How to Refer to Static Fields within Spring XML Configuration

5 years ago by in How To, Spring

When configuring Spring through XML, you can use static fields in a similar way you use instances defined in the same XML or elsewhere. This is possible by using the util namespace as highlighted below.

<?xml version="1.0" encoding="UTF-8"?>
<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"
    xmlns:util="http://www.springframework.org/schema/util"
    xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.1.xsd http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util-3.1.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.1.xsd">

  <bean id="myObject" class="com.javacreed.examples.howto.spring.StaticInXml">
    <constructor-arg>
      <list>
        <util:constant static-field="com.javacreed.examples.howto.spring.MyFields.OBJECT_1" />
      </list>
    </constructor-arg>
  </bean>

</beans>

The above example makes use of Spring Framework 3.1.

Albert Attard

Albert Attard is a Java passionate and technical lead at a research group. You can find him on . Over the past years Albert worked on various Java projects including traditional server/client applications, modular applications, large data handling applications and concurrent data manipulation applications to name a few. He has a BSc degree from the University of London (Homepage) and an MSc Information Security with the same university. His MSc thesis (Book) received the 2012 SearchSecurity.co.UK award (Website).

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