java - How to customize the SpEL parser in Spring? -


spel excellent feature provided spring, sometimes, little tedious use spel call class constructors, example

<bean id="plainpojo" class="mypackage.pojo">     <property name="date" value="#{new java.util.date()}"/> </bean> 

in order initiate date instance, have include fully-qualified name of date class. there way can define customize spel parser don't have write fully-qualified name of class want use?

by way, ok write spel this:

<bean id="plainpojo" class="mypackage.pojo">     <property name="name" value="#{new string('myname')}"/> </bean> 

the string class in java.lang package, think default spel parser spring framework used has include path java.lang.

when using spel programmatically, can inject standardtypelocator evaluation context, after adding packages standardtypelocator using registerimport(). (that's how when using spel in spring integration flows). make more convenient when using custom classes in spel expressions.

we use technique in twitter endpoints.

same thing when using custom functions - have registered evaluation context.

you can customize evaluation context used when wiring beans (#{...}) injecting custom beanexpressionresolver application context's bean factory. subclass standardbeanexpressionresolver , override customizeevaluationcontext() before refresh() ing context.


Comments

Popular posts from this blog

php - Submit Form Data without Reloading page -

linux - Rails running on virtual machine in Windows -

php - $params->set Array between square bracket -