Use the get(DataObject) method and the DescendantControl to show the children of an entity.
In this example, the request is to show all the children of OrgContainer Sales.
DataObject root = SDOHelper.createRootDataObject();
DataObject entity = SDOHelper.createEntityDataObject(root, null, DO_ENTITY);
entity.createDataObject(DO_IDENTIFIER).setString(PROP_UNIQUE_NAME,
"o=Sales,cn=users,dc=yourco,dc=com");
DataObject descCtrl = SDOHelper.createControlDataObject(root, null, DO_DESCENDANT_CONTROL);
// 0 means all descendants
descCtrl.setInt(PROP_LEVEL, 0);
descCtrl.getList(PROP_PROPERTIES).add("uid");
descCtrl.getList(PROP_PROPERTIES).add("cn");
descCtrl.getList(PROP_PROPERTIES).add("o");
descCtrl.getList(PROP_PROPERTIES).add("ou");
descCtrl.getList(PROP_PROPERTIES).add("manager");
root = service.get(root);
<?xml version="1.0" encoding="UTF-8"?>
<sdo:datagraph xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:sdo="commonj.sdo"
xmlns:wim="http://www.ibm.com/websphere/wim">
<wim:Root>
<wim:entities>
<wim:identifier uniqueName="o=Sales,cn=users,dc=yourco,dc=com"/>
</wim:entities>
<wim:controls xsi:type="wim:DescendantControl" level="0">
<wim:properties>uid</wim:properties>
<wim:properties>cn</wim:properties>
<wim:properties>o</wim:properties>
<wim:properties>ou</wim:properties>
<wim:properties>manager</wim:properties>
</wim:controls>
</wim:Root>
</sdo:datagraph>
<?xml version="1.0" encoding="UTF-8"?>
<sdo:datagraph xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:sdo="commonj.sdo"
xmlns:wim="http://www.ibm.com/websphere/wim">
<wim:Root>
<wim:entities xsi:type="wim:OrgContainer">
<wim:identifier externalName="o=Sales,cn=users,dc=yourco,dc=com"
repositoryId="LDAP1"
uniqueId="eab85abb-9d29-40f1-b502-36c051d3ee96"
uniqueName="o=Sales,cn=users,dc=yourco,dc=com"/>
<wim:children xsi:type="wim:OrgContainer">
<wim:identifier externalId="0dfcccf7-9fb9-4b25-a0f4-ff4b6b33068e"
externalName="ou=CA,o=Sales,cn=users,dc=yourco,dc=com"
repositoryId="LDAP1"
uniqueName="ou=CA,o=Sales,cn=users,dc=yourco,dc=com"/>
<wim:ou>CA</wim:ou>
</wim:children>
<wim:children xsi:type="wim:PersonAccount">
<wim:identifier externalId="e7db8c0e-d2b3-43fe-be14-1475125606f4"
externalName="uid=SalesPerson1,ou=CA,o=Sales,cn=users,dc=yourco,dc=com"
repositoryId="LDAP1"
uniqueName="uid=SalesPerson1,ou=CA,o=Sales,cn=users,dc=yourco,dc=com"/>
<wim:uid>SalesPerson1</wim:uid>
<wim:cn>Sales Person1</wim:cn>
<wim:manager externalId="5e846c20-a1b4-4bfc-bce2-1f841d762f9a"
externalName="uid=SalesManager,cn=users,dc=yourco,dc=com"
repositoryId="LDAP1"
uniqueName="uid=SalesManager,cn=users,dc=yourco,dc=com"/>
</wim:children>
<wim:children xsi:type="wim:OrgContainer">
<wim:identifier externalId="70dd624d-6eb0-4fdf-8338-3ae4090b1c6f"
externalName="ou=US,o=Sales,cn=users,dc=yourco,dc=com"
repositoryId="LDAP1"
uniqueName="ou=US,o=Sales,cn=users,dc=yourco,dc=com"/>
<wim:ou>US</wim:ou>
</wim:children>
<wim:children xsi:type="wim:PersonAccount">
<wim:identifier externalId="13ae346f-1e4c-40cd-8896-1c7f0b2b3079"
externalName="uid=SalesPerson3,ou=US,o=Sales,cn=users,dc=yourco,dc=com"
repositoryId="LDAP1"
uniqueName="uid=SalesPerson3,ou=US,o=Sales,cn=users,dc=yourco,dc=com"/>
<wim:uid>SalesPerson3</wim:uid>
<wim:cn>Sales Person3</wim:cn>
<wim:manager externalId="5e846c20-a1b4-4bfc-bce2-1f841d762f9a"
externalName="uid=SalesManager,cn=users,dc=yourco,dc=com"
repositoryId="LDAP1"
uniqueName="uid=SalesManager,cn=users,dc=yourco,dc=com"/>
</wim:children>
<wim:children xsi:type="wim:PersonAccount">
<wim:identifier externalId="a2d1be42-212e-44f0-8396-0bfc2d7d346d"
externalName="uid=SalesPerson4,ou=US,o=Sales,cn=users,dc=yourco,dc=com"
repositoryId="LDAP1"
uniqueName="uid=SalesPerson4,ou=US,o=Sales,cn=users,dc=yourco,dc=com"/>
<wim:uid>SalesPerson4</wim:uid>
<wim:cn>Sales Person4</wim:cn>
</wim:children>
<wim:children xsi:type="wim:PersonAccount">
<wim:identifier externalId="a3f9e8a1-117a-4252-840f-6d0cb079a7fb"
externalName="uid=SalesPerson2,ou=CA,o=Sales,cn=users,dc=yourco,dc=com"
repositoryId="LDAP1"
uniqueName="uid=SalesPerson2,ou=CA,o=Sales,cn=users,dc=yourco,dc=com"/>
<wim:uid>SalesPerson2</wim:uid>
<wim:cn>Sales Person2</wim:cn>
<wim:manager externalId="5e846c20-a1b4-4bfc-bce2-1f841d762f9a"
externalName="uid=SalesManager,cn=users,dc=yourco,dc=com"
repositoryId="LDAP1"
uniqueName="uid=SalesManager,cn=users,dc=yourco,dc=com"/>
</wim:children>
</wim:entities>
</wim:Root>
</sdo:datagraph>
OrganizationUnit CA and its children SalesPerson1 and
SalesPerson2, OrganizationUnit US and its children, SalesPerson3 and
SalesPerson4, and OrganizationUnit Europe are returned as the descendants
of OrgContainer Sales.