/**
* Return the id of the table with a specified name,
*
* @throws NoSuchElementException if the table doesn't exist
*/
public int getTableId(String name) throws NoSuchElementException {
// some code goes here
DbFile tableID = tableFile.get(name);
if (tableID == null) throw new NoSuchElementException();
// System.out.println(tableID.getId());
else return tableID.getId();
}
/**
* Add a new table to the catalog. This table's contents are stored in the specified DbFile.
*
* @param file the contents of the table to add; file.getId() is the identfier of this
* file/tupledesc param for the calls getTupleDesc and getFile
* @param name the name of the table -- may be an empty string. May not be null. If a name
* @param pkeyField the name of the primary key field conflict exists, use the last table to be
* added as the table for a given name.
*/
public void addTable(DbFile file, String name, String pkeyField) throws IllegalArgumentException {
// some code goes here
if (file == null || name == null) {
throw new IllegalArgumentException();
} else {
// String[] tableAdd = {name, pkeyField};
tableFile.put(name, file);
tablepkey.put(name, pkeyField);
fileId.put(file.getId(), name);
}
}