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POUsing Spring Factory bean pattern - no bean return null?
 

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  1. POUsing Spring Factory bean pattern - no bean return null?
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    <p>I am using Factory pattern in SPRING like in this example <a href="http://kh-yiu.blogspot.co.il/2013/04/spring-implementing-factory-pattern.html" rel="nofollow">http://kh-yiu.blogspot.co.il/2013/04/spring-implementing-factory-pattern.html</a></p> <p>In case that there is no bean with specific name I get exception org.springframework.beans.factory.NoSuchBeanDefinitionException</p> <pre><code>org.springframework.beans.factory.NoSuchBeanDefinitionException: No bean named 'XXX' is defined at org.springframework.beans.factory.support.DefaultListableBeanFactory.getBeanDefinition(DefaultListableBeanFactory.java:549) at org.springframework.beans.factory.support.AbstractBeanFactory.getMergedLocalBeanDefinition(AbstractBeanFactory.java:1095) at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:277) at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:197) at org.springframework.beans.factory.config.ServiceLocatorFactoryBean$ServiceLocatorInvocationHandler.invokeServiceLocatorMethod(ServiceLocatorFactoryBean.java:367) at org.springframework.beans.factory.config.ServiceLocatorFactoryBean$ServiceLocatorInvocationHandler.invoke(ServiceLocatorFactoryBean.java:356) at com.sun.proxy.$Proxy24.createManualDepositProcess(Unknown Source) </code></pre> <p>I get exceptions in case I try to get bean that not defined, like printStrategyFactory.getStrategy("NO_DEF").print(doc);</p> <p>Is it possible in case that there is <strong>no bean - return null ?</strong> Thank you !</p>
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    1. USprilia
    1. USprilia
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    1. COYou can decide to return null. Use a try/catch to catch Spring's exception in your factory method.
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      1. POUsing Spring Factory bean pattern - no bean return null?
      1. USjalynn2
    2. COCan I overwrite the return function ?
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    3. CONo, I see in the example you reference that you are using Spring's `ServiceLocatorFactoryBean`. You cannot change it's behavior of throwing an exception when the lookup fails, although you can change the exception that is thrown. You need to surround the code calling the lookup with try/catch.
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      1. USjalynn2
 

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