support
» STOMP Over WebSocket Messaging Architecture
» Introduction Controller method CORS configuration
» Global CORS configuration Advanced Customization
» Introduction Remoting and web services using Spring
» Using Hessian or Burlap to remotely call services via HTTP
» Exposing services using HTTP invokers
» Web services Remoting and web services using Spring
» JMS Remoting and web services using Spring
» Accessing RESTful services on the Client
» Introduction Accessing EJBs Enterprise JavaBeans EJB integration
» Introduction JMS Java Message Service
» Using Spring JMS JMS Java Message Service
» Sending a Message JMS Java Message Service
» Receiving a message JMS Java Message Service
» Support for JCA Message Endpoints
» Annotation-driven listener endpoints JMS Java Message Service
» JMS namespace support JMS Java Message Service
» Introduction Exporting your beans to JMX
» Controlling the management interface of your beans
» Controlling the ObjectNames for your beans
» Accessing MBeans via Proxies
» Introduction Configuring CCI JCA CCI
» Using Spring’s CCI access support
» Modeling CCI access as operation objects
» Using the JavaMail MimeMessageHelper
» Introduction The Spring TaskExecutor abstraction
» The Spring TaskScheduler abstraction
» Annotation Support for Scheduling and Asynchronous Execution
» The task namespace Task Execution and Scheduling
» Introduction A first example
» y.DefaultBookingService property Defining beans that are backed by dynamic languages
» y.DefaultBookingService property Dynamic language support
» Scenarios Dynamic language support
» Bits and bobs y.DefaultBookingService property
» Introduction Understanding the cache abstraction
» Declarative annotation-based caching Cache Abstraction
» JCache JSR-107 annotations Cache Abstraction
» Declarative XML-based caching y.service.DefaultBookService
» Configuring the cache storage name =
» Classic ORM usage Classic Spring Usage
» JMS Usage Classic Spring Usage
» Concise proxy definitions Classic Spring AOP Usage
» Using the autoproxy facility
» Using TargetSources Classic Spring AOP Usage
» Introduction XML Schema-based configuration
» Introduction Authoring the schema
» Coding a NamespaceHandler Extensible XML authoring
» BeanDefinitionParser Extensible XML authoring
» Registering the handler and the schema
» Using a custom extension in your Spring XML configuration Meatier examples
» Introduction The argument tag The bind tag
» The escapeBody tag The eval tag The hasBindErrors tag
» The htmlEscape tag The message tag
» The nestedPath tag The param tag The theme tag
» The transform tag The url tag
» Introduction The button tag The checkbox tag
» The checkboxes tag The errors tag
» The option tag The options tag
» The password tag The radiobutton tag
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