Dozer issue while convert Object to Integer[]

[Abhishek Ransingh]

Hi Matt,
  In my case how can I covert from object to array? That is:
   my destination field is Array and my source is an object. how to do that conversion using Dozer?

<mapping>
<class-a>domain.report.ReportOptions</class-a>
<class-b>dto.report.ReportOptions</class-b>
                     <field>
                         …..
                     </field>
      </mapping>

My classes: domain.report.ReportOptions

@XmlRootElement
public class ReportOptions implements Serializable {

private Integer            groupIds;

private Integer            userIds;

// Respective Setter Getters

**************************************************************************************
dto.report.ReportOptions class:

@XmlRootElement(name = "reportOptions")
public class ReportOptions {

private GroupIdList              groupIds;

private UserIdList               userIds;

//Setters Getters for those fields

*******************************************************************

GroupIdList class:

@XmlRootElement(name = "groupIdList")
public class GroupIdList {

    private Set<GroupIdentifier> groupIds = new HashSet<GroupIdentifier>();

    /**
     * Add a group id
     *
     * @param groupId
     *            Group id to add
     */
    public void addGroup(GroupIdentifier groupId)
    {
        groupIds.add(groupId);
    }

    public Set<GroupIdentifier> getGroupIds()
    {
        return groupIds;
    }

    public void setGroupIds(Set<GroupIdentifier> groupIds)
    {
        this.groupIds = groupIds;
    }

************************************************************************
GroupIdentifier class:

public class GroupIdentifier extends ABC {

    public GroupIdentifier(String… components)
    {
        super(shiftPrefix("xyz", components));
    }

}

********************************************************************
ABC class:

public abstract class ABC implements Serializable {

private final String originalIdentifier;

// some other stuffs
// And no setter getter for this originalIdentifier.

So, how to use dozer in this case to convert from dto.report.ReportOptions to domain.report.ReportOptions?
Can you please help me out? I've tried a lot of ways. But after conversion, those two fields are coming null if I use type="One-way" or else the error is like :

MapId: null
  Type: null
  Source parent class: dto.report.ReportOptions
  Source field name: groupIds.groupIds
  Source field type: class java.util.HashSet
  Source field value:
  Dest parent class: domain.report.ReportOptions
  Dest field name: groupIds
  Dest field type: [Ljava.lang.Integer;
java.lang.IllegalArgumentException: array element type mismatch
at java.lang.reflect.Array.set(Native Method)
at org.dozer.util.CollectionUtils.convertListToArray(CollectionUtils.java:98)
at org.dozer.MappingProcessor.mapListToArray(MappingProcessor.java:637)
at org.dozer.MappingProcessor.mapSetToArray(MappingProcessor.java:785)
at org.dozer.MappingProcessor.mapCollection(MappingProcessor.java:499)
at org.dozer.MappingProcessor.mapOrRecurseObject(MappingProcessor.java:394)
at org.dozer.MappingProcessor.mapFromFieldMap(MappingProcessor.java:303)
at org.dozer.MappingProcessor.mapField(MappingProcessor.java:249)
at org.dozer.MappingProcessor.map(MappingProcessor.java:218)
at org.dozer.MappingProcessor.map(MappingProcessor.java:163)
at org.dozer.MappingProcessor.map(MappingProcessor.java:119)
at org.dozer.MappingProcessor.map(MappingProcessor.java:114)
at org.dozer.DozerBeanMapper.map(DozerBeanMapper.java:92)

My xml class goes here:
<?xml version="1.0" encoding="UTF-8"?>
<mappings xmlns="http://dozer.sourceforge.net" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://dozer.sourceforge.net
          http://dozer.sourceforge.net/schema/beanmapping.xsd">
<mappings>
<mapping>
<class-a>domain.report.ReportOptions</class-a>
<class-b>dto.report.ReportOptions</class-b>

<field>
<a>groupIds</a>
<b>groupIds.groupIds</b>
</field>
        </mapping>
</mappings>

[Abhishek Ransingh]

Can any body help me regarding this??