Question

I’m trying to sort a Documents Collection using a java.util.ArrayList.

var myarraylist:java.util.ArrayList = new java.util.ArrayList()
var doc:NotesDocument = docs.getFirstDocument();

while (doc != null) {       
    myarraylist.add(doc)                       
    doc = docs.getNextDocument(doc);        
}

The reason I’m trying with ArrayList and not with TreeMaps or HashMaps is because the field I need for sorting is not unique; which is a limitation for those two objects (I can’t create my own key).

The problem I’m facing is calling CustomComparator:

Here how I’m trying to sort my arraylist:

java.util.Collections.sort(myarraylist, new CustomComparator());

Here my class:

import java.util.Comparator;
import lotus.notes.NotesException;

public class CustomComparator implements Comparator<lotus.notes.Document>{


public int compare(lotus.notes.Document doc1, lotus.notes.Document doc2) {
    try {
        System.out.println("Here");
        System.out.println(doc1.getItemValueString("Form"));             
         return doc1.getItemValueString("Ranking").compareTo(doc2.getItemValueString("Ranking"));
    } catch (NotesException e) {
        e.printStackTrace();
    }
    return 0;
}

}

Error:

Script interpreter error, line=44, col=23: Error calling method
‘sort(java.util.ArrayList, com.myjavacode.CustomComparator)’ on java
class ‘java.util.Collections’

Any help will be appreciated.

Answer 1

I tried to run your SSJS code in a try-catch block, printing the error in exception in catch block and I got the following message – java.lang.ClassCastException: lotus.domino.local.Document incompatible with lotus.notes.Document

I think you have got incorrect fully qualified class names of Document and NotesException. They should be lotus.domino.Document and lotus.domino.NotesException respectively.