4.0

hasChildrenInRelation Operation
The hasChildrenInRelation operation checks whether a given relation type has any children.
In some cases, objects are most easily located through their relationships with other objects. You can obtain all
the objects that relate to another object by a given relation by calling the findRelation operation on that object.
The findRelation operation finds only the relatives of a known object. The hasChildrenInRelation operation
checks for the presence of objects that present a given relation property. hasChildrenInRelation checks for
the presence of objects that are children of other objects and are related to their parents by a given relation
type. For example, a snapshot of a virtual machine is a child of the original virtual machine. Checking for all
virtual machines that are children of other virtual machines enables you to identify all snapshots.
Knowing how a child is related to its parent is useful if you develop tree viewers to view the objects in the
library. The hasChildrenInRelation operation is declared as follows.
public int hasChildrenInRelation(String parentType, String parentId, String relation, String
username, String password);
Type Value Description
String
parentType
Type of parent object. You can narrow the search by specifying the parent type, which limits the
result to children related by the given relation to parents of a given parent type.
This value can be null, in which case hasChildrenInRelation checks for child objects related by
the specified relation type to all types of parent.
String
parentId
ID of a particular parent object.
Specifying the parentId allows you to check for children related by a given relation to a particular
parent. This check is useful if a particular parent has large numbers of children that are related to
it by different relation types. The findRelation operation returns all of that parent's children,
regardless of the relation type.hasChildrenInRelation checks for the presence of only the
children related by the desired relation type.
This value can be null if you call hasChildrenInRelation on the root object of the hierarchy of
objects.
String
relation
The type of relation by which children are related to their parents.
Relation types are specified in the vso.xml file for each plug-in.
String
username
Orchestrator user name.
String
password
Orchestrator password.
Return Value
Returns one of the following values:
1
Yes, children of the specified relation type are present
-1
No, children of the specified relation type are not present
0
Unknown, or an input parameter is invalid
Related Information
For more information, see “findRelation Operation,” on page 271.
hasRights Operation
The hasRights operation checks whether a user has permissions to view, edit, and run workflows.
To check the rights that you have on a workflow, you must have permission to view that workflow. If you
have only edit or run permission on a workflow, you cannot view what rights you have on this workflow, and
hasRights returns False.
vCenter Orchestrator Developer's Guide
278 VMware, Inc.