How to write pojo in Mongodb?

following is my pu.xmlMAGIC_INFO${magic_info.partitions}${magic_info.backups_per_partition}group-by-replication-bulk e.g if i want to persist the following pojo/entity in mongodb then how to configure the pu.xml @Entity @Table(name="ifs_actlog") @SpaceClass public class ActivityLog implements java.io.Serializable { }