public T first() throws SQLException {
if (closed) {
return null;
}
first = false;
if (results.first()) {
return getCurrent();
} else {
return null;
}
}
/**
* Returns whether or not there are any remaining objects in the table. Can be called before
* next().
*
* @throws SQLException If there was a problem getting more results via SQL.
*/
public boolean hasNextThrow() throws SQLException {
if (closed) {
return false;
}
if (alreadyMoved) {
// we do this so multiple hasNext() calls can be made, result would be true or closed is true
return true;
}
boolean result;
if (first) {
first = false;
result = results.first();
} else {
result = results.next();
}
if (!result) {
close();
}
alreadyMoved = true;
return result;
}
public T nextThrow() throws SQLException {
if (closed) {
return null;
}
if (!alreadyMoved) {
boolean hasResult;
if (first) {
first = false;
hasResult = results.first();
} else {
hasResult = results.next();
}
// move forward
if (!hasResult) {
first = false;
return null;
}
}
first = false;
return getCurrent();
}