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package hu.bme.mit.inf.dslreasoner.viatrasolver.logic2viatra.cardinality
import org.eclipse.emf.common.notify.Notifier
import org.eclipse.viatra.query.runtime.api.IQuerySpecification
import org.eclipse.viatra.query.runtime.api.ViatraQueryEngine
import org.eclipse.viatra.query.runtime.api.ViatraQueryMatcher
import org.eclipse.viatra.query.runtime.emf.EMFScope
class MultiplicityGoalConstraintCalculator {
val String targetRelationName
val IQuerySpecification<?> querySpecification
var ViatraQueryMatcher<?> matcher
val boolean containment
val int cost
public new(String targetRelationName, IQuerySpecification<?> querySpecification, boolean containment, int cost) {
this.targetRelationName = targetRelationName
this.querySpecification = querySpecification
this.matcher = null
this.containment = containment
this.cost = cost
}
new(MultiplicityGoalConstraintCalculator other) {
this.targetRelationName = other.targetRelationName
this.querySpecification = other.querySpecification
this.matcher = null
this.containment = other.containment
this.cost = other.cost
}
def getName() {
targetRelationName
}
def isContainment() {
return containment
}
def init(Notifier notifier) {
val engine = ViatraQueryEngine.on(new EMFScope(notifier))
matcher = querySpecification.getMatcher(engine)
}
def calculateValue() {
var res = 0
val allMatches = this.matcher.allMatches
for(match : allMatches) {
val missingMultiplicity = match.get(2) as Integer
res += missingMultiplicity
}
// if(res>0)
// println(targetRelationName+ " all missing multiplicities: "+res + "*"+cost+"="+res*cost)
return res*cost
}
}
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