Move to multi-tier breaks spring data rest implementation - spring

Question

Folks, I'm hoping someone can help me with this. I had my spring data rest application working perfectly, when I had all the data, and repository objects in one package, as follows:
com.xxx.web
com.xxx.web.repository
com.xxx.web.repository.entity
All of the entity definitions were in the entity package, and the repositories in the repository package.
However, now that I've moved to a multi-tiered approach, and the data and repository in separate modules. I can't get spring data rest to work correctly, it constantly says that I have no qualifying bean of type accountTypeRepository (this seems to change from time to time, it could be userRepository for instance), and I'm not too sure why. I'm doing everything I was before - except that the package structure differs. The module structure now looks as follows:
com.xxx.data
com.xxx.repository
com.xxx.web
All of the entity classes (JPA) are stored in the data module e.g.
#Entity
public class AccountType implements Serializable {
private String name;
#Column(name = "acctype_name", nullable = false)
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
}
All the repository interfaces are stored in the repository module. e.g.
#RestResource
public interface AccountTypeRepository extends CrudRepository<AccountType, Long> {
public List<AccountType> findByName(String accountTypeName);
}
I've ensure that all the maven dependencies are correctly set up. The web module has a dependency on both the repository and data layer, and it references both in the ApplicationConfig:
#Configuration
#EnableAutoConfiguration
#ComponentScan(basePackages = {"com.xxx.web", "com.xxx.data", "com.xxx.repository"})
#EnableTransactionManagement
public class ApplicationConfig {
public static void main(String[] args) {
SpringApplication app = new SpringApplication(ApplicationConfig.class);
app.run(args);
}
#Bean
public RepositoryRestConfiguration restConfiguration() {
return new RepositoryRestConfiguration();
}
}
I have RestExporterWebInitialiser set up, and all is well there. Following is the stack trace of the error that I get, and any help would be greatly appreciated.
NOTE: I've tried adding the #Repository to the relevant repositories, with no luck
Exception in thread "main" org.springframework.context.ApplicationContextException: Unable to start embedded container; nested exception is org.springframework.boot.context.embedded.EmbeddedServletContainerException: Unable to start embedded Tomcat
at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.onRefresh(EmbeddedWebApplicationContext.java:135)
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:476)
at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.refresh(EmbeddedWebApplicationContext.java:120)
at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:691)
at org.springframework.boot.SpringApplication.run(SpringApplication.java:320)
at com.wraith.money.web.ApplicationConfig.main(ApplicationConfig.java:35)
Caused by: org.springframework.boot.context.embedded.EmbeddedServletContainerException: Unable to start embedded Tomcat
at org.springframework.boot.context.embedded.tomcat.TomcatEmbeddedServletContainer.initialize(TomcatEmbeddedServletContainer.java:100)
at org.springframework.boot.context.embedded.tomcat.TomcatEmbeddedServletContainer.<init>(TomcatEmbeddedServletContainer.java:74)
at org.springframework.boot.context.embedded.tomcat.TomcatEmbeddedServletContainerFactory.getTomcatEmbeddedServletContainer(TomcatEmbeddedServletContainerFactory.java:289)
at org.springframework.boot.context.embedded.tomcat.TomcatEmbeddedServletContainerFactory.getEmbeddedServletContainer(TomcatEmbeddedServletContainerFactory.java:146)
at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.createEmbeddedServletContainer(EmbeddedWebApplicationContext.java:159)
at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.onRefresh(EmbeddedWebApplicationContext.java:132)
... 5 more
Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'org.springframework.security.config.annotation.web.configuration.WebSecurityConfiguration': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire method: public void org.springframework.security.config.annotation.web.configuration.WebSecurityConfiguration.setFilterChainProxySecurityConfigurer(org.springframework.security.config.annotation.ObjectPostProcessor,java.util.List) throws java.lang.Exception; nested exception is org.springframework.beans.factory.BeanExpressionException: Expression parsing failed; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'securityConfig': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: com.wraith.money.web.security.MoneyUserDetailsService com.wraith.money.web.security.SecurityConfig.moneyUserDetailsService; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'moneyUserDetailsService': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: private com.wraith.money.repository.UsersRepository com.wraith.money.web.security.MoneyUserDetailsService.usersRepository; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type [com.wraith.money.repository.UsersRepository] found for dependency: expected at least 1 bean which qualifies as autowire candidate for this dependency. Dependency annotations: {#org.springframework.beans.factory.annotation.Autowired(required=true)}
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:292)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1185)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:537)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:475)
at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:302)
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:228)
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:298)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:193)
at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:370)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateUsingFactoryMethod(AbstractAutowireCapableBeanFactory.java:1094)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:989)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:504)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:475)
at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:302)
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:228)
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:298)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:198)
at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.getOrderedBeansOfType(EmbeddedWebApplicationContext.java:367)
at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.getServletContextInitializerBeans(EmbeddedWebApplicationContext.java:268)
at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext$1.onStartup(EmbeddedWebApplicationContext.java:213)
at org.springframework.boot.context.embedded.tomcat.ServletContextInitializerLifecycleListener.lifecycleEvent(ServletContextInitializerLifecycleListener.java:64)
at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:117)
at org.apache.catalina.util.LifecycleBase.fireLifecycleEvent(LifecycleBase.java:90)
at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5355)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1559)
at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1549)
at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:334)
at java.util.concurrent.FutureTask.run(FutureTask.java:166)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603)
at java.lang.Thread.run(Thread.java:722)
Caused by: org.springframework.beans.factory.BeanCreationException: Could not autowire method: public void org.springframework.security.config.annotation.web.configuration.WebSecurityConfiguration.setFilterChainProxySecurityConfigurer(org.springframework.security.config.annotation.ObjectPostProcessor,java.util.List) throws java.lang.Exception; nested exception is org.springframework.beans.factory.BeanExpressionException: Expression parsing failed; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'securityConfig': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: com.wraith.money.web.security.MoneyUserDetailsService com.wraith.money.web.security.SecurityConfig.moneyUserDetailsService; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'moneyUserDetailsService': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: private com.wraith.money.repository.UsersRepository com.wraith.money.web.security.MoneyUserDetailsService.usersRepository; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type [com.wraith.money.repository.UsersRepository] found for dependency: expected at least 1 bean which qualifies as autowire candidate for this dependency. Dependency annotations: {#org.springframework.beans.factory.annotation.Autowired(required=true)}
