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.Also see the topic, Sample code for creating an entity in a hierarchy and getting descendants and ancestors.