Method Details

• key

  String key(T dataObject)

  Gets the key for data object. If no key exists beforehand, a new key is created.

  Parameters:

  dataObject - data object for key mapping

  Returns:

  key for given data object

• has

  boolean has(T dataObject)

  Check whether this key mapper contains the given data object.

  Parameters:

  dataObject - the data object to check

  Returns:

  true if the given data object is contained in this key mapper, false otherwise

• get

  T get(String key)

  Gets the data object identified by given key.

  Parameters:

  key - key of a data object

  Returns:

  identified data object; null if invalid key

• remove

  void remove(T dataObject)

  Removes a data object from the key mapping. The key is also dropped. Dropped keys are not reused.

  Parameters:

  dataObject - dropped data object

• removeAll

  void removeAll()

  Removes all data objects from the key mapping. The keys are also dropped. Dropped keys are not reused.

• refresh

  void refresh(T dataObject)

  Updates any existing mappings of given data object. The equality of two data objects is determined by the equality of their identifiers provided by the given value provider.

  Parameters:

  dataObject - the data object to update

• setIdentifierGetter

  void setIdentifierGetter(ValueProvider<T,Object> identifierGetter)

  Takes identifier getter into use and updates existing mappings

  Parameters:

  identifierGetter - has to return a unique key for every bean, and the returned key has to follow general hashCode() and equals() contract, see Object.hashCode() for details.