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Dozer mapping inner classes

Asked 2010-11-12T22:07:56.223
9

I need to map class A into class C using dozer framework.

public class A {

private String fielda1;
private String fielda2;

public String getFielda1() {
    return fielda1;
}
public void setFielda1(String fielda1) {
    this.fielda1 = fielda1;
}
public String getFielda2() {
    return fielda2;
}
public void setFielda2(String fielda2) {
    this.fielda2 = fielda2;
}
}


public class B {
private List<C> cList;

public List<C> getcList() {
    return cList;
}
public void setcList(List<C> cList) {
    this.cList = cList;
}

public static class C {
    private String fieldc1;
    private String fieldc2;

    public String getFieldc1() {
        return fieldc1;
    }
    public void setFieldc1(String fieldc1) {
        this.fieldc1 = fieldc1;
    }
    public String getFieldc2() {
        return fieldc2;
    }
    public void setFieldc2(String fieldc2) {
        this.fieldc2 = fieldc2;
    }
}
}

XML mapping file:

<mapping wildcard="false" map-null="false" map-id="test">
    <class-a>test.A</class-a>
    <class-b>test.B.C</class-b>
    <field>
        <a>fielda1</a>
        <b>fieldc1</b>
    </field>
    <field>
        <a>fielda1</a>
        <b>fieldc2</b>
    </field>
</mapping>

When i try to map these classes i got following exception:

org.dozer.MappingException: java.lang.ClassNotFoundException: test.B.C
at org.dozer.util.MappingUtils.throwMappingException(MappingUtils.java:88)
at org.dozer.util.DefaultClassLoader.loadClass(DefaultClassLoader.java:33)

It seams that dozer is not capable to handle this situation and uses class B as a package name. This issue can be resolved using custom converters. I just want to know is there any trick that could be used to convert these classes using just XML configuration ?

java dozer
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1 Answer

26

Try using test.B$C like in the following example:

<mapping wildcard="false" map-null="false" map-id="test">
    <class-a>test.A</class-a>
    <class-b>test.B$C</class-b>
    <field>
        <a>fielda1</a>
        <b>fieldc1</b>
    </field>
    <field>
        <a>fielda2</a>
        <b>fieldc2</b>
    </field>
</mapping>

Also note that I changed the second field from fielda1 to fielda2, it appeared to be a typo in your example.

Note: Because you set map-id="test" you must include mapId when you call map, like in:

B.C destObject = mapper.map(a, B.C.class, "test");

I tested and this is working correctly:

A.java

package com.test;

public class A {

    private String fielda1;
    private String fielda2;

    public String getFielda1() {
        return fielda1;
    }

    public void setFielda1(String fielda1) {
        this.fielda1 = fielda1;
    }

    public String getFielda2() {
        return fielda2;
    }

    public void setFielda2(String fielda2) {
        this.fielda2 = fielda2;
    }
}

B.java

package com.test;

import java.util.List;

public class B {

    private List<C> cList;

    public List<C> getcList() {
        return cList;
    }

    public void setcList(List<C> cList) {
        this.cList = cList;
    }

    public static class C {

        private String fieldc1;
        private String fieldc2;

        public String getFieldc1() {
            return fieldc1;
        }

        public void setFieldc1(String fieldc1) {
            this.fieldc1 = fieldc1;
        }

        public String getFieldc2() {
            return fieldc2;
        }

        public void setFieldc2(
answered 2010-11-12T22:22:33.890

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