/**
* Gets the reference number in the xref table based on the index in the indirect object list.
*
* @param i the index of an object in the indirect object list
* @return the corresponding reference number in the xref table
*/
public int getRefByIndex(int i) {
return idxToRef.get(i);
}
/**
* Gets the index of an object based on its number in the xref table.
*
* @param ref a number in the xref table
* @return the index in the list of indirect objects
*/
public int getIndexByRef(int ref) {
return refToIdx.get(ref);
}
