Advanced Customization > Business Logic Customization > Customizing Windchill Visualization Services > Custom Publishing > Solution > Procedure – Creating Custom Schedule Jobs > An Advanced Technique for Custom Schedule Jobs
  
An Advanced Technique for Custom Schedule Jobs
Using the technique in the Custom Schedule Job Fundamentals does not allow you to provide input to creating the Publish Job and specify the name of the Representation, description of the Representation, etc. Combining the concepts in theProcedure – Invoking Publishing from Custom Code/Workflow with the Custom Schedule Job Fundamentals can open up a lot of flexibility for schedule jobs.
The technique simply requires you to insert the use of the doPublish method from the Publisher class into your myCustomJob method. Since myCustomJob must return a QueryResult, simply return an empty QueryResult as the doPublish method will now cause Publish Jobs to be queued up for execution.
public static WTList myCustomJob() {
WTList wt = new WTArrayList();

try {
QuerySpec qs = new QuerySpec(WTDocument.class);
WTContainerRef cr = ScheduleJobs.getCurrentContainer();
if (cr != null) {
ContainerSpec cs = new ContainerSpec();
cs.addSearchContainer(cr);
qs.setAdvancedQueryEnabled(true);
qs.appendWhere(
WTContainerHelper.getWhereContainerIn(cs, WTDocument.class),
new int[]{0});
}
if (cr != null) qs.appendAnd();
qs.appendWhere(new SearchCondition(WTDocument.class,
Iterated.LATEST_ITERATION,
SearchCondition.IS_TRUE),
new int[]{0});

Representable doc = null;
String objRef;
int offset = 0;
BasicPageableQuerySpec bpqs = new BasicPageableQuerySpec();
bpqs.setPrimaryStatement(qs);
bpqs.setOffset(offset);
bpqs.setRange(1000);
PagingQueryResult qr =
(PagingQueryResult)PersistenceHelper.manager.find(bpqs);
long sessionId = qr.getSessionId();
int total = qr.getTotalSize();

while (true) {
while (qr.hasMoreElements()) {
doc = (Representable)((Object[])qr.nextElement())[0];
objRef =
ObjectReference.newObjectReference(doc).toString();
Publisher pub = new Publisher();
pub.doPublish(false, true, objRef, (ConfigSpec)null,
(ConfigSpec)null, true, "My Rep",
"My Description", Publisher.NONE, null, 0);
}

offset += qr.size();
if (offset >= total) break;

PageableQuerySpec pqs = new PagingSessionSpec(sessionId);
pqs.setOffset(offset);
pqs.setRange(1000);
qr =
(PagingQueryResult)PersistenceHelper.manager.find(pqs);
}
if (sessionId > 0)
PagingSessionHelper.closePagingSession(sessionId);
} catch(Exception e) {e.printStackTrace();}

return new wtl;
}
This is the same example used in Custom Schedule Job Fundamentals, but notice the use of the doPublish method shown in bold. This custom job will now create Representations with the name “My Rep” and a description of “My Description”. Also, note that the returned WTList from the method is empty.
Refer to Procedure – Invoking Publishing from Custom Code/Workflow for see other useful ways to use the doPublish method.