technology/java-spring-boot/src/main/java/org/acme/schooltimetabling/solver/TimeTableConstraintProvider.java [29:41]:
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    Constraint roomConflict(ConstraintFactory constraintFactory) {
        // A room can accommodate at most one lesson at the same time.
        return constraintFactory
                // Select each pair of 2 different lessons ...
                .forEachUniquePair(Lesson.class,
                        // ... in the same timeslot ...
                        Joiners.equal(Lesson::getTimeslot),
                        // ... in the same room ...
                        Joiners.equal(Lesson::getRoom))
                // ... and penalize each pair with a hard weight.
                .penalize(HardSoftScore.ONE_HARD)
                .asConstraint("Room conflict");
    }
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technology/kubernetes/common/src/main/java/org/acme/common/solver/TimeTableConstraintProvider.java [28:40]:
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    Constraint roomConflict(ConstraintFactory constraintFactory) {
        // A room can accommodate at most one lesson at the same time.
        return constraintFactory
                // Select each pair of 2 different lessons ...
                .forEachUniquePair(Lesson.class,
                        // ... in the same timeslot ...
                        Joiners.equal(Lesson::getTimeslot),
                        // ... in the same room ...
                        Joiners.equal(Lesson::getRoom))
                // ... and penalize each pair with a hard weight.
                .penalize(HardSoftScore.ONE_HARD)
                .asConstraint("Room conflict");
    }
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technology/java-activemq-quarkus/solver/src/main/java/org/acme/schooltimetabling/solver/TimeTableConstraintProvider.java [28:40]:
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    Constraint roomConflict(ConstraintFactory constraintFactory) {
        // A room can accommodate at most one lesson at the same time.
        return constraintFactory
                // Select each pair of 2 different lessons ...
                .forEachUniquePair(Lesson.class,
                        // ... in the same timeslot ...
                        Joiners.equal(Lesson::getTimeslot),
                        // ... in the same room ...
                        Joiners.equal(Lesson::getRoom))
                // ... and penalize each pair with a hard weight.
                .penalize(HardSoftScore.ONE_HARD)
                .asConstraint("Room conflict");
    }
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use-cases/school-timetabling/src/main/java/org/acme/schooltimetabling/solver/TimeTableConstraintProvider.java [28:40]:
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    Constraint roomConflict(ConstraintFactory constraintFactory) {
        // A room can accommodate at most one lesson at the same time.
        return constraintFactory
                // Select each pair of 2 different lessons ...
                .forEachUniquePair(Lesson.class,
                        // ... in the same timeslot ...
                        Joiners.equal(Lesson::getTimeslot),
                        // ... in the same room ...
                        Joiners.equal(Lesson::getRoom))
                // ... and penalize each pair with a hard weight.
                .penalize(HardSoftScore.ONE_HARD)
                .asConstraint("Room conflict");
    }
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hello-world/src/main/java/org/acme/schooltimetabling/solver/TimeTableConstraintProvider.java [28:40]:
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    Constraint roomConflict(ConstraintFactory constraintFactory) {
        // A room can accommodate at most one lesson at the same time.
        return constraintFactory
                // Select each pair of 2 different lessons ...
                .forEachUniquePair(Lesson.class,
                        // ... in the same timeslot ...
                        Joiners.equal(Lesson::getTimeslot),
                        // ... in the same room ...
                        Joiners.equal(Lesson::getRoom))
                // ... and penalize each pair with a hard weight.
                .penalize(HardSoftScore.ONE_HARD)
                .asConstraint("Room conflict");
    }
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