Differences in the use of RowSetIterator reading records from a VO?

Hi experts,

I use Jdev 11.1.1.1.5 and 12.1.3, and I would like to know what is the difference between browse a VO using a RowSetIterator or not it:

Example 1: Don't use NOT iterator:

ViewObjectImpl viewObject = getEmployeesView();  
viewObject.executeQuery();  
while (viewObject.hasNext()) {  
 Row row = viewObject.next();  
 // DO what do you want in Row  
}

Example 2: Use of iterator:

ViewObjectImpl viewObject = getEmployeesView();  
RowSetIterator rsIterator = viewObject.createRowSetIterator(null);  
rsIterator.reset();  
while (rsIterator.hasNext()) {  
 Row row = rsIterator.next();  
 // DO what do you want in Row  
}  
rsIterator.closeRowSetIterator();

Kind regards

Jose.

ViewObject.next (unless delegated) RowSetIterator:

https://docs.Oracle.com/CD/E12839_01/apirefs.1111/e10653/Oracle/JBO/Server/ViewObjectImpl.html#next%28%29

While, in example 2, you are created again, second RowSetIterator.

There is no diff. except that you can have two lines of different currents in two cases of iterator...

Tags: Java

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