com.vaadin.collaborationengine.

Class MapChangeEvent

  • All Implemented Interfaces:

    Serializable


    public class MapChangeEvent
extends EventObject

    Event that is fired when the value in a collaboration map changes.

    Author:

    Vaadin Ltd

    See Also:

    Serialized Form

    • Constructor Detail

      • MapChangeEvent

        public MapChangeEvent(CollaborationMap source,
                      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

    • Method Detail

      • getKey

        public String getKey()

        Gets the updated map key.

        Returns:

        the updated map key, not null

      • 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

      • 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

      • 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

      • 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