2011/6/30 <rouvas <at> mm.di.uoa.gr>

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The times attempt to be ISO8601 compliant, for Hours and earlier. Although I noticed that tidbit of information is missing for the docs, we'll get it added. See TimeUtils

private static final Pattern SIMPLE  = Pattern.compile( "([+-])?((\\d+)[Dd])?\\s*((\\d+)[Hh])?\\s*((\\d+)[Mm])?\\s*((\\d+)[Ss])?\\s*((\\d+)([Mm][Ss])?)?" );

    public static long parseTimeString( String time ) {
        String trimmed = time.trim();
        long result = 0;
        if( trimmed.length() > 0 ) {
            Matcher mat = SIMPLE.matcher( trimmed );
            if ( mat.matches() ) {
                int days = (mat.group( SIM_DAY ) != null) ? Integer.parseInt( mat.group( SIM_DAY ) ) : 0;
                int hours = (mat.group( SIM_HOU ) != null) ? Integer.parseInt( mat.group( SIM_HOU ) ) : 0;
                int min = (mat.group( SIM_MIN ) != null) ? Integer.parseInt( mat.group( SIM_MIN ) ) : 0;
                int sec = (mat.group( SIM_SEC ) != null) ? Integer.parseInt( mat.group( SIM_SEC ) ) : 0;
                int ms = (mat.group( SIM_MS ) != null) ? Integer.parseInt( mat.group( SIM_MS ) ) : 0;
                long r = days * DAY_MS + hours * HOU_MS + min * MIN_MS + sec * SEC_MS + ms;
                if( mat.group(SIM_SGN) != null && mat.group( SIM_SGN ).equals( "-" ) ) {
                    r = -r;
                }
                result = r;
            } else if( "*".equals( trimmed ) || "+*".equals( trimmed ) ) {
                // positive infinity
                result = Long.MAX_VALUE;
            } else if( "-*".equals( trimmed ) ) {
                // negative infinity
                result = Long.MIN_VALUE;
            } else {
                throw new RuntimeDroolsException( "Error parsing time string: [ " + time + " ]" );
            }
        }
        return result;
    }


On 01/07/2011 06:21, Wolfgang Laun wrote:

2011/6/30 <rouvas <at> mm.di.uoa.gr>

What are the available symbolics for temporal values?
That is, d is for days, m is for minutes, h is for hours, s is for seconds.
Are there any other symbolics specifically for months and years?

You can use ms for millisecond. There are no universally acceptable duration values for monts and years .
-W
 

I haven't found any mentioning of them in the Fusion manual.
I'm using 5.0.1

Thank you,
-Stathis

Wolfgang Laun wrote:
> See the "Fusion" manual, section on Temporal Reasoning/Temporal Operators.
> Even when the facts aren't events, these operators can still be applied to
> fields of type Date, e.g.
>
>     $p1: Person( $dob1: dob )
>     $p2: Person( $dob2: dob after[3d] $dob1 )
>
> -W
>
>
> On 28 June 2011 18:02, <rouvas <at> mm.di.uoa.gr> wrote:
>
>> Hi list,
>>
>> I feel this should be an elementary question but unfortunately I haven't
>> been able to find a solution.
>>
>> I would like to perform date arithmetic in the when part of a rule.
>>
>> For example, I would like to express something like:
>>
>> rule "Date compare rule"
>>  dialect "mvel"
>> when
>>  a : A()
>>  b : B( a.creationDate <= b.creationDate after 3 months)
>> then
>>  ...
>> end
>>
>> Apart from using eval()'s is there any other way to express these types
>> of
>> comparisons?
>>
>> Thank you for your time,
>> -Stathis
>>
>>
>> _______________________________________________
>> rules-users mailing list
>> rules-users <at> lists.jboss.org
>> https://lists.jboss.org/mailman/listinfo/rules-users
>>
>

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All of Java can be used on the RHS of a rule.

Inserting a fact (or event) is done simply by: insert( X )

-W

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Whilst I don't believe there is anything "out of the box" could you just not write a JEE5 javax.servlet.Filter to perform the compression for you?

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