[Building Sakai] using developer helper service in tool

[Nguni Phakela]

Hi All,

I have been able to use developerHelperService without a problem in
entities.

Now I would like to use it in my tool. I have in my spring-servlet.xml

<bean id="..." class="..." >
    <property name="developerHelperService
ref="org.sakaiproject.entitybroker.DeveloperHelperService" />
</bean>

In my service class I have  a private member
private DeveloperHelperService developerHelperService;

and a method
public void setDeveloperHelperService(DeveloperHelperService
developerHelperService) {
    this.developerHelperService = developerHelperService;
}

I also did take a look at this page for reference:

https://confluence.sakaiproject.org/display/SAKDEV/Entity+Provider+and+Broker+Usage

However, on building the app I'm receiving the error below. What could be
the problem?




Caused by: org.springframework.beans.factory.BeanCreationException: Error
creating bean with name
'org.wits.sakai.witesupport.service.ArchiveSitesService' defined in
ServletContext resource [/WEB-INF/spring-servlet.xml]: Initialization of
bean failed; nested exception is
org.springframework.beans.TypeMismatchException: Failed to convert property
value of type
[org.sakaiproject.entitybroker.impl.devhelper.DeveloperHelperServiceImpl]
to required type [org.sakaiproject.entitybroker.DeveloperHelperService] for
property 'developerHelperService'; nested exception is
java.lang.IllegalArgumentException: Cannot convert value of type
[org.sakaiproject.entitybroker.impl.devhelper.DeveloperHelperServiceImpl]
to required type [org.sakaiproject.entitybroker.DeveloperHelperService] for
property 'developerHelperService': no matching editors or conversion
strategy found
        at
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:480)
        at
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory$1.run(AbstractAutowireCapableBeanFactory.java:409)
        at java.security.AccessController.doPrivileged(Native Method)
        at
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:380)
        at
org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:264)
        at
org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222)
        at
org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:261)
        at
org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:185)
        at
org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:164)
        at
org.springframework.beans.factory.support.DefaultListableBeanFactory.findAutowireCandidates(DefaultListableBeanFactory.java:671)
        at
org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:610)
        at
org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredMethodElement.inject(AutowiredAnnotationBeanPostProcessor.java:499)
        ... 37 more
Caused by: org.springframework.beans.TypeMismatchException: Failed to
convert property value of type
[org.sakaiproject.entitybroker.impl.devhelper.DeveloperHelperServiceImpl]
to required type [org.sakaiproject.entitybroker.DeveloperHelperService] for
property 'developerHelperService'; nested exception is
java.lang.IllegalArgumentException: Cannot convert value of type
[org.sakaiproject.entitybroker.impl.devhelper.DeveloperHelperServiceImpl]
to required type [org.sakaiproject.entitybroker.DeveloperHelperService] for
property 'developerHelperService': no matching editors or conversion
strategy found
        at
org.springframework.beans.BeanWrapperImpl.convertForProperty(BeanWrapperImpl.java:391)
        at
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.convertForProperty(AbstractAutowireCapableBeanFactory.java:1289)
        at
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyPropertyValues(AbstractAutowireCapableBeanFactory.java:1250)
        at
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1010)
        at
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:472)
        ... 48 more
Caused by: java.lang.IllegalArgumentException: Cannot convert value of type
[org.sakaiproject.entitybroker.impl.devhelper.DeveloperHelperServiceImpl]
to required type [org.sakaiproject.entitybroker.DeveloperHelperService] for
property 'developerHelperService': no matching editors or conversion
strategy found
        at
org.springframework.beans.TypeConverterDelegate.convertIfNecessary(TypeConverterDelegate.java:231)
        at
org.springframework.beans.TypeConverterDelegate.convertIfNecessary(TypeConverterDelegate.java:138)
        at
org.springframework.beans.BeanWrapperImpl.convertForProperty(BeanWrapperImpl.java:386)


Kind Regards,
--
Nguni Phakela
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