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RTC Server API code to find the result of a query

Vivek Bandhu (636) | asked Sep 14 '17, 5:53 a.m.

 I have to develop a plugin on RTC which will run when a query on a project area and store the result in a customized attributes. 

for example -  query as - 

Major Defect = Number of Defects wich respect those conditions for the currunt milestone : <o:p> </o:p>

·         Subtype :  external AND <o:p> </o:p>

·         Severity : Major AND <o:p> </o:p>

·         Status IS NOT Info Requested or Reject AND <o:p> </o:p>

Query Name : Open Defect – Result : 42 defects. Get the “42” and put it on a custom attribute .

How to do it .

3 answers

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Emiliano Iannetti (114) | answered May 07 '20, 7:20 a.m.

 Hi, thanks and sorry for a question, I try to execute your code, as well as that of Ralph that I have seen on other posts, but unfortunately I always get this error:

Exception checking precondition. An unhandled exception occurred during "Prohibit Save (ASISE)".
Argument must be an instance of IAuditableHandle.
Now do not notice you have details but it is a CustomAdvisor that gives the problem as if I had not instantiated something correctly but what ?? Thanks.

Ralph Schoon commented May 11 '20, 3:25 a.m.

The classes used in the API, that represent objects, can be either basic stuff such as String, or it can be more complex stuff. Usually these are represented by a handle e.g. IWorkitemHandle. Things that get traced in history are usually implementing IAuditableHandle. So somewhere in your code you pass a wrong class/interface. 

Emiliano Iannetti commented May 11 '20, 3:28 a.m. | edited May 11 '20, 3:50 a.m.

 Good morning, and I imagined it was something similar, in fact I used the plannedFor as a parameter convinced that it was right, but using a string that replicates the value of the PlannedFor I managed to run the query. Thanks.

Ralph Schoon commented May 11 '20, 3:51 a.m.
Good it is working for you now. 

Please ask your own question next time to not pollute existing content. Also please understand the difference between a comment and an answer. 

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Luca Martinucci (1.0k294112) | answered Sep 22 '17, 3:50 a.m.

I have done similiar things several times.
This is a code snippet to build and execute a query on work items:

IQueryableAttributeFactory queryAttrFactory = QueryableAttributes.getFactory(IWorkItem.ITEM_TYPE);
IQueryableAttribute projectAreaAttribute = queryAttrFactory.findAttribute(projectAreaHandle,IWorkItem.PROJECT_AREA_PROPERTY, utility.workItemCommon.getAuditableCommon(), utility.monitor);
AttributeExpression projectAreaExpression = new AttributeExpression(projectAreaAttribute, AttributeOperation.EQUALS, projectAreaHandle);
IQueryableAttribute typeAttribute = queryAttrFactory.findAttribute(projectAreaHandle,IWorkItem.TYPE_PROPERTY, utility.workItemCommon.getAuditableCommon(), utility.monitor);
AttributeExpression typeExpression = new AttributeExpression(typeAttribute, AttributeOperation.EQUALS, "allowedreference");
IQueryableAttribute referencingWIAttribute = queryAttrFactory.findAttribute(projectAreaHandle, referencingWorkItemTypeAttribute, utility.workItemCommon.getAuditableCommon(), utility.monitor);
AttributeExpression referencingWIExpression = new AttributeExpression(referencingWIAttribute, AttributeOperation.EQUALS, referencingWI);
IQueryCommon queryService = getService(IQueryCommon.class);
Term term = new Term(Term.Operator.AND);
IQueryResult<IResolvedResult<IWorkItem>> queryResult = queryService.getResolvedExpressionResults(projectAreaHandle, term, IWorkItem.FULL_PROFILE);

Then you loop over the result set:

int resultSize = queryResult.getResultSize(utility.monitor).getTotal();
if (resultSize>0) {    
    while (queryResult.hasNext(utility.monitor)) {
    IResolvedResult<IWorkItem> resolvedResultWI =;
    IWorkItem resolvedWI = resolvedResultWI.getItem();
    // .....
I hope it helps.

Stefano Antoniazzi commented Sep 28 '17, 10:37 a.m.

 Hi Luca, even if your code really makes sense, I would keep the main loop about queryResult.hasNext and for every page I would check queryResult.getResultSize to see if there are results on that page.

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Ralph Schoon (62.9k33645) | answered Sep 14 '17, 7:31 a.m.

You could try to start with:

Note that the api is client API. You will have to try to find common API in the server. E.g.

instead of


I haven'd tried thisin the server API, so that is all I have.

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