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredMethodElement.inject(AutowiredAnnotationBeanPostProcessor.java:596)
at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:87)
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:289)
... 31 more
Caused by: org.springframework.beans.factory.BeanExpressionException: Expression parsing failed; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'securityConfig': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: com.wraith.money.web.security.MoneyUserDetailsService com.wraith.money.web.security.SecurityConfig.moneyUserDetailsService; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'moneyUserDetailsService': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: private com.wraith.money.repository.UsersRepository com.wraith.money.web.security.MoneyUserDetailsService.usersRepository; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type [com.wraith.money.repository.UsersRepository] found for dependency: expected at least 1 bean which qualifies as autowire candidate for this dependency. Dependency annotations: {#org.springframework.beans.factory.annotation.Autowired(required=true)}
at org.springframework.context.expression.StandardBeanExpressionResolver.evaluate(StandardBeanExpressionResolver.java:146)
at org.springframework.beans.factory.support.AbstractBeanFactory.evaluateBeanDefinitionString(AbstractBeanFactory.java:1362)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:873)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:858)
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredMethodElement.inject(AutowiredAnnotationBeanPostProcessor.java:553)
... 33 more
Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'securityConfig': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: com.wraith.money.web.security.MoneyUserDetailsService com.wraith.money.web.security.SecurityConfig.moneyUserDetailsService; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'moneyUserDetailsService': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: private com.wraith.money.repository.UsersRepository com.wraith.money.web.security.MoneyUserDetailsService.usersRepository; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type [com.wraith.money.repository.UsersRepository] found for dependency: expected at least 1 bean which qualifies as autowire candidate for this dependency. Dependency annotations: {#org.springframework.beans.factory.annotation.Autowired(required=true)}
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:292)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1185)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:537)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:475)
at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:302)
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:228)
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:298)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:198)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.getBeansOfType(DefaultListableBeanFactory.java:470)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.getBeansOfType(DefaultListableBeanFactory.java:459)
at org.springframework.security.config.annotation.web.configuration.AutowiredWebSecurityConfigurersIgnoreParents.getWebSecurityConfigurers(AutowiredWebSecurityConfigurersIgnoreParents.java:52)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:601)
at org.springframework.expression.spel.support.ReflectiveMethodExecutor.execute(ReflectiveMethodExecutor.java:63)
at org.springframework.expression.spel.ast.MethodReference.getValueInternal(MethodReference.java:122)
at org.springframework.expression.spel.ast.MethodReference.access$000(MethodReference.java:44)
at org.springframework.expression.spel.ast.MethodReference$MethodValueRef.getValue(MethodReference.java:258)
at org.springframework.expression.spel.ast.CompoundExpression.getValueInternal(CompoundExpression.java:84)
at org.springframework.expression.spel.ast.SpelNodeImpl.getValue(SpelNodeImpl.java:103)
at org.springframework.expression.spel.standard.SpelExpression.getValue(SpelExpression.java:94)
at org.springframework.context.expression.StandardBeanExpressionResolver.evaluate(StandardBeanExpressionResolver.java:143)
... 37 more
Caused by: org.springframework.beans.factory.BeanCreationException: Could not autowire field: com.wraith.money.web.security.MoneyUserDetailsService com.wraith.money.web.security.SecurityConfig.moneyUserDetailsService; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'moneyUserDetailsService': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: private com.wraith.money.repository.UsersRepository com.wraith.money.web.security.MoneyUserDetailsService.usersRepository; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type [com.wraith.money.repository.UsersRepository] found for dependency: expected at least 1 bean which qualifies as autowire candidate for this dependency. Dependency annotations: {#org.springframework.beans.factory.annotation.Autowired(required=true)}
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:508)
at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:87)
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:289)
... 59 more
Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'moneyUserDetailsService': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: private com.wraith.money.repository.UsersRepository com.wraith.money.web.security.MoneyUserDetailsService.usersRepository; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type [com.wraith.money.repository.UsersRepository] found for dependency: expected at least 1 bean which qualifies as autowire candidate for this dependency. Dependency annotations: {#org.springframework.beans.factory.annotation.Autowired(required=true)}
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:292)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1185)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:537)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:475)
at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:302)
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:228)
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:298)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:193)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.findAutowireCandidates(DefaultListableBeanFactory.java:1017)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:960)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:858)
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:480)
... 61 more
Caused by: org.springframework.beans.factory.BeanCreationException: Could not autowire field: private com.wraith.money.repository.UsersRepository com.wraith.money.web.security.MoneyUserDetailsService.usersRepository; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type [com.wraith.money.repository.UsersRepository] found for dependency: expected at least 1 bean which qualifies as autowire candidate for this dependency. Dependency annotations: {#org.springframework.beans.factory.annotation.Autowired(required=true)}
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:508)
at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:87)
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:289)
... 72 more
Caused by: org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type [com.wraith.money.repository.UsersRepository] found for dependency: expected at least 1 bean which qualifies as autowire candidate for this dependency. Dependency annotations: {#org.springframework.beans.factory.annotation.Autowired(required=true)}
at org.springframework.beans.factory.support.DefaultListableBeanFactory.raiseNoSuchBeanDefinitionException(DefaultListableBeanFactory.java:1103)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:963)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:858)
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:480)
... 74 more

