View Link Problems

Question

Hi
I have a master child relationship...
Lets say table Employee and Table Quarters
EMployee is master and qaurters child, in the quarters table i need to create a column called quarter name which is a transient column which will be populated at runtime...
so i create the view link, but when the code runs for the selection of the child rows i get 0 rows returned... ie when i click on the master row a PPR event fires which should iterate through the child rows and add the qaurter names to the list....
Please could someone tell me how to iterate through a child when selecting from a master
this is how i am doin it currently
XxPerfQuarterViewRowImpl row = (XxPerfQuarterViewRowImpl)first();
if(row != null)
String name = "Quarter "+i++;
row.setQuarterName(name);
while((row = (XxPerfQuarterViewRowImpl)next()) != null){
name = "Quarter "+i++;
row.setQuarterName(name);
but before this logic even runs i get a null pointer cos no rows are returned please assits ASAP
THanks IN Advance

Answer 1

all that i am doin with the code is setting the current row on the MAster
Here is the code for that
// sets rows with master details selcections
public void hangleMasterSelect(String view, String column, String value)
OADBTransaction txn = getOADBTransaction();
String detailTableText = null;
OAViewObject vo = (OAViewObject)findViewObject(view);
vo.reset();
Row [] rows = vo.getFilteredRows(column,value);
if ((rows != null) && (rows.length > 0))
Row masterRow = rows[0];
vo.setCurrentRow(masterRow);
which is called from the CO for the table region as follows
public void processFormRequest(OAPageContext pageContext, OAWebBean webBean)
super.processFormRequest(pageContext, webBean);
OAApplicationModule am = pageContext.getApplicationModule(webBean);
String event = pageContext.getParameter("event");
if ("quarterSelect".equals(event))
Serializable[] params = { "XxPerfQuarterView1", "SelectFlag", "Y" };
am.invokeMethod("hangleMasterSelect",params);
// am.invokeMethod("setQuarterNames");
right... now that alll works
but as i said to you i have to insert some dynamic data in the child table at runtime
ie in the quarters table (which is the child) once the correct rows are returned from the master IE the rows that are linked to the master....
i need to fo through them and set a string in a transient variable....
like this
public void setQuarterNames(String performanceId){
// setWhereClause("performance_contract_id ="+performanceId);
// executeQuery();
int i = 1;
XxPerfQuarterViewRowImpl row = (XxPerfQuarterViewRowImpl)first();
if(row != null)
String name = "Quarter "+i++;
row.setQuarterName(name);
while((row = (XxPerfQuarterViewRowImpl)next()) != null){
name = "Quarter "+i++;
row.setQuarterName(name);
}