com.vaadin.ui
Class Tree.TargetItemAllowsChildren

java.lang.Object
  com.vaadin.event.dd.acceptcriteria.ClientSideCriterion
      com.vaadin.event.dd.acceptcriteria.TargetDetailIs
          com.vaadin.ui.Tree.TargetItemAllowsChildren

All Implemented Interfaces:

AcceptCriterion, Serializable

Enclosing class:

Tree

public static class Tree.TargetItemAllowsChildren
extends TargetDetailIs

A criterion that accepts Transferable only directly on a tree node that can have children.

Class is singleton, use get() to get the instance.

Since:

6.3

See Also:

Tree.setChildrenAllowed(Object, boolean), Serialized Form

Method Summary

boolean	accept(DragAndDropEvent dragEvent) Validates the data in event to be appropriate for the DropHandler.drop(DragAndDropEvent) method.
static Tree.TargetItemAllowsChildren	get()

Methods inherited from class com.vaadin.event.dd.acceptcriteria.TargetDetailIs

getIdentifier, paintContent

Methods inherited from class com.vaadin.event.dd.acceptcriteria.ClientSideCriterion

isClientSideVerifiable, paint, paintResponse

Methods inherited from class java.lang.Object

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

Method Detail

get

public static Tree.TargetItemAllowsChildren get()

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.

Specified by:

accept in interface AcceptCriterion

Overrides:

accept in class TargetDetailIs

Returns: