com.vaadin.event.dd.acceptcriteria
Class SourceIsTarget
java.lang.Object
com.vaadin.event.dd.acceptcriteria.ClientSideCriterion
com.vaadin.event.dd.acceptcriteria.SourceIsTarget
- All Implemented Interfaces:
- AcceptCriterion, Serializable
public class SourceIsTarget
- extends ClientSideCriterion
A criterion that ensures the drag source is the same as drop target. Eg.
Tree or Table could support only re-ordering of items, but no
Transferables coming outside.
Note! Class is singleton, use get() method to get the instance.
- Since:
- 6.3
- See Also:
- Serialized Form
| Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
accept
public boolean accept(DragAndDropEvent dragEvent)
- Description copied from interface:
AcceptCriterion
- Validates the data in event to be appropriate for the
DropHandler.drop(DragAndDropEvent) method.
Note that even if your criterion is validated on client side, you should
always validate the data on server side too.
- Returns:
get
public static SourceIsTarget get()
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