Package io.jmix.ui.model

Class DataContext.ChangeEvent

java.lang.Object

java.util.EventObject

io.jmix.ui.model.DataContext.ChangeEvent

All Implemented Interfaces:

Serializable

Enclosing interface:

DataContext

public static class DataContext.ChangeEvent
extends EventObject

Event sent when the context detects changes in an entity, a new instance is merged or an entity is removed.

In this event listener, you can react to changes of tracked entities, for example:

     @Subscribe(target = Target.DATA_CONTEXT)
     protected void onChange(DataContext.ChangeEvent event) {
         log.debug("Changed entity: " + event.getEntity());
         indicatorLabel.setValue("Changed");
     }
 

See Also:

• Serialized Form

Field Summary

Fields inherited from class java.util.EventObject

source

Constructor Summary

Constructors

Constructor	Description
ChangeEvent(DataContext dataContext, Object entity)

Method Summary

Modifier and Type	Method	Description
Object	getEntity()	Returns the changed entity.
DataContext	getSource()	The data context which sent the event.

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 Details

ChangeEvent

public ChangeEvent(DataContext dataContext,
 Object entity)

Method Details

getSource

public DataContext getSource()

The data context which sent the event.

Overrides:

getSource in class EventObject

getEntity

public Object getEntity()

Returns the changed entity.