com.vaadin.ui.
Class Tree.TargetItemAllowsChildren
- java.lang.Object
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- com.vaadin.event.dd.acceptcriteria.ClientSideCriterion
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- com.vaadin.event.dd.acceptcriteria.TargetDetailIs
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- com.vaadin.ui.Tree.TargetItemAllowsChildren
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All Implemented Interfaces:
Enclosing class:
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:
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Method Summary
All Methods Modifier and Type Method Description boolean
accept​(DragAndDropEvent dragEvent)
Validates the data in event to be appropriate for the
DropHandler.drop(DragAndDropEvent)
method.static Tree.TargetItemAllowsChildren
get()
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Methods inherited from class com.vaadin.event.dd.acceptcriteria.TargetDetailIs
getIdentifier, paintContent
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Methods inherited from class com.vaadin.event.dd.acceptcriteria.ClientSideCriterion
isClientSideVerifiable, paint, paintResponse
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Method Detail
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get
public static Tree.TargetItemAllowsChildren get()
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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 interfaceAcceptCriterion
Overrides:
accept
in classTargetDetailIs
Returns:
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