com.vaadin.collaborationengine

Class MapChangeEvent

java.lang.Object

java.util.EventObject

com.vaadin.collaborationengine.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

Field Summary

Fields inherited from class java.util.EventObject

source

Constructor Summary

Constructors

Constructor and Description
MapChangeEvent(CollaborationMap source, MapChange change) Creates a new map change event.

Method Summary

Modifier and Type	Method and Description
String	getKey() Gets the updated map key.
<T> T	getOldValue(Class<T> type) Gets the old value as an instance of the given class.
<T> T	getOldValue(com.fasterxml.jackson.core.type.TypeReference<T> typeRef) Gets the old value as an instance corresponding to the given type reference.
CollaborationMap	getSource()
<T> T	getValue(Class<T> type) Gets the new value as an instance of the given class.
<T> T	getValue(com.fasterxml.jackson.core.type.TypeReference<T> typeRef) Gets the new value as an instance corresponding to the given type reference.

Methods inherited from class java.util.EventObject

toString

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

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

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

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