Dozer, how to map from java.util.Map to complex type? - getter

Question

I'd like to map from a java.util.Map to a complex type, let's call it Abc.
<mapping>
<class-a>java.util.Map</class-a>
<class-b bean-factory="xyz.AbcBeanFactory" factory-bean-id="AbcBeanFactory">
xyz.Abc
</class-b>
<field>
<a>Name</a>
<b>companyName</b>
</field>
</mapping>
With that I get this error (which is comprehensible):
org.dozer.MappingException: No read or write method found for field (Name) in class (interface java.util.Map)
Ok, how do I map from a java.util.Map that has an entry with the key 'Name'? Do I have to create a wrapper object that holds that java.util.Map and provide getters/setters for each entry in that map that I want to map?

Answer 1

You can find details for mapping a Map in the Dozer documentation. You need to provide a key not a plain field. Here is an example:
Class Abc:
package com.test;
public class Abc {
private String companyName;
private String companyAddress;
public String getCompanyName() {
return companyName;
}
public void setCompanyName(String companyName) {
this.companyName = companyName;
}
public String getCompanyAddress() {
return companyAddress;
}
public void setCompanyAddress(String companyAddress) {
this.companyAddress = companyAddress;
}
}
Mapping file:
<mapping>
<class-a>java.util.Map</class-a>
<class-b>com.test.Abc</class-b>
<field>
<a key="name">this</a>
<b>companyName</b>
</field>
<field>
<a key="address">this</a>
<b>companyAddress</b>
</field>
</mapping>
Test code:
Map<String, String> map = new HashMap<String, String>();
map.put("name", "Company Inc.");
map.put("address", "XYZ Commercial Street");
Abc destObject = dozerMapper.map(map, Abc.class);