@Override
public ValidationState getValidationState(Appendable errMsg) {
try {
// TODO: check duplicate columns here!!!
if (ntmp.getSourceIndex() == -1) {
if (ntmp.getTargetIndex() == -1) {
errMsg.append(
"The network cannot be created without selecting the source and target columns.");
return ValidationState.INVALID;
} else {
errMsg.append(
"No edges will be created in the network; the target column is not selected.\nDo you want to continue?");
return ValidationState.REQUEST_CONFIRMATION;
}
} else {
if (ntmp.getTargetIndex() == -1) {
errMsg.append(
"No edges will be created in the network; the source column is not selected.\nDo you want to continue?");
return ValidationState.REQUEST_CONFIRMATION;
} else {
return ValidationState.OK;
}
}
} catch (IOException ioe) {
ioe.printStackTrace();
return ValidationState.INVALID;
}
}
