[rules-users] simple rule takes long time

[Scott Reed]

The LHS of "Change data" is true for every initial datum so I believe 
what is happening is that it sets all your isCheck flags true 
immediately before the "Unique Data" rule executes. I probably wasn't 
very clear about what the flag was supposed to do. I meant to suggest 
using a flag to record that a duplicate was detected to prevent running 
the rule on any data that is found to be a duplicate. "isDuplicate" 
would probably be a better name for the flag.

All you should need is one rule like the following:

rule "Unique data"
    no-loop
    salience 10
    when
        $data1: Data( $id1: id )
        $data2: Data( isCheck == false, id == $id1)
    then
        log.log(" data have same id (" + $data2.getId() + "):"+
                    $data1.getName() +" and"+
                    $data2.getName());

        $data1.setIsCheck(); // $data1 is duplicate
        update($data1);

        $data.setIsCheck(); // $data is duplicate
        update($data);
end

ygaurav wrote:
> Hi All 
>
> I have few changes to my data class as suggested above and rule and it seems
> to work. But that brings me to another question. Here is my new data class
>
> Data class
>
> public class Data {
> 	
> 	
> 	private int id =0;
> 	public boolean isCheck = false;
> 	public String name = "";
> 	public Data(int id) {
> 		this.id = id;
> 		name = "name"+(int)(this.hashCode());
> 		System.out.println("id is "+id+" name is "+name);		
> 	}
> 	
> 	public int getId() {
> 		return id;
> 	}
> 	
> 	public void setIsCheck() {
> 		isCheck = true;
> 	}
> 	
> 	public boolean getIsCheck() {
> 		return isCheck;
> 	}
> 	
> 	public String getName() {
> 		return name;
> 	}
> }
>
>
>
> rule "Unique data"
>     no-loop
>     salience 10
>     when
>         $data1: Data( $id1: id,isCheck == false)
>         $data2: Data( isCheck == true, id == $id1)
>     then 
>         log.log(" data are not unique:"+ $data1.getName() +" and
> "+$data2.getName()+ " id is "+$data2.getId()+" "+$data1.getId());
> end
>
> rule "Change data"
>     no-loop
>     when
>         $data: Data(isCheck == false)
>     then 
>         $data.setIsCheck();
>         update($data);
> end
>
>
> So you can see from above that I set value false at the start and then set
> it to true in a different rule. Now it takes only less then a second to
> execute the rule. I was not aware of the fact that each time i insert a rule
> it start executing it. 
>
> Now my question is 
>
> Is it possible to stop working memory to start processing when I am
> inserting data ? So don't execute anything untill I am finished adding all
> the data and then fireAllrules 
>
> thanks  ( also thanks to Scott Reed-3 who led to this solution) 
> Gaurav
>
>
>
>