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package bjc.rgens.parser.elements;
import bjc.rgens.parser.GenerationState;
/**
* Case element which generates a range of random numbers.
*
* @author Ben Culkin
*
*/
public class RangeCaseElement extends CaseElement {
/**
* The beginning point for this range.
*/
public final int begin;
/**
* The ending point for this range.
*/
public final int end;
/**
* Create a new range case element.
* @param beg The beginning point for the range.
* @param en The ending point for the range.
*/
public RangeCaseElement(int beg, int en) {
super(true);
begin = beg;
end = en;
}
@Override
public void generate(GenerationState state) {
int val = state.rnd.nextInt(end - begin);
val += begin;
state.appendContents(Integer.toString(val));
}
@Override
public int hashCode() {
final int prime = 31;
int result = super.hashCode();
result = prime * result + begin;
result = prime * result + end;
return result;
}
@Override
public boolean equals(Object obj) {
if (this == obj)
return true;
if (!super.equals(obj))
return false;
if (getClass() != obj.getClass())
return false;
RangeCaseElement other = (RangeCaseElement) obj;
if (begin != other.begin)
return false;
if (end != other.end)
return false;
return true;
}
@Override
public String toString() {
return String.format("[%d..%d]", begin, end);
}
}
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