problem about autowired-Collection of common programming errors

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  user1051218
  java spring autowired
  If I have two classes like: Class A {public String importantValue = “stringvalue”;@Autowirepublic B b; }@Component @Scope(“prototype”); Class B {// This should be set automatically// from IOC Container upon injection.public String importantValueFromA; }Is this even possible? As soon as B class has been injected to A it should automatically set the value in B.
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  mjaskowski
  spring ioc-container autowired
  On Spring @Autowired usage question most of the people answer they prefer not using configuration files, if possible. It seems like a good answer at the first glance.However, once you have quite a big application which uses Spring IoC and autowires all the stuff using annotations @Autowired, @Service, etc. you must hit this problem: you no longer are able to keep track of your bean dependencies. How do you deal with that? Using SpringSource Tool Suite one can create graphs of dependencies on the
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  Tomasz Nurkiewicz
  java spring inversion-of-control autowired
  Let’s assume I have an annotated bean property setter like this:public class Foo {…@Autowired public void setBar(Bar bar) {… }The Springframework will lookup the matching Bar property as usual. However, I’d like to intercept the default bean resolving process and add a little bit of “magic” myself. I’d like to introduce a resolver like this:public interface SomeResolverInterface<T> {public T resolve(Class<T> beanClass); }public class BarResolver implements SomeResolverInterface&l
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  Grant Cermak
  spring obfuscation proguard autowired
  I have a library Common.License which I am obfuscating with Proguard: <plugin><groupId>com.pyx4me</groupId><artifactId>proguard-maven-plugin</artifactId><executions><execution><phase>package</phase><goals><goal>proguard</goal></goals></execution></executions><configuration><obfuscate>true</obfuscate><options><option>-dontoptimize</option><option>-renamesourcefileat
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  fastcodejava
  java spring dependency-injection annotations autowired
  Which annotation, @Resource (jsr250) or @Autowired (Spring specific) should I be using when using DI?I have successfully used both in the past, @Resource(name=”blah”) and @Autowired @Qualifier(“blah”)my instinct is to stick with the @Resource tag since it’s been ratified by the jsr people… anyone have strong thoughts on this?(apologies if this question has been asked before, I couldn’t find it…)
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  Bozho
  java spring autowired
  Is there any downside to putting a ton of @Autowired beans in a super class which don’t get used in that class but instead are used in the subclasses that extend the super class?
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  Vikdor
  spring autowired
  I’ve started to build some kind of a CMS and I’m stuck over one idea. The description is:I have standard MVC Controller (Home) in which I’m downoading modules settings which will be set in this Controller.The response is, that I have to implement module with name “HPModule”.So I’m trying to load this module by Class.forName(“com.app.something.HPModule”); and then call method init();My HPModule is:public class HPModule {@Resource(name = “hpModuleService”)private HPModuleService hpModuleService;pu
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  Rythmic
  java spring autowired
  I realize this should be really basic but I haven’t found a second step example after HelloworldSo what I have is:spring config xml called spring-beans.xml:<beans xmlns=”http://www.springframework.org/schema/beans”xmlns:xsi=”http://www.w3.org/2001/XMLSchema-instance”xmlns:context=”http://www.springframework.org/schema/context”xsi:schemaLocation=”http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.5.xsd http://www.springframework.org/schema/co
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  Andy White
  java spring autowired
  What are the pros and cons of using @Autowired in a class that will be wired up by Spring? Just to clarify, I’m talking specifically about the @Autowired annotation, not auto-wiring in XML.I probably just don’t understand it, but to me it almost seems like an anti-pattern – your classes start to become aware that they are tied to a DI framework, rather than just being POJOs. Maybe I’m a glutton for punishment, but I like having the external XML config for beans, and I like to have explicit wir
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  Alexandr
  java spring spring-mvc configuration autowired
  When request is processed by spring controller, the service is not wired:@Controller @RequestMapping(value = “/login”) public class LoginController {@Injectprivate AccountService accountService;@RequestMapping(method = RequestMethod.POST)public String handleLogin(HttpServletRequest request, HttpSession session){try {…//Next line throws NullPointerException, this.accountService is nullAccount account = this.accountService.login(username, password);} catch (RuntimeException e) {request.setAttrib
• 
  skaffman
  java unit-testing spring autowired
  I am trying to speed up the Integration tests in our environment. All our classes are autowired. In our applicationContext.xml file we have defined the following:<context:annotation-config/> <context:component-scan base-package=”com.mycompany.framework”/> <context:component-scan base-package=”com.mycompany.service”/> …additional directoriesI have noticed that Spring is scanning all directories indicated above and then iterates over each bean and caches the properties of eac
• 
  Jesse
  java spring autowired
  I defined a bean in spring context file ‘applicationContext.xml’ like below :<bean id=”daoBean” class=”org.mockito.Mockito” factory-method=”mock”><constructor-arg value=”com.xxx.DAOImpl” /> </bean> In my service class (ServiceImpl), I am using this bean like below:@Component(“serviceImpl”)public class ServiceImpl{// other code here@Autowiredprivate transient DAOImpl daoBean;// other code here}My service class is being accessed from my JUnit test class.@RunWith(SpringJUnit4Class
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  Johan Sjöberg
  java spring aspectj spring-aop autowired
  How can I get an already existing object spring managed? I would like to hook it up to Springs AoP capabilities using aspectj. I know this to be a challenge since Spring AoP uses dynamic proxies which probably are created along with the object. Why do I need this?I have a third-party class which takes a constructor argument which is only known in runtime, hence it seems I cannot add it to my applicationContext or use springs FactoryBean interface for construction. Is there any other way?I’ve al
• 
  Randbedingung
  spring javabeans autowired
  I have following class:@Component(“persistenceJPAConfig”) public class JPAPersistenceConfig {…}Using Spring I am able to “inject” the class by adding a method with @Autowired-annotation in my target Class where I want to use JPAPersistenceConfig – Class. I works fine, the class itself is fine.The Problem is that I have to create a Class at runtime (writing source code and compile it) that has to use the bean as well.I added the autowired-methods too, but it keeps to be [email protected]
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  Tunguska
  java spring spring-mvc javabeans autowired
  I try to initialize my Hibernate DAO instances dynamically.What is given:Generic DAO (GenericDaoImpl<T,PK extends Serializable>) DAO Factory, which should create a Generic DAO instance for each model class in package (I try something with reflection) Beans seem to be created, but as soon as I want to autowire I receive a Exception Spring “3.2.4.RELEASE” EnvironmentGenericDaoFactory@Configurable public class GenericDaoFactory {@Autowired private AutowireCapableBeanFactory beanFactory;@Autow
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  r15habh
  java spring autowired
  I have a class B which implements W interface. It has a default implementation of W’s method. class C and D override default implementation for which they need a service whose bean is instantiated by spring. String a and b comes from user and hence there is no way I can create a bean of B/C/D in advance. So I have a factory which creates a new object based on user parameters (it will create B/C/D based on parameters). Is there any clean way I can use service beans(aa/bb/cc/dd etc.) from inside
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  Stefan Kendall
  tomcat grails groovy junit autowired
  I have a non-service class which is defined as such:class A{B bA( B b ){ this.b = b } }where B is a grails service. In my unit tests, I tried this:A a = new A( new B() );For some reason, however, b never gets set, and the variable b [local, the argument to the mehod] isn’t even visible in Intelli-J’s debugger when running the test. That is, I can rename the argument to service, and the debugger shows it as undefined.When I try to start a server, I get Initialization of bean failed; nested except

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