@Override
public Object execute(final FunctionRequest request) {
request.minimumNumberOfArguments(1).maximumNumberOfArguments(1);
final Course course = (Course) request.get(0);
if (course.getCreditPoints() < 0) {
return "";
}
return "cp=\"" + course.getCreditPoints() + "\"";
}
@Override
public Object execute(final FunctionRequest request) {
request.minimumNumberOfArguments(2).maximumNumberOfArguments(2);
final Level level = (Level) request.get(0);
final Integer depth = ((BigDecimal) request.get(1)).intValue();
final StringBuilder sb = new StringBuilder();
traverse(level, depth, sb);
return sb.toString();
}
@Override
public Boolean execute(FunctionRequest request) {
Object input = request.maximumNumberOfArguments(1).minimumNumberOfArguments(1).get(0);
return request
.getEnvironment()
.getValueEnvironment()
.getCollectionConverter()
.convert(input)
.isDefined();
}