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Make sure rolling stock has at least one coupling

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Arne Keller 2020-02-29 11:11:00 +01:00
parent 8f8baf6701
commit 324231ef07
1 changed files with 4 additions and 1 deletions
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5
src/edu/kit/informatik/model/RollingStock.java
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@ -27,13 +27,16 @@ public abstract class RollingStock {
* @param length length of this rolling stock * @param length length of this rolling stock
* @param couplingFront whether this rolling stock should have a front coupling * @param couplingFront whether this rolling stock should have a front coupling
* @param couplingBack whether this rolling stock should have a back coupling * @param couplingBack whether this rolling stock should have a back coupling
* @throws InvalidInputException on invalid user input (zero-sized coach) * @throws InvalidInputException on invalid user input (e.g. zero-sized coach)
*/ */
protected RollingStock(final int length, final boolean couplingFront, final boolean couplingBack) protected RollingStock(final int length, final boolean couplingFront, final boolean couplingBack)
throws InvalidInputException { throws InvalidInputException {
if (length < 1) { if (length < 1) {
throw new InvalidInputException("rolling stock length has to be positive"); throw new InvalidInputException("rolling stock length has to be positive");
} }
if (!couplingFront && !couplingBack) {
throw new InvalidInputException("rolling stocks needs at least one coupling");
}
this.length = length; this.length = length;
this.couplingFront = couplingFront; this.couplingFront = couplingFront;
this.couplingBack = couplingBack; this.couplingBack = couplingBack;