You'll need 2 rules, one for truncating a key that does not match and
another one for handling the match. If you have to handle absolute failure
(not even "a" matches) you'll need a third rule and a more complex fact for
storing the original and the truncated string.
These 2 rules are untested:
rule "truncate when not found"
when
$s: String( length > 0 )
$m: Map( keySet not contains $s )
then
retract( $s );
insert( $s.substring( 0, $s.length() -1 );
end
rule "found"
when
$s: String()
$m: Map( keySet contains $s )
then
System.out.println( "key " + $s + " is in the Map" );
end
-W
On 4 October 2011 15:41, rahulkrishnan <rahulkrishn...@gmail.com> wrote:
> Hi
> I want to match a string with the contents of hashmap. The process is like
> this.
>
> Let the string is "abcd"
> First it will search for abcd in the map
> if found i have to assign it to a variable else i has to remove the last
> alphabet ("abc") and have to match with hashmap like is the process.
>
> My Problem is iam not able to do that iteration in when part
> What i have done is i will check the condition in when part if it matches
> the hashmap then it will exit. Else it will satisfies the condition(String
> not matching any of hashmap contents) and goes in then and update the
> string
> by removing the last alphabet and loops .
>
> rule "somerule"
> no-loop false
> when
> condition for checking that hashmap has no key of String s and
> s.length>0
> then
> modify the String s by removing last alphabet
> end
>
>
> is there any option to do the looping in the when part itself
>
>
> --
> View this message in context:
> http://drools.46999.n3.nabble.com/Looping-in-When-part-tp3393236p3393236.html
> Sent from the Drools: User forum mailing list archive at Nabble.com.
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