How to use Groovy sum function in JDev11g

In Fusion developer guide: 3.6 Overview of Groovy Support
Says you can use the following built-in aggregate functions on ADF RowSet objects:
■ rowSetAttr.sum(GroovyExpr)
■ rowSetAttr.count(GroovyExpr)
■ rowSetAttr.avg(GroovyExpr)
■ rowSetAttr.min(GroovyExpr)
■ rowSetAttr.max(GroovyExpr)
Have see a couple of threads that deal with this topic but neither say how to explicitly do this.
I created a VO (EmpView1) and added a transient variable empSum, and set it to the expression EmpView1.sum("Sal") also rowSetAttr.sum("Sal") and get the following error.
(oracle.jbo.expr.JIEvalException) JBO-25077: Name EmpView1 not found in the given object: ViewRow [oracle.jbo.Key[7839 ]].
Really do need to find out how to use these functions.
Thanks - Casey

Hi,
here's a little tutorial
- create a master/detail relation between Departments and Employees using the HR schema
- For the Departments VO, create a RowImpl class from the Java section
- create an attribute SumFromEO in the Departments EO
- in the DepartmentsVO, create a new attribute from EO pointing to SumFromEO
- Also, in the VO, create a new attribute SumFromVO
- make sure the attribue is transiesnt
- set the created attribute on the VO "SumFromVO" and "SumFromEO" to use an Expression
- Add the following Groovy expression to the SumFromEO transient attribute on the EO
adf.object.Employees1.sum("Salary");
- Add the following Groovy expression to the SumFromVO transient attribute on the VO
adf.object.EmployeesView.sum("Salary");
When you run this then both, the EO based VO attribute and the VO attribute should show the same value
Frank

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