Hi when i use the following drl file for score calculation ....It assign a bigger table into the smaller room. help will be appreciated.... console output is as follows.. *Solved Organizer with 2 rooms and 3 tables: Table 1 -> Room 1 Table 2 -> Room 2 Table 3 -> Room 2* test data: Room room1 = new Room(10, 10); room1.setId((long) 1); Room room2 = new Room(10, 10); room2.setId((long) 2); ---- Table table1 = new Table(10, 10); table1.setId((long) 1); Table table2 = new Table(9, 9); table2.setId((long) 2); Table table3 = new Table(9, 9); table3.setId((long) 3); drl file for score calculation... //created on: Jun 18, 2012 package org.drools.planner.organizer; dialect "java" //list any import classes here. import org.drools.planner.core.score.buildin.hardandsoft.HardAndSoftScoreHolder; import org.drools.planner.core.score.constraint.IntConstraintOccurrence; import org.drools.planner.core.score.constraint.ConstraintType; import org.drools.planner.organizer.domain.Room; import org.drools.planner.organizer.domain.Table; //declare any global variables here global HardAndSoftScoreHolder scoreHolder; // ############################################################################ // Hard constraints // ############################################################################ rule "requiredLengthTotal" when $room : Room($length : length) $requiredSpaceTotal : Number(intValue > $length) from accumulate( Table( room == $room, $tablelength : length), sum($tablelength) ) then insertLogical(new IntConstraintOccurrence("requiredLengthTotal", ConstraintType.NEGATIVE_HARD, $requiredSpaceTotal.intValue() - $length, $room)); end rule "requiredWidthTotal" when $room : Room($width : width) $requiredSpaceTotal : Number(intValue > $width) from accumulate( Table( room == $room, $tablewidth : width), sum($tablewidth) ) then insertLogical(new IntConstraintOccurrence("requiredWidthTotal", ConstraintType.NEGATIVE_HARD, $requiredSpaceTotal.intValue() - $width, $room)); end // ############################################################################ // Soft constraints // ############################################################################ rule "roomLengthCapacity" when $room : Room($length : length) $table : Table(room == $room, length > $length, $tablelength : length) then insertLogical(new IntConstraintOccurrence("roomLengthCapacity", ConstraintType.NEGATIVE_SOFT, ($tablelength - $length), $room, $table)); end rule "roomWidthCapacity" when $room : Room($width : width) $table : Table(room == $room, width > $width, $tablewidth : width) then insertLogical(new IntConstraintOccurrence("roomWidthCapacity", ConstraintType.NEGATIVE_SOFT, ($tablewidth - $width), $room, $table)); end // ############################################################################ // Calculate score // ############################################################################ // Accumulate hard constraints rule "hardConstraintsBroken" salience -1 // Do the other rules first (optional, for performance) when $hardTotal : Number() from accumulate( IntConstraintOccurrence(constraintType == ConstraintType.NEGATIVE_HARD, $weight : weight), sum($weight) ) then scoreHolder.setHardConstraintsBroken($hardTotal.intValue()); end // Accumulate soft constraints rule "softConstraintsBroken" salience -1 // Do the other rules first (optional, for performance) when $softTotal : Number() from accumulate( IntConstraintOccurrence(constraintType == ConstraintType.NEGATIVE_SOFT, $weight : weight), sum($weight) ) then scoreHolder.setSoftConstraintsBroken($softTotal.intValue()); end ----- with kind regards, -- View this message in context: http://drools.46999.n3.nabble.com/planner-score-calculation-error-tp40181... Sent from the Drools: User forum mailing list archive at Nabble.com. _______________________________________________ rules-users mailing list rules-users(a)lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users