CODEWITHSUNDEEP
javadozer
mico
mico

Reputation: 12748

Dozer: get first value on a collection mapped to single value in destination

I am mapping two DTO objects through Dozer mapper. I am interested in choosing one value from list and map it to a single field in the destination file.

Is it possible to use mapping like this:

<field>
   <a>someList[0]</a>
   <b>someVariable</b>
</field>

It seems that b part can have a list[1].value type of approach, but I cannot get it to work when brackets are on a side. Where am I making it wrong?

Upvotes: 5

Views: 4753

Answers (2)

GingerHead
GingerHead

Reputation: 8230

Use the following mapping: 

<mapping map-id="collectionMapping" type="one-way">
    <class-a>java.util.Collection</class-a>
    <class-b>java.util.Collection</class-b>
    <field>
        <a>this</a>
        <b set-method="add(java.lang.Object)" type="iterate">anything</b>
        <b-hint>your destination object type</b-hint>
    </field>
</mapping>

Upvotes: 1

mico
mico

Reputation: 12748

Actually, you don't need more than suggested

<field>
    <a>someList[0]</a>
    <b>someVariable</b>
</field>

structure to achieve this. I had the problem other where: I did not call the correct map() function for that mapping on my code. I had several mappings and the map() call to this specific one was missing.

Upvotes: 3

Related Questions