Examples of de.fhg.igd.mongomvcc.helper.IdHashMap

de.fhg.igd.mongomvcc.helper.IdHashMap

Provides an implementation of {@link IdMap} based on a hash table. Usesdouble hashing. The table size is always a prime number.

You MUST NOT try to add {@link Long#MAX_VALUE} or {@link Long#MIN_VALUE}as keys to the map, because these value are reserved for unused table entries.

This set is a lot faster than Map<Long, Long> and even a little bit faster than trove4j's implementation.
@author Michel Kraemer

    return new Commit(cid, timestamp, parentCID, rootCID, objects);
  }
  
  private static IdMap resolveCollectionObjects(DBObject o) {
    Set<String> keys = o.keySet();
    IdMap r = new IdHashMap(keys.size());
    for (String k : keys) {
      r.put(Long.parseLong(k), (Long)o.get(k));
    }
    return r;
  }

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   * @return the map
   */
  private IdMap getObjects(String collection) {
    IdMap objs = _objects.get(collection);
    if (objs == null) {
      objs = new IdHashMap();
      _objects.put(collection, objs);
    }
    return objs;
  }

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   * @return the map
   */
  private IdMap getDirtyObjects(String collection) {
    IdMap objs = _dirtyObjects.get(collection);
    if (objs == null) {
      objs = new IdHashMap();
      _dirtyObjects.put(collection, objs);
    }
    return objs;
  }

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