Question

This is my configuration :

    <org.springframework.version>3.1.0.RELEASE</org.springframework.version>
    <spring.data.mongo.version>1.0.0.RC1</spring.data.mongo.version>

Is it possible to split from this 1 spring context file :

<mongo:mapping-converter base-package="my.package.converter">
    <mongo:custom-converters>
        <mongo:converter>
            <bean class="my.package.converter.ClassAbcReadConverter" />
        </mongo:converter>
        <mongo:converter>
            <bean class="my.package.converter.ClassAbcWriteConverter" />
        </mongo:converter>
        <mongo:converter>
            <bean class="my.package.converter.subpackage.ClassDefReadConverter" />
        </mongo:converter>
        <mongo:converter>
            <bean class="my.package.converter.subpackage.ClassDefWriteConverter" />
        </mongo:converter>
        <mongo:converter>
            <bean class="my.package.converter.subpackage.ClassGhiWriteConverter" />
        </mongo:converter>
        <mongo:converter>
            <bean class="my.package.converter.subpackage.ClassGhiReadConverter" />
        </mongo:converter>
    </mongo:custom-converters>
</mongo:mapping-converter>

into 2 spring context files (in different maven modules) like these below ?

file1-context.xml

<mongo:mapping-converter base-package="my.package.converter">
    <mongo:custom-converters>
        <mongo:converter>
            <bean class="my.package.converter.ClassAbcReadConverter" />
        </mongo:converter>
        <mongo:converter>
            <bean class="my.package.converter.ClassAbcWriteConverter" />
        </mongo:converter>
    </mongo:custom-converters>
</mongo:mapping-converter>

file2-context.xml

<mongo:mapping-converter base-package="my.package.converter">
    <mongo:custom-converters>
        <mongo:converter>
            <bean class="my.package.converter.subpackage.ClassDefReadConverter" />
        </mongo:converter>
        <mongo:converter>
            <bean class="my.package.converter.subpackage.ClassDefWriteConverter" />
        </mongo:converter>
        <mongo:converter>
            <bean class="my.package.converter.subpackage.ClassGhiWriteConverter" />
        </mongo:converter>
        <mongo:converter>
            <bean class="my.package.converter.subpackage.ClassGhiReadConverter" />
        </mongo:converter>
    </mongo:custom-converters>
</mongo:mapping-converter>

Is there any helpful attributes for ‘merging’ for mongo converters?

Answer 1

The custom-converters element actually has a base-package attribute as well which will trigger the listed packages to be scanned for Converter and GenericConverter implementations. The one you were using at the mapping-converter level is to pickup domain classes on startup. So you should be fine by simply removing the explicitly defined converter beans and adding the additional attribute.

<mongo:mapping-converter base-package="my.package.entities">
  <mongo:custom-converters base-package="my.package.converters" />
</mongo:mapping-converter>