@Override
public Validation validate() {
validation.reset();
if (nameColumn == null) validation.addWarning("No Name Column selected");
if (raColumn == null) validation.addWarning("No Ra Column selected");
if (raColumn != null && !Number.class.isAssignableFrom(raColumn.getContentClass()))
validation.addError("Ra Column doesn't contain numbers");
if (decColumn == null) validation.addWarning("No Dec Column selected");
if (decColumn != null && !Number.class.isAssignableFrom(decColumn.getContentClass()))
validation.addError("Dec Column doesn't contain numbers");
return validation;
}
