Spring Support selection of specific marshaller based on bound class [SPR-13457]

Dmitry Katsubo opened SPR-13457 and commented

I think someone can benefit from the following improvement. I would like to configure JAXB marshallers based on bound classes like that:

<mvc:annotation-driven>
    <mvc:message-converters>
        <bean class="org.springframework.http.converter.xml.CompoundMarshallingHttpMessageConverter">
            <constructor-arg>
                <array>
                    <bean class="org.springframework.oxm.jaxb.Jaxb2Marshaller">
                        <property name="marshallerProperties">
                            <map>
                                <entry key="com.sun.xml.bind.xmlHeaders" value="&lt;?xml-stylesheet type='text/xsl' href='../xsl/statistics-job.xsl'?&gt;" />
                                <entry key="#{T(javax.xml.bind.Marshaller).JAXB_FORMATTED_OUTPUT}" value="false" />
                            </map>
                        </property>
                        <property name="classesToBeBound">
                            <array>
                                <value>org.mycompany.statistics.model.JobStatistics</value>
                            </array>
                        </property>
                    </bean>
                    <bean class="org.springframework.oxm.jaxb.Jaxb2Marshaller">
                        <property name="marshallerProperties">
                            <map>
                                <entry key="com.sun.xml.bind.xmlHeaders" value="&lt;?xml-stylesheet type='text/xsl' href='../xsl/statistics-performance.xsl'?&gt;" />
                                <entry key="#{T(javax.xml.bind.Marshaller).JAXB_FORMATTED_OUTPUT}" value="true" />
                            </map>
                        </property>
                        <property name="classesToBeBound">
                            <array>
                                <value>org.mycompany.statistics.model.PerformanceStatistics</value>
                            </array>
                        </property>
                    </bean>
                </array>
            </constructor-arg>
        </bean>
    </mvc:message-converters>
</mvc:annotation-driven>

The best is that MarshallingHttpMessageConverter supports multiple marshallers/unmarshallers, but it could be a separate class (see [^CompoundMarshallingHttpMessageConverter.java]) that supports that.

P.S. I have expressed this idea in #15096, but decided to formulate it as a separate issue.

---

Affects: 4.1.7

Attachments: - CompoundMarshallingHttpMessageConverter.java (1.86 kB)

Issue Links: - #16357 Jaxb2Marshaller support unmarshalling by type