CODEWITHSUNDEEP
spring
siva raman
siva raman

Reputation: 17

How to refer to the returned type

I want to create a spring bean as below.

  <bean id="qNameString" class="javax.xml.xpath.XPathConstants.STRING"/>

Here I want the reference to return type which is a QName but I understand the way I referred is wrong. Can someone please help on this.

Upvotes: 0

Views: 185

Answers (2)

mdma
mdma

Reputation: 57767

Spring can create a QName for you like this:

<bean id="qName" class="java.xml.namespace.QName">
   <constructor index="0" value="localpart"/>
   <constructor index="1" value="namespaceURI"/>
</bean>

Replace localpart and namespaceURI with the local name and namespace.

To reference a constant in a class, like javax.xml.xpath.XPathConstants.STRING

<bean id="qNameString" class="org.springframework.beans.factory.config.FieldRetrievingFactoryBean">
    <property name="targetField" value="javax.xml.xpath.XPathConstants.STRING"/>
</bean>

A shorter version is available with the util schema:

<util:constant static-field="java.xml.xpath.XPathConstants.STRING"/>

Apart from being shorter, the id of the bean will be java.xml.xpath.XPathConstants.STRING rather than qNameString.

See FieldRetrievingFactoryBean and The util schema

Upvotes: 0

skaffman
skaffman

Reputation: 403581

That won't work, because class="javax.xml.xpath.XPathConstants.STRING" makes no sense, since what you're referring to isn't a class.

You can refer to static fields using <util:constant>, as documented here:

<property name="...">
   <util:constant static-field="javax.xml.xpath.XPathConstants.STRING"/>
</property>

Upvotes: 1

Related Questions