Class MapChangeEvent

Constructor Detail

• MapChangeEvent

  public MapChangeEvent​(CollaborationMap source,
                        com.vaadin.collaborationengine.MapChange change)

  Creates a new map change event.

  Parameters:

  source - the collaboration map for which the event is fired, not null

  change - detail of the change, not null

  Since:

  1.0

Method Detail

• getSource

  public CollaborationMap getSource()

  Overrides:

  getSource in class EventObject

• getKey

  public String getKey()

  Gets the updated map key.

  Returns:

  the updated map key, not null

  Since:

  1.0

• getOldValue

  public <T> T getOldValue​(Class<T> type)

  Gets the old value as an instance of the given class.

  Type Parameters:

  T - the type of the value from type parameter, e.g. String

  Parameters:

  type - the expected type of the returned instance

  Returns:

  the old map value, or null if no value was present previously

  Since:

  1.0

• getOldValue

  public <T> T getOldValue​(com.fasterxml.jackson.core.type.TypeReference<T> typeRef)

  Gets the old value as an instance corresponding to the given type reference.

  Type Parameters:

  T - the type reference of the value from typeRef parameter, e.g. List>

  Parameters:

  typeRef - the expected type reference of the returned instance

  Returns:

  the old map value, or null if no value was present previously

  Since:

  1.0

• getValue

  public <T> T getValue​(Class<T> type)

  Gets the new value as an instance of the given class.

  Type Parameters:

  T - the type of the value from type parameter, e.g. String

  Parameters:

  type - the expected type of the returned instance

  Returns:

  the new map value, or null if the association was removed

  Since:

  1.0

• getValue

  public <T> T getValue​(com.fasterxml.jackson.core.type.TypeReference<T> typeRef)

  Gets the new value as an instance corresponding to the given type reference.

  Type Parameters:

  T - the type reference of the value from `typeRef` parameter, e.g. List>

  Parameters:

  typeRef - the expected type reference of the returned instance

  Returns:

  the new map value, or null if the association was removed

  Since:

  1.0