@Override
public int hashCode() {
final int prime = 31;
int result = super.hashCode();
result = prime * result + Arrays.hashCode(_curves);
result = prime * result + _spreadFunction.hashCode();
return result;
}
/**
* @param spreadFunction The spread function, not null
* @param name The name of the curve
* @param curves The curves, not null, contains more than one curve
*/
public SpreadDoublesCurve(
final CurveSpreadFunction spreadFunction, final String name, final DoublesCurve... curves) {
super(name);
ArgumentChecker.notNull(curves, "curves");
ArgumentChecker.isTrue(curves.length > 1, "curves");
ArgumentChecker.notNull(spreadFunction, "spread operator");
_curves = curves;
_spreadFunction = spreadFunction;
_f = spreadFunction.evaluate(curves);
}
/**
* Returns a string that represents the mathematical form of this curve. For example, <i>D = (A +
* (B / C))</i>
*
* @return The long name of this curve
*/
public String getLongName() {
final StringBuffer sb = new StringBuffer(getName());
sb.append("=");
int i = 0;
sb.append("(");
for (final Curve<Double, Double> curve : _curves) {
if (curve instanceof SpreadDoublesCurve) {
sb.append(((SpreadDoublesCurve) curve).getLongName().substring(2));
} else {
sb.append(curve.getName());
}
if (i != _curves.length - 1) {
sb.append(_spreadFunction.getOperationName());
}
i++;
}
sb.append(")");
return sb.toString();
}
