CODEWITHSUNDEEP
springspring-el
Bax
Bax

Reputation: 4476

Could I use Spring EL inside bean id attribute?

Could I use SpEL inside the id attribute of a bean ?

e.g : <bean id="#{T(com.om.m).PublicStaticFinalStringProperty}"...

This way it's not working, what should I change or it's not possible ?

Upvotes: 4

Views: 2354

Answers (1)

micfra
micfra

Reputation: 2820

Weird but possible (sample uses spring 3.1). Different versions working:

<?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.xsd
            http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd
            http://www.springframework.org/schema/util    http://www.springframework.org/schema/util/spring-util.xsd
       ">

    <context:property-placeholder properties-ref="myProps"/>

    <util:properties id="myProps" >
        <prop key="x.y.z">possible</prop>
    </util:properties>

    <bean id="testBean" class="Bean">
        <property name="value" value="weird"/>
    </bean>

    <bean id="${x.y.z}" class="Bean">
        <property name="value" value="but"/>
    </bean>

    <bean id="#{testBean.value}" class="Bean">
        <property name="value" value="${x.y.z}"/>
    </bean>

</beans>

Bean.java

public class Bean implements InitializingBean {

    String value;

    public void setValue(String value) {
        this.value = value;
    }

    public void afterPropertiesSet() throws Exception {
        System.out.println(value);
    }

}

Upvotes: 2

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