Answer 1

Seems I've managed to answer my own question (with no small help from the related questions on the right) Kudos Stackoverflow. I had to refine my ApplicationConfig file to the following:
#Configuration
#EnableAutoConfiguration
#EnableJpaRepositories(basePackages = {"com.xxx.repository"})
#EntityScan(basePackages = {"com.xxx.data"})
#ComponentScan(basePackages = {"com.xxx.web"})
#EnableTransactionManagement
public class ApplicationConfig {
public static void main(String[] args) {
SpringApplication app = new SpringApplication(ApplicationConfig.class);
app.run(args);
}
}
I had to specify the #EnableJpaRepositories and #EntityScan annotations. Once I put these in there, everything worked perfectly.

Answer 2

Are you using Spring boot in your project?
The fact that you are using #EnableAutoConfiguration makes me think you are.
If you are using spring boot, IMHO, I think the following should be minimally sufficient to get your SDR application configured:
#Configuration
#EnableAutoConfiguration
#ComponentScan
#Import(RepositoryRestMvcConfiguration.class)
public class ApplicationConfig
{
public static void main(String[] args) {
SpringApplication app = new SpringApplication(ApplicationConfig.class);
app.run(args);
}
}
The above assumes that the ApplicationConfig class is in the base package "com.xxx" and all the other packages in your application are sub-packages of "com.xxx" which is what you stated in your original post.
On a personal note, I prefer my base package to have the naming convention com.mycompany.appname
Now, if you upgrade to the latest version of Spring boot (1.2.0 and newer), the above can simplified even more as follows:
#SpringBootApplication
#Import(RepositoryRestMvcConfiguration.class)
public class ApplicationConfig
{
public static void main(String[] args) {
SpringApplication app = new SpringApplication(ApplicationConfig.class);
app.run(args);
}
}
Additionally, if you need to manually override any of the SDR configuration, then remove the annotation :
#Import(RepositoryRestMvcConfiguration.class)
And instead the above ApplicationConfig class could extend RepositoryRestMvcConfiguration and override the relevant configure*() methods...
#SpringBootApplication
public class ApplicationConfig extends RepositoryRestMvcConfiguration
{
public static void main(String[] args) {
SpringApplication app = SpringApplication.run(ApplicationConfig.class, args);
}
#override
protected void configureRepositoryRestConfiguration(RepositoryRestConfiguration config)
{
... ... ...
config.setDefaultPageSize(50);
... ... ...
... ... ...
}
}
Hope this helps.
SGB