CREATE and DELETE operations in MI7.1 for PDA

Question

Hi,
We are developing a sample scenario for PDA in 7.1. Problem is we are able to implement GETLIST, GETDETAIL and MODIFY operations but not able to implement CREATE and DELETE operations. For GETLIST and GETDETAIL i have created queries. Modify is also simple (i am creating a form to edit and commiting data once i click on save). But to implement CREATE and DELETE we dont have any reference.
Regards,
Vinay

Answer 1

Hi,
Now i know the answer
There is a typed method on the service component model class for root node creation. Example for binding a new root instance to a context node:
wdContext.nodeCurrentEmployee().bind(Collections.singleton(model.createEmployeeSdoEmployee()));
where model is your webdynpro model.Employee is a context node model bounded to Employee model class.This node has to be manually created in context(and then can be context mapped and bound to elements in view)
wdContext.nodeCurrentEmployee().setLeadSelection(0);
Creating a child is done on the root itself, but persisting it is a two step process:
address = employeeRootNode.createNewAddresss(); <- this only creates the instance in memory
where employeeRootNode is the model object for which the child has to be created. If the element for which the child has to be created exists in context then it can be got by
wdContext.nodeEmployee().currentEmployeeElement.model()
employeeRootNode.addToAddresss(address);  <- this persists the new instance
wdContext.nodeCurrentAddress().bind(Collections.singleton(address));
wdContext.nodeCurrentAddress().setLeadSelection(0);
Delete of a root is also done on the sc model class:
model.removeEmployeeSdoEmployee(employeeRootNode);
Delete of a child is done one the root:
employeeRootNode.removeFromAddresss(address);
Hope this helps.
Regards,
Vinay
Edited by: Vinay TS on May 5, 2008 8:31 AM