Comparing Object (facts) in working memory in drools

I am reading an excel sheet through DRT (rule template) and then converting it in to Object of a class through a static method in Java class. and also inserting it in to working memroty. In this way, working memory is filled up with all the facts from Excel sheet.

Now, I am sending facts through Java class in INSERT() through session. I need to match two similar object and return the matched objects from working memory. As for Example:

Read from Excel and inserted in to the Working memory.

Person(name == "Kumar", Age == 60, status == true);

Now in Java class, through session I am inserting the following object:

Person(name == "Kumar", Age == 60 );

and then I need to set Status = true by comparing the two Objects.

I need to write the rule that will compare both objects.

Please suggest some way.

Thanks Shorav

If we have to assume that it is possible that there are three or more "similar" facts it's best to do it like this:

rule "find same name and age"
when
    $p1: Person( $name: name, $age: age, status == false )
    $p2: Person( name == name, age == $age, status == false, this != $p1 )
    accumulate( $p: Person( name == name, age == $age, status == false );
                $list: collectList( $p ) )
then
    for( int i = 0; i < $list.size(); i++ ){
        Person p = (Person)$list.get(i);
        update( p ){ setStatus( true ) }
    }
end