Esempio n. 1
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 /**
  * Remove a pair from the mapping. This operation removes a (key,id) pair from the mapping.
  *
  * @param key is the key whose id is to be released
  */
 public void dropPair(long key) {
   int id = ht.lookup(key);
   if (id == 0) return;
   ht.remove(key);
   ids.swap(id);
   cnt--;
 }
Esempio n. 2
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 /**
  * Get the id for a given key.
  *
  * @param key is the key for which the id is required
  * @return the corresponding id or 0 if the key is not mapped or the operation fails
  */
 public int getId(long key) {
   return ht.lookup(key);
 }
Esempio n. 3
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 /**
  * Determine if a given key has been mapped to an identfier.
  *
  * @param key is the key to be checked
  * @return true if the key has been mapped, else false
  */
 public boolean validKey(long key) {
   return (ht.lookup(key) != 0);
 }