/**
* Adds the specified tuple to the page; the tuple should be updated to reflect that it is now
* stored on this page.
*
* @throws DbException if the page is full (no empty slots) or tupledesc is mismatch.
* @param t The tuple to add.
*/
public void insertTuple(Tuple t) throws DbException {
// some code goes here
// not necessary for lab1
RecordId targetrid = t.getRecordId();
if (getNumEmptySlots() == 0 || !td.equals(t.getTupleDesc())) {
throw new DbException("Either page is full or tuple desc doesn't match");
}
for (int i = 0; i < getNumTuples(); i++) {
if (!isSlotUsed(i)) {
markSlotUsed(i, true);
RecordId rid = new RecordId(pid, i);
t.setRecordId(rid);
tuples[i] = t;
return;
}
}
}
/** Unit test for Tuple.getTupleDesc() */
@Test
public void getTupleDesc() {
TupleDesc td = Utility.getTupleDesc(5);
Tuple tup = new Tuple(td);
assertEquals(td, tup.getTupleDesc());
}