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package rba.core.generator.util.value;
import org.eclipse.emf.common.util.EList;
import org.eclipse.emf.ecore.EObject;
import rba.core.ComparisonOperator;
import rba.core.Expression;
import rba.core.RuleObject;
public abstract class ComparisonOperatorEvaluator<T extends RuleObject> extends ExpressionEvaluator<T> implements ComparisonOperator {
protected ComparisonOperator operator;
protected T subject;
protected ComparisonOperatorEvaluator(ComparisonOperator o) {
super(o);
operator = o;
EObject container = o.eContainer();
while (!(container instanceof RuleObject)) {
container = container.eContainer();
if (container == null)
break;
}
if (container != null) {
subject = (T) container;
}
}
abstract public boolean evaluate(ValueSortedList<T> list);
/**
* @param list
* @return -1 if it has no suggestion 9999 implies MAX group (last index)
*/
abstract public int suggestIndex(ValueSortedList<T> list);
@Override
public EList<Expression> getOperand() {
return operator.getOperand();
}
@Override
public String getSymbol() {
return operator.getSymbol();
}
}